Publications
123 results found
Rajantie A, 2003, Magnetic monopoles from gauge theory phase transitions, PHYSICAL REVIEW D, Vol: 68, ISSN: 2470-0010
- Author Web Link
- Cite
- Citations: 12
Neuhaus T, Rajantie A, Rummukainen K, 2003, The inverted XY universality of the superconductivity phase transition, 20th International Symposium on Lattice Field Theory, Publisher: ELSEVIER, Pages: 915-917, ISSN: 0920-5632
Neuhaus T, Rajantie A, Rummukainen K, 2003, Numerical study of duality and universality in a frozen superconductor, Physical Review B - Condensed Matter and Materials Physics, Vol: 67, Pages: 145251-1452516, ISSN: 0163-1829
The three-dimensional integer-valued lattice gauge theory, which is also known as a "frozen superconductor," can be obtained as a certain limit of the Ginzburg-Landau theory of superconductivity, and is believed to be in the same universality class. It is also exactly dual to the three-dimensional XY model. We use this duality to demonstrate the practicality of recently developed methods for studying topological defects, and investigate the critical behavior of the phase transition using numerical Monte Carlo simulations of both theories. On the gauge theory side, we concentrate on the vortex tension and the penetration depth, which map onto the correlation lengths of the order parameter and the Noether current in the XY model, respectively. We show how these quantities behave near the critical point, and that the penetration depth exhibits critical scaling only very close to the transition point. This may explain the failure of superconductor experiments to see the inverted XY model scaling.
Neuhaus T, Rajantie A, Rummukainen K, 2003, Numerical study of duality and universality in a frozen superconductor, PHYSICAL REVIEW B, Vol: 67, ISSN: 1098-0121
- Author Web Link
- Cite
- Citations: 16
Rajantie A, 2003, Formation of magnetic monopoles in hot gauge theories, 5th International Conference on Strong and Electroweak Matter (SEWM 2002), Publisher: WORLD SCIENTIFIC PUBL CO PTE LTD, Pages: 492-496
Davis AC, Hart A, Kibble TWB, et al., 2002, Monopole mass in the three-dimensional Georgi-Glashow model, PHYSICAL REVIEW D, Vol: 65, ISSN: 1550-7998
- Author Web Link
- Cite
- Citations: 14
Copeland EJ, Pascoli S, Rajantie A, 2002, Dynamics of tachyonic preheating after hybrid inflation, PHYSICAL REVIEW D, Vol: 65, ISSN: 2470-0010
- Author Web Link
- Cite
- Citations: 110
Kajantie K, Laine M, Neuhaus T, et al., 2002, Critical behaviour of the Ginzburg-Landau model in the type II region, 19th International Symposium on Lattice Field Theory, Publisher: ELSEVIER SCIENCE BV, Pages: 959-961, ISSN: 0920-5632
- Author Web Link
- Cite
- Citations: 5
Rajantie A, 2002, Formation of topological defects in gauge field theories, INTERNATIONAL JOURNAL OF MODERN PHYSICS A, Vol: 17, Pages: 1-43, ISSN: 0217-751X
- Author Web Link
- Cite
- Citations: 51
Hindmarsh M, Rajantie A, 2001, Phase transition dynamics in the hot Abelian Higgs model, PHYSICAL REVIEW D, Vol: 64, ISSN: 2470-0010
- Author Web Link
- Cite
- Citations: 24
Copeland EJ, Lyth D, Rajantie A, et al., 2001, Hybrid inflation and baryogenesis at the TeV scale, PHYSICAL REVIEW D, Vol: 64, ISSN: 2470-0010
- Author Web Link
- Cite
- Citations: 75
RAJANTIE A, 2001, PREHEATING AND PHASE TRANSITIONS IN GAUGE THEORIES, Strong and Electroweak Matter 2000
Rajantie A, 2001, Local gauge invariance and formation of topological defects, Symposium on Ultra Low Energy Physics - Methods and Phenomenology, Publisher: KLUWER ACADEMIC/PLENUM PUBL, Pages: 5-16, ISSN: 0022-2291
- Author Web Link
- Cite
- Citations: 10
Rajantie A, Saffin PM, Copeland EJ, 2001, Electroweak preheating on a lattice, PHYSICAL REVIEW D, Vol: 63, ISSN: 2470-0010
- Author Web Link
- Cite
- Citations: 59
Davis AC, Kibble TWB, Rajantie A, et al., 2000, Topological defects in lattice gauge theories, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
- Author Web Link
- Cite
- Citations: 21
RAJANTIE A, 2000, NON-EQUILIBRIUM DYNAMICS OF HOT ABELIAN HIGGS MODEL, COSMO-99
Rajantie A, 2000, Abelian hard thermal loops on a lattice, 17th International Symposium on Lattice Field Theory (Lattice 99), Publisher: ELSEVIER SCIENCE BV, Pages: 580-582, ISSN: 0920-5632
Rajantie A, 2000, Abelian hard thermal loops on a lattice, Nuclear Physics B - Proceedings Supplements, Vol: 83-84, Pages: 580-582, ISSN: 0920-5632
In Abelian theories, one can write for the hard thermal loop equations of motions a local formulation that is more economical than the traditional Vlasov formulation and is in explicitly canonical form. I show how this formulation can be used for simulating non-equilibrium dynamics in the Abelian Higgs model.
Kajantie K, Laine M, Neuhaus T, et al., 2000, O(2) symmetry breaking versus vortex loop percolation, Physics Letters B, Vol: 482, Pages: 114-122
Hindmarsh M, Rajantie A, 2000, Defect formation and local gauge invariance, Physical Review Letters, Vol: 85, Pages: 4660-4663
Rajantie A, Copeland EJ, 2000, Phase transitions from preheating in gauge theories, Physical Review Letters, Vol: 85, Pages: 916-919
Kajantie K, Laine M, Neuhaus T, et al., 1999, Gauge-invariant strings in the 3d U(1)+Higgs theory, XVIth International Symposium on Lattice Field Theory (Lattice 98), Publisher: ELSEVIER SCIENCE BV, Pages: 703-705, ISSN: 0920-5632
Kajantie K, Laine M, Neuhaus T, et al., 1999, Vortex tension as an order parameter in three-dimensional U(1)+Higgs theory, Nuclear Physics B, Vol: 546, Pages: 351-365
Rajantie A, Hindmarsh M, 1999, Simulating hot Abelian gauge dynamics, Physical Review D, Vol: 60
Kajantie K, Laine M, Neuhaus T, et al., 1999, Statistical mechanics of vortices from field theory, Nuclear Physics B, Vol: 559, Pages: 395-428
Kajantie K, Laine M, Peisa J, et al., 1998, High-T QCD and dimensional reduction: measuring the Debye mass, XVth International Symposium on Lattice Field Theory (Lattice 97), Publisher: ELSEVIER SCIENCE BV, Pages: 418-420, ISSN: 0920-5632
- Author Web Link
- Cite
- Citations: 4
Rajantie A, 1998, Vortices and the Ginzburg-Landau phase transition, Physica B, Vol: 255, Pages: 108-115
Kajantie K, Laine M, Rajantie A, et al., 1998, The phase diagram of three-dimensional SU(3)+adjoint Higgs theory, Journal of High Energy Physics, Vol: 11
Laine M, Rajantie A, 1998, Lattice-continuum relations for 3d SU(N)+Higgs theories, Nuclear Physics B, Vol: 512, Pages: 471-489
This data is extracted from the Web of Science and reproduced under a licence from Thomson Reuters. You may not copy or re-distribute this data in whole or in part without the written consent of the Science business of Thomson Reuters.