147 citations · 245 across the 4 of their papers we have counts for
4 papers
Vortex and Meissner phases of strongly-interacting bosons on a two-leg ladder
M. Piraud, F. Heidrich-Meisner, I. P. McCulloch +3
We establish the phase diagram of the strongly-interacting Bose-Hubbard model defined on a two-leg ladder geometry in the presence of a homogeneous flux. Our work is motivated by a…
Fidelity at Berezinskii-Kosterlitz-Thouless quantum phase transitions
G. Sun, A. K. Kolezhuk, T. Vekua
We clarify the long-standing controversy concerning the behavior of the ground state fidelity in the vicinity of a quantum phase transition of the Berezinskii-Kosterlitz-Thouless t…
Magnetic phases of spin-3/2 fermions on a spatially anisotropic square lattice
A. K. Kolezhuk, T. Vekua
We study the magnetic phase diagram of spin-3/2 fermions in a spatially anisotropic square optical lattice at quarter filling (corresponding to one particle per lattice site). In t…
Mott-insulator phases of spin-3/2 fermions in the presence of quadratic Zeeman coupling
Karen Rodriguez, Arturo Argüelles, Maria Colomé-Tatché +2
We study the influence of the quadratic Zeeman effect in the Mott-insulator phases of hard-core spin-3/2 fermions. We show that contrary to spinor bosons, any quadratic Zeeman coup…