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Benoît Vanderheyden - Publications ORBI
Wera, L., Fagnard, J.-F., Kumar, N. D., Shi, Y., Vanderheyden, B., & Vanderbemden, P. (2017). Magnetic Shielding Above 1 T at 20 K With Bulk, Large Grain YBCO Tubes Made by Buffer-aided Top Seeded Melt Growth. IEEE Transactions on Applied Superconductivity, 27(4).
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YBCO tubes of ~ 10 mm diameter closed at one extremity were engineered by a Buffer-Aided Top Seeded Melt Growth fabrication process (BA-TSMG). These tubes can act as efficient “dc” magnetic shields and are ...
Wera, L., Fagnard, J.-F., Kumar, N. D., Shi, Y., Vanderheyden, B., & Vanderbemden, P. (2016, September 07). Magnetic shielding above 1 T at 20 K with bulk, large grain YBCO tubes made by Buffer-aided Top Seeded Melt Growth. Poster session presented at Applied Superconductivity Conference ASC 2016, Denver, USA.
A superconducting tube can be used as an efficient magnetic shield. The best shielding performance levels are usually achieved when the tube is closed at one or both extremities. The purpose of the present ...
Brisbois, J., Motta, M., Avila Osses, J., Shaw, G., Devillers, T., Dempsey, N. M., Veerapandian, S. K. P., Colson, P., Vanderheyden, B., Vanderbemden, P., Ortiz, W. A., Nguyen, N. D., Kramer, R. B. G., & Silhanek, A. (2016). Imprinting superconducting vortex footsteps in a magnetic layer. Scientific Reports, 6, 27159.
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Local polarization of a magnetic layer, a well-known method for storing information, has found its place in numerous applications such as the popular magnetic drawing board toy or the widespread credit cards ...
Brisbois, J., Adami, O.-A., Avila Osses, J., Motta, M., Ortiz, W. A., Nguyen, N. D., Vanderbemden, P., Vanderheyden, B., Kramer, R. B. G., & Silhanek, A. (2016). Magnetic flux penetration in Nb superconducting films with lithographically defined micro-indentations. Physical Review B, 93(5), 054521.
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We present a thorough investigation by magneto-optical imaging of the magnetic flux penetration in Nb thin films with lithographically defined border indentations. We demonstrate that discontinuity lines (d ...
Fagnard, J.-F., Morita, M., Nariki, S., Teshima, H., Caps, H., Vanderheyden, B., & Vanderbemden, P. (2016). Magnetic moment and local magnetic induction of superconducting/ferromagnetic structures subjected to crossed fields: experiments on GdBCO and modelling. Superconductor Science and Technology, 29(12), 125004.
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Recent studies have shown that ferromagnetic materials can be used together with bulk high temperature superconductors in order to improve their magnetic trapped field. Remarkably, it has also been pointed out ...
Philippe, M., Fagnard, J.-F., Wera, L., Morita, M., Nariki, S., Teshima, H., Caps, H., Vanderheyden, B., & Vanderbemden, P. (2016). Influence of crossed fields in structures combining large grain, bulk (RE)BCO superconductors and soft ferromagnetic discs. Journal of Physics: Conference Series, 695, 012003.
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Bulk (RE)BCO superconductors are able to trap record magnetic fields and can be used as powerful permanent magnets in various engineering applications such as rotating machines and magnetic bearings. When ...
Vanderbemden, P., Cardwell, D. A., Freyhardt, H. C., & Vanderheyden, B. (2016). Processing and applications of (RE)BCO and MgB2 bulk superconductors: an introduction to the special issue. Superconductor Science and Technology, 29, 060302.
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Preface of the Superconductor Science and Technology special issue "Focus on processing and applications of (RE)BCO and MgB2 bulk superconductors". This special issue focuses on contributions from the 9th ...
Wera, L., Fagnard, J.-F., Hogan, K., Vanderheyden, B., & Vanderbemden, P. (2016). Magnetic Shielding with Bulk High Temperature Superconductors: Improvement of the Shielded Volume in Hollow Cylinders. In M., Muralidhar (Ed.), Superconductivity: Applications Today and Tomorrow (pp. 95-114). New York: Nova Science.
