2 citations · 3 across the 4 of their papers we have counts for
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Physical manifestation of replica symmetry breaking in a quantum glass of bosons with off-diagonal disorder
Anna M. Piekarska, Tadeusz K. Kopeć
Glassiness occurs when disorder and frustration cause local degrees of freedom to freeze despite the lack of long-range order. In systems of interacting bosons, such glassiness may…
Reentrant phase transitions involving glassy and superfluid orders in the random hopping Bose-Hubbard model
Anna M. Piekarska, Tadeusz K. Kopeć
We study a system of strongly correlated bosons with off-diagonal disorder, i.e., randomness in the kinetic energy, and find a family of reentrant phase transitions that occur as a…
Stability of the replica-symmetric solution in the off-diagonally-disordered Bose-Hubbard model
Anna M. Piekarska, Tadeusz K. Kopeć
We study a disordered system of interacting bosons described by the Bose-Hubbard Hamiltonian with random tunneling amplitudes. We derive the condition for the stability of the repl…
Emergence of a superglass phase in the random hopping Bose-Hubbard model
Anna M. Piekarska, Tadeusz K. Kopeć
We study an experimentally feasible system of strongly correlated bosons with random hoppings, described by the infinite-range Bose-Hubbard model on a lattice with hopping integral…