Browsing by Subject "Bosons"

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  • Lehnert, Ralf (Bristol : Institute of Physics Publishing, 2018)
    For practical reasons, the majority of past Lorentz tests has involved stable or quasistable particles, such as photons, neutrinos, electrons, protons, and neutrons. Similar efforts in the electroweak sector have only ...
  • Mishra, Tapan; Greschner, Sebastian; Santos, Luis (Bristol : Institute of Physics Publishing, 2016)
    A density-dependent gauge field may induce density-induced geometric frustration, leading to a non-trivial interplay between density modulation and frustration, which we illustrate for the particular case of ultra-cold ...
  • Deuretzbacher, Frank; Cremon, J.C.; Reimann, S.M. (College Park, MD : American Physical Society, 2010)
    We study the ground state of few bosons with repulsive dipole-dipole interaction in a quasi-one-dimensional harmonic trap by means of the exact diagonalization method. Up to three interaction regimes are found, depending ...
  • Deuretzbacher, Frank; Becker, D.; Bjerlin, J.; Reimann, S.M.; Santos, Luis (College Park, MD : American Physical Society, 2017)
    Strongly interacting one-dimensional (1D) Bose-Fermi mixtures form a tunable XXZ spin chain. Within the spin-chain model developed here, all properties of these systems can be calculated from states representing the ordering ...
  • Greschner, Sebastian; Piraud, M.; Heidrich-Meisner, F.; McCulloch, I.P.; Schollwöck, U.; Vekua, T. (College Park, MD : American Physical Society, 2015)
    The interplay between spontaneous symmetry breaking in many-body systems, the wavelike nature of quantum particles and lattice effects produces an extraordinary behavior of the chiral current of bosonic particles in the ...
  • Greschner, Sebastian; Piraud, M.; Heidrich-Meisner, F.; McCulloch, I.P.; Schollwöck, U.; Vekua, T. (College Park, MD : American Physical Society, 2016)
    We study the quantum phases of bosons with repulsive contact interactions on a two-leg ladder in the presence of a uniform Abelian gauge field. The model realizes many interesting states, including Meissner phases, vortex ...
  • Del Campo, A.; Retzker, A.; Plenio, Martin B. (Bristol : IOP Publishing Ltd., 2011)
    The Kibble-Zurek mechanism is applied to the spontaneous formation of vortices in a harmonically trapped thermal gas following a temperature quench through the critical value for Bose-Einstein condensation. Whereas in the ...
  • Greschner, Sebastian; Santos, Luis; Vekua, T. (College Park, MD : American Physical Society, 2013)
    Ultracold bosons in zig-zag optical lattices present a rich physics due to the interplay between frustration induced by lattice geometry, two-body interactions, and a three-body constraint. Unconstrained bosons may develop ...
  • Greschner, Sebastian; Vekua, T. (College Park, MD : American Physical Society, 2017)
    Two-leg bosonic ladders with flux harbor a remarkable vortex-hole duality between the weak-coupling vortex lattice superfluids and strong-coupling charge-density-wave crystals. The strong-coupling crystalline states, which ...