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The superconducting HTS hollow cylinder has been one of the first geometries to demonstrate its utility as an efficient passive magnetic shield, and particularly for DC magnetic shielding. The shielding ...
Wera, L., Fagnard, J.-F., Hogan, K., Vanderheyden, B., & Vanderbemden, P. (2015, September 09). Design of the superconducting end caps of a tubular magnetic shield. Poster session presented at EUropean Conference on Applied Superconductivity EUCAS 2015.
Shielding a sensitive device against DC or AC stray magnetic fields can be realized very efficiently with high-Tc superconductors. A simple magnetic shield can be obtained with a tube enclosing the device ...
Philippe, M., Ainslie, M. D., Wera, L., Fagnard, J.-F., Dennis, A., Shi, Y., Cardwell, D. A., Vanderheyden, B., & Vanderbemden, P. (2015). Influence of soft ferromagnetic sections on the magnetic flux density profile of a large grain, bulk Y-Ba-Cu-O superconductor. Superconductor Science and Technology, 28, 095008.
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Bulk, high temperature superconductors have significant potential for use as powerful permanent magnets in a variety of practical applications due to their ability to trap record magnetic fields. In this paper ...
Fagnard, J.-F., Kirsch, S., Morita, M., Teshima, H., Vanderheyden, B., & Vanderbemden, P. (2015). Measurements on magnetized GdBCO pellets subjected to small transverse ac magnetic fields at very low frequency: Evidence for a slowdown of the magnetization decay. Physica C: Superconductivity, 512, 42-53.
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Due to their ability to trap large magnetic inductions, superconducting bulk materials can be used as powerful permanent magnets. The permanent magnetization of such materials, however, can be significantly ...
Egan, R., Philippe, M., Wera, L., Fagnard, J.-F., Vanderheyden, B., Dennis, A., Shi, Y., Cardwell, D. A., & Vanderbemden, P. (2015). A flux extraction device to measure the magnetic moment of large samples; application to bulk superconductors. Review of Scientific Instruments, 86(2), 025107.
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We report the design and construction of a flux extraction device to measure the DC magnetic moment of large samples (i.e., several cm3) at cryogenic temperature. The signal is constructed by integrating the ...
Hogan, K., Fagnard, J.-F., Wera, L., Vanderheyden, B., & Vanderbemden, P. (2015). Magnetic shielding of an inhomogenous magnetic field source by a bulk superconducting tube. Superconductor Science and Technology, 28(3), 035011.
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Bulk type-II irreversible superconductors can act as excellent passive magnetic shields, with a strong attenuation of low frequency magnetic fields. Up to now, the performances of superconducting magnetic ...
Brisbois, J., Vanderheyden, B., Colauto, F., Motta, M., Ortiz, W. A., Fritzsche, J., Nguyen, N. D., Hackens, B., Adami, O.-A., & Silhanek, A. (2014). Classical analogy for the deflection of flux avalanches by a metallic layer. New Journal of Physics, 16(10), 103003.
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Sudden avalanches of magnetic flux bursting into a superconducting sample undergo deflections of their trajectories when encountering a conductive layer deposited on top of the superconductor. Remarkably, in ...
Wera, L., Fagnard, J.-F., Hogan, K., Vanderheyden, B., & Vanderbemden, P. (2014, August 12). Experimental study of the magnetic shielding performances of a Bi2223 tube closed by a Bi2223 cap. Poster session presented at Applied Superconductivity Conference ASC 2014, Charlotte, NC, USA.
A superconducting tube can be used as an efficient magnetic shield. However, the shielding factor (defined as the ratio between the applied magnetic induction and the magnetic induction measured inside the ...
Philippe, M., Fagnard, J.-F., Kirsch, S., Xu, Z., Dennis, A., Shi, Y., Cardwell, D. A., Vanderheyden, B., & Vanderbemden, P. (2014). Magnetic characterisation of large grain, bulk Y–Ba–Cu–O superconductor–soft ferromagnetic alloy hybrid structures. Physica C: Superconductivity, 502, 20-30.
