71 citations · 289 across the 30 of their papers we have counts for
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cond-mat.quant-gas2013★ 5 cited
Galilean invariance in confined quantum systems: Implications on spectral gaps, superfluid flow, and periodic order
Andras Suto
Galilean invariance leaves its imprint on the energy spectrum and eigenstates of quantum particles, bosons or fermions, confined in a bounded domain. It endows the spectrum wit…
cond-mat.quant-gas2013
Condensation of quasiparticles and density modulation beyond the superfluid critical velocity
Andras Suto, Peter Szepfalusy
We investigate the effect of a constant external velocity field on the ground state of a bosonic quasiparticle