Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Andreas Laeuchli"'
Publikováno v:
Physical Review B
We investigate the propagation dynamics of initially localized excitations in spin-1/2 Heisenberg ladders. We consider initial states with two overturned spins, either on neighboring sites on the same leg or on the two sites of a single rung, in an o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86de41fa37796b51649a4b3b1246ca9b
http://arxiv.org/abs/1612.07510
http://arxiv.org/abs/1612.07510
Publikováno v:
EPL-Europhysics Letters
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2012, 98, pp.27005. ⟨10.1209/0295-5075/98/27005⟩
EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2012, 98, pp.27005. ⟨10.1209/0295-5075/98/27005⟩
In a recent letter [D. Poletti et al., EPL 93, 37008 (2011)] a model of attractive spinless fermions on the honeycomb lattice at half filling has been studied by mean-field theory, where distinct homogenous phases at rather large attraction strength
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed98ba105013e52ccf45714e168a6b3a
https://hal.archives-ouvertes.fr/hal-00694548
https://hal.archives-ouvertes.fr/hal-00694548
Autor:
Sandro Wenzel, Andreas Laeuchli
We report on large scale finite-temperature Monte Carlo simulations of the classical $120^\circ$ or $e_g$ orbital-only model on the simple cubic lattice in three dimensions with a focus towards its critical properties. This model displays a continuou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::029d37b704b52eed7e210a1bed60032b
http://arxiv.org/abs/1106.3426
http://arxiv.org/abs/1106.3426
Autor:
Corinna Kollath, Andreas Laeuchli
We investigate the spreading of information in a one-dimensional Bose-Hubbard system after a sudden parameter change. In particular, we study the time-evolution of correlations and entanglement following a quench. The investigated quantities show a l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5e303c01f0230688f3f752330212a34
Publikováno v:
Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 2007, 19, pp.145205. ⟨10.1088/0953-8984/19/14/145205⟩
Journal of Physics: Condensed Matter, IOP Publishing, 2007, 19, pp.145205. ⟨10.1088/0953-8984/19/14/145205⟩
We investigate the properties of the two-dimensional frustrated quantum antiferromagnet on the square lattice, especially at infinitesimal doping. We find that next nearest neighbor (N.N.) J2 and next-next N.N. J3 interactions together destroy the an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::079df3bd21d6420d6466ab951ca5c20d
https://infoscience.epfl.ch/record/267590
https://infoscience.epfl.ch/record/267590