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Large grain, bulk Y–Ba–Cu–O (YBCO) high temperature superconductors (HTS) have significant potential for use in a variety of practical applications that incorporate powerful quasi-permanent magnets. In the ...
Boutaayamou, M., Lemaire, P., Vanderheyden, B., & Vanderbemden, P. (2014). Design and fabrication of an electrode array sensor for probing the electric potential distribution at the mesoscopic scale in antistatic felts. Measurement Science and Technology, 25, 075903 (9.
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We present an original voltage probe design for measuring the electric potential distribution at the mesoscopic scale (i.e., 1 mm–1 cm) in antistatic felts. The felts are composed of a mixture of non ...
Kirsch, S., Fagnard, J.-F., Vanderbemden, P., & Vanderheyden, B. (2013). Semi-analytical study of AC losses in an infinitely long superconducting cylinder surrounded by a metallic sheath: magnetic field dependent critical current density and generation of harmonics. Superconductor Science and Technology, 26, 115001.
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We study the AC losses in an infinitely long cylinder made of a superconducting core surrounded by a non-magnetic metallic sheath and subjected to an axial magnetic field. The losses are computed by assuming ...
Bogdanowicz, J., Gilbert, M., Innocenti, N., Koelling, S., Vanderheyden, B., & Vandervorst, W. (2013). Light absorption in conical silicon particles. Optics Express, 21(3), 3891.
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The problem of the absorption of light by a nanoscale dielectric cone is discussed. A simplified solution based on the analytical Mie theory of scattering and absorption by cylindrical objects is proposed and ...
Wera, L., Fagnard, J.-F., Levin, G. A., Vanderheyden, B., & Vanderbemden, P. (2012). Magnetic shielding with YBCO coated conductors: influence of the geometry on its performances. IEEE Transactions on Applied Superconductivity, 23(3), 8200504.
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A superconducting magnetic shield can be built as a stack of several sections of milled 2G coated conductors. Each section consists of a closed loop where persistent currents can flow and provide a strong ...
Wera, L., Fagnard, J.-F., Levin, G., Vanderheyden, B., & Vanderbemden, P. (2012, October 10). Magnetic shielding with YBCO coated conductors: influence of the geometry on its performances. Poster session presented at Applied Superconductivity Conference ASC2012, Portland, OR, USA.
A superconducting magnetic screen can be built as a stack of several sections of milled 2G coated conductors. Each section consists of a closed loop where persistent currents can flow and provide a strong ...
Philippe, M., Fagnard, J.-F., Dennis, A., Shi, Y., Cardwell, D. A., Vanderheyden, B., & Vanderbemden, P. (2012, October). Magnetic behaviour of soft ferromagnetic alloys attached to bulk (RE)BCO superconductors. Poster session presented at ASC 2012 : Applied Superconductivity Conference, Portland, OR, USA.
Bulk (RE)BCO materials can be used potentially as powerful permanent magnets. The magnetic field distribution around a bulk HTS magnet, however, is strongly non-uniform (conic profile predicted by the Bean ...
Fagnard, J.-F., Elschner, S., Hobl, A., Bock, J., Vanderheyden, B., & Vanderbemden, P. (2012). Magnetic shielding properties of a superconducting hollow cylinder containing slits: Modelling and experiment. Superconductor Science and Technology, 25(10), 104006.
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This paper deals with the magnetic properties of bulk high temperature superconducting cylinders used as magnetic shields. We investigate, both numerically and experimentally, the magnetic properties of a ...
Boutaayamou, M., Léonard, A., Vanderheyden, B., & Vanderbemden, P. (2011). Study of Conduction Mechanisms in Antistatic Felts at the Mesoscopic Scale. International Symposium on New Frontiers in Fiber Materials Science; Conference Proceedings.
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This work is part of a project that deals with the optimization of the quantity and the nature of conductive fibers in antistatic felts used for filtering and sieving powders. Our research concerns the ...
Vanderheyden, B. (2011, May). Brandt model: applications in magnetic shielding and in magneto-thermal phenomena. Paper presented at Second International Workshop on Numerical Modelling of HTS, Cambridge, UK, 11-13 April 2011, Cambridge, United Kingdom.
In this talk, I illustrate two applications of the Brandt model to calculate magnetic shielding for high-Tc superconducting tubes and the self-heating of superconducting pellets, in each case subjected to an ...
Lousberg, G., Fagnard, J.-F., Chaud, X., Ausloos, M., Vanderbemden, P., & Vanderheyden, B. (2011). Magnetic properties of drilled bulk high-temperature superconductors filled with a ferromagnetic powder. Superconductor Science and Technology, 24, 035008.
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It is shown that filling the holes of a drilled bulk high-temperature superconductor (HTS) with a soft ferromagnetic powder enhances its trapping properties. The magnetic properties of the trapped field magnet ...
Vanderheyden, B., & Jackson, A. D. (2011). Random matrix models for phase diagrams. Reports on Progress in Physics, 74, 102001.
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We describe a random matrix approach that can provide generic and readily soluble mean-field descriptions of the phase diagram for a variety of systems ranging from QCD to high-T_c materials. Instead of ...
Leroux, A., Destiné, J., Vanderheyden, B., Gracheva, M., & Leburton, J.-P. (2010). SPICE-Circuit Simulation of the Electrical Response of a Semiconductor Membrane to a Single-Stranded DNA Translocating Through a Nanopore. IEEE Transactiones on Nanotechnology, 9(3), 322-329.
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In this paper, we describe a circuit-element model for the electric detection of biomolecules in translocation through a nanopore in a semiconductor-oxide-semiconductor (SOS) membrane. The biomolecules are ...
Lousberg, G., Fagnard, J.-F., Ausloos, M., Vanderbemden, P., & Vanderheyden, B. (2010). Numerical Study of the Shielding properties of Macroscopic Hybrid Ferromagnetic/Superconductor Hollow Cylinders. IEEE Transactions on Applied Superconductivity, 20(1), 33.
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We study the magnetic shielding properties of hybrid ferromagnetic/superconductor (F/S) structures consisting of two coaxial cylinders, with one of each material.We use an axisymmetric finite-element model in ...
Fagnard, J.-F., Dirickx, M., Levin, G. A., Barnes, P. N., Vanderheyden, B., & Vanderbemden, P. (2010). Use of second generation coated conductors for efficient shielding of DC magnetic fields. Journal of Applied Physics, 108, 013910.
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This paper reports the results of an experimental investigation of the performance of two types of magnetic screens assembled from YBa2Cu3O7-d (YBCO) coated conductors. Since effective screening of the axial ...
Fagnard, J.-F., Elschner, S., Bock, J., Dirickx, M., Vanderheyden, B., & Vanderbemden, P. (2010). Shielding efficiency and E(J) characteristics measured on large melt cast Bi-2212 hollow cylinders in axial magnetic fields. Superconductor Science and Technology, 23, 095012.
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We show that tubes of melt cast Bi-2212 used as current leads for LTS magnets can also act as efficient magnetic shields. The magnetic screening properties under an axial DC magnetic field are characterized ...
Laurent, P., Fagnard, J.-F., Hari Babu, N., Cardwell, D. A., Vanderheyden, B., & Vanderbemden, P. (2010). Self-heating of bulk high temperature superconductors of finite height subjected to a large alternating magnetic field. Superconductor Science and Technology, 23, 124004.
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In this work we study, both experimentally and numerically, the self-heating of a bulk, large YBCO pellet of aspect ratio (thickness / diameter) ~ 0.4 subjected to a large AC magnetic field. To ensure accurate ...
Lousberg, G. P., Fagnard, J.-F., Ausloos, M., Vanderbemden, P., & Vanderheyden, B. (2010). Modification of the trapped field in bulk HTS as a result of the drilling of a pattern of artificial holes. Journal of Physics: Conference Series, 234, 012023.
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The trapped magnetic field is examined in bulk high-temperature superconductors that are artificially drilled along their c-axis. The influence of the hole pattern on the magnetization is studied and compared ...
Lousberg, G., Fagnard, J.-F., Haanappel, E., Chaud, X., Ausloos, M., Vanderheyden, B., & Vanderbemden, P. (2009, December). Pulsed-field magnetization of drilled bulk high-temperature superconductors: flux front propagation in the volume and on the surface. Superconductor Science and Technology, (22), 125026.
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We present a method for characterizing the propagation of the magnetic flux in an artificially drilled bulk high-temperature superconductor (HTS) during pulsed-field magnetization. As the magnetic pulse ...
Fagnard, J.-F., Dirickx, M., Ausloos, M., Lousberg, G., Vanderheyden, B., & Vanderbemden, P. (2009). Magnetic shielding properties of high- Tc superconducting hollow cylinders: model combining experimental data for axial and transverse magnetic field configurations. Superconductor Science and Technology, 22(10), 105002 (10.
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Magnetic shielding efficiency was measured on high- Tc superconducting hollow cylinders subjected to either an axial or a transverse magnetic field in a large range of field sweep rates, dBapp/dt. The ...
Fagnard, J.-F., Denis, S., Lousberg, G., Dirickx, M., Ausloos, M., Vanderheyden, B., & Vanderbemden, P. (2009). DC and AC Shielding Properties of Bulk High-Tc Superconducting Tubes. IEEE Transactions on Applied Superconductivity, 19(3), 2905-2908.
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We have studied numerically and experimentally the magnetic flux penetration in high-Tc superconducting tube subjected to a uniform magnetic field parallel to its long axis. This study is carried in view of ...
Lousberg, G., Ausloos, M., Geuzaine, C., Dular, P., Vanderbemden, P., & Vanderheyden, B. (2009). Numerical simulation of the magnetization of high-temperature superconductors: a 3D finite element method using a single time-step iteration. Superconductor Science and Technology, 22, 055005.
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In this paper, we report progress towards a 3D finite element model for the magnetization of a high-temperature superconductor (HTS): we suggest a method that takes into account a power law conductivity and ...
Lousberg, G., Fagnard, J.-F., Noudem, J. G., Ausloos, M., Vanderheyden, B., & Vanderbemden, P. (2009). Measurement of the magnetic field inside the holes of a drilled bulk high-Tc superconductor. Superconductor Science and Technology, 22, 045009.
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We use macroscopic holes drilled in a bulk YBCO superconductor to probe its magnetic properties in the volume of the sample. The sample is subjected to an AC magnetic flux with a density ranging from 30 to ...
Vanderheyden, B., & Jackson, A. D. (2009). Random matrix model for antiferromagnetism and superconductivity on a two-dimensional lattice. Physical Review B (Condensed Matter and Materials Physics), 79(14), 144502.
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We suggest a new mean-field method for studying the thermodynamic competition between magnetic and superconducting phases in a two-dimensional square lattice. A partition function is constructed by writing ...
Lousberg, G., Ausloos, M., Vanderbemden, P., & Vanderheyden, B. (2008). Bulk high-Tc superconductors with drilled holes: how to arrange the holes to maximize the trapped magnetic flux? Superconductor Science and Technology, 21, 025010.
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Drilling holes in a bulk high-Tc superconductor enhances the oxygen annealing and the heat exchange with the cooling liquid. However, drilling holes also reduces the amount of magnetic flux that can be ...
Laurent, P., Fagnard, J.-F., Vanderheyden, B., Hari Babu, N., Cardwell, D. A., Ausloos, M., & Vanderbemden, P. (2008). An ac susceptometer for the characterization of large, bulk superconducting samples. Measurement Science & Technology, 19(8), 085705.
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The main purpose of this work was to design, develop and construct a simple, low-cost ac susceptometer to measure large, bulk superconducting samples (up to 32 mm in diameter) in the temperature range 78–120 ...
Denis, S., Dirickx, M., Vanderbemden, P., Ausloos, M., & Vanderheyden, B. (2007). Field penetration into hard type-II superconducting tubes: effects of a cap, a non-superconducting joint, and non-uniform superconducting properties. Superconductor Science and Technology, 20(5), 418-427.
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Using the numerical method of Brandt (1998 Phys. Rev. B 58 6506), we study the penetration of a uniform magnetic field that is gradually applied parallel to the axis of finite type-II superconducting tubular ...
Denis, S., Dusoulier, L., Dirickx, M., Vanderbemden, P., Cloots, R., Ausloos, M., & Vanderheyden, B. (2007). Magnetic shielding properties of high-temperature superconducting tubes subjected to axial fields. Superconductor Science and Technology, 20(3), 192-201.
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We have experimentally studied the magnetic shielding properties of a cylindrical shell of BiPbSrCaCuO subjected to low frequency AC axial magnetic fields. The magnetic response has been investigated as a ...
Denis, S., Grenci, G., Dusoulier, L., Cloots, R., Vanderbemden, P., Vanderheyden, B., Dirickx, M., & Ausloos, M. (2006). Characterisation of the magnetic shielding properties of YBaCuO thick films prepared by electrophoretic deposition on silver substrates. Journal of Physics: Conference Series, 43, 509-512.
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This communication reports experimental results on the superconducting properties of YBaCuO thick films prepared by electrophoretic deposition on silver substrates. The magnetic shielding properties of the ...
Dusoulier, L., Denis, S., Fagnard, J.-F., Henrist, C., Vanderheyden, B., Vanderbemden, P., Rulmont, A., Dirickx, M., Ausloos, M., Cloots, R., & Vertruyen, B. (2006). YBa2Cu3O(7-delta) thick films on Ag prepared by the electrophoretic deposition technique. Journal of Physics: Conference Series, 43, 134-137.
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YBa2Cu3O7-δ thick films have been deposited onto Ag substrates by the Electrophoretic Deposition (EPD) technique. Different microstructures and electrical behaviours were observed depending on the starting ...
Dusoulier, L., Denis, S., Nutal, N., Henrist, C., Vanderheyden, B., Vanderbemden, P., Rulmont, A., Dirickx, M., Ausloos, M., Cloots, R., & Vertruyen, B. (2006). Texturation of YBa2Cu3O7-delta thick films by electrophoretic deposition under magnetic field. Key Engineering Materials [=KEM], 314, 153-157.
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YBa2Cu3O7-delta coatings were deposited by electrophoretic deposition (EPD) onto Ni substrates. Particles of different sizes and shapes were used in order to study the influence of the powder microstructure on ...
Vanderheyden, B., & Jackson, A. D. (2005). Temperature dependence in random matrix models with pairing condensates. Physical Review D, 72(1), 016003.
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We address a number of issues raised by a manuscript of Klein, Toublan, and Verbaarschot [hep-ph/0405180] in which the authors introduce a random matrix model for QCD with two colors, two flavors, and fermions ...
Vanderheyden, B., Jackson, A. D., Lansberg, J.-P. (Ed.), Cudell, J.-R. (Ed.), & Cugnon, J. (Ed.). (2005). Random matrix models for chiral and diquark condensation. AIP Conference Proceedings, 775, 220-229.
We consider random matrix models for the thermodynamic competition between chiral symmetry breaking and diquark condensation in QCD at finite temperature and finite baryon density. The models produce mean ...
Vanderheyden, B., & Jackson, A. D. (2004, December). Random matrix model for the thermodynamic competition between chiral and diquark condensation. Paper presented at HLPR 2004, Joint meeting Heidelberg-Liège-Paris-Rostock.
We consider random matrix models for the thermodynamic competition between chiral symmetry breaking and diquark condensation in QCD at finite temperature and finite baryon density. The models produce mean ...
Vanderheyden, B., & Jackson, A. D. (2003, May 29). A random matrix study of the QCD phase diagram. Paper presented at Random matrices in subatomic physics, Trento, Italy.
In this talk, I will consider random matrix models which describe the thermodynamic competition between diquark and chiral condensation. I will first study the evolution of the phase structure as a function of ...
Vanderheyden, B., & Jackson, A. D. (2003). Microscopic spectral density in random matrix models for chiral and diquark condensation. Physical Review D, 67(8), 085016.
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We examine random matrix models of QCD which are capable of supporting both chiral and diquark condensation. A numerical study of the spectral densities near zero virtuality shows that the introduction of ...
Vanderheyden, B., & Van Droogenbroeck, M. (2002). Étude de la paradiaphonie (NEXT) au sein de câbles composés de paires torsadées.
Le réseau téléphonique est constitué d’une succession de câbles mis bout à bout et interconnectés au droit des répartiteurs. Cette hétérogénéité de câblage n’est guère favorable pour la réduction des ...
Vanderheyden, B., & Jackson, A. D. (2002, July 18). Random matrix models for chiral and diquark condensations: analysis of the one-body spectral densities. Poster session presented at Quark Matter 2002, Nantes, France.
We examine random matrix models of QCD which are capable of supporting both chiral and diquark condensation. A numerical study of the spectral densities near zero virtuality shows that the introduction of ...
Vanderheyden, B., & Jackson, A. D. (2001). Random matrix study of the phase structure of QCD with two colors. Physical Review. D : Particles and Fields, 64(7), 074016.
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We apply a random matrix model to the study of the phase diagram of QCD with two colors, two flavors, and a small quark mass. Although the effects of temperature are only included schematically, this model ...
Vanderheyden, B., & Baym, G. (2000). Self-consistent approximations: application to a quasiparticle description of the thermodynamic properties of relativistic plasmas. In B., Michael, PROGRESS IN NONEQUILIBRIUM GREEN'S FUNCTIONS (pp. 144-152). World Scientific.
We generalize the concept of conserving, Phi-derivable, approximations to relativistic field theories. Treating the interaction field as a dynamical degree of freedom, we derive the thermodynamical potential ...
Vanderheyden, B., & Jackson, A. D. (2000). Random matrix model for chiral symmetry breaking and color superconductivity in QCD at finite density. Physical Review. D : Particles and Fields, 62(9), 094010.
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We consider a random matrix model which describes the competition between chiral symmetry breaking and the formation of quark Cooper pairs in QCD at finite density. We study the evolution of the phase ...
Vanderheyden, B., & Jackson, A. D. (2000). A random matrix model for color superconductivity at zero chemical potential. Physical Review. D : Particles and Fields, 61(7), 076004.
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We discuss random matrix models for the spontaneous breaking of both chiral and color symmetries at zero chemical potential and finite temperature. Exploring different Lorentz and gauge symmetric color ...
Vanderheyden, B., & Baym, G. (1999, September 21). Self-consistent approximations: application to a quasiparticle description of the thermodynamic properties of relativistic plasmas. Paper presented at Progress in Nonequilibrium Green's functions, Rostock, Allemagne.
We generalize the concept of conserving, Phi-derivable, approximations to relativistic field theories. Treating the interaction field as a dynamical degree of freedom, we derive the thermodynamical potential ...
Vanderheyden, B. (1998). Interacting elementary excitations in ultrarelativistic plasmas: Damping mechanisms and plasma thermodynamics. Unpublished doctoral thesis, University of Illinois at Urbana-Champaign, ​Urbana-Champaign, ​​USA.
This dissertation examines the properties of the elementary excitations in quark-gluon and electromagnetic plasmas. Due to Debye screening and Landau damping mechanisms, the interaction fields fall off at ...
Vanderheyden, B., & Baym, G. (1998). Self-consistent approximations in relativistic plasmas: Quasiparticle analysis of the thermodynamic properties. Journal of Statistical Physics, 93(3-4), 843-861.
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We generalize the concept of conserving, Phi-derivable, approximations to relativistic field theories. Treating the interaction field as a dynamical degree of freedom, we derive the thermodynamic potential in ...
Vanderheyden, B., & Ollitrault, J. Y. (1997). Damping rates of hard momentum particles in a cold ultrarelativistic plasma. Physical Review. D : Particles and Fields, 56(8), 5108-5122.
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We compute the damping rates of one-particle excitations in a cold ultrarelativistic plasma to leading order in the coupling constant e for three types of interaction: Yukawa coupling to a massless scalar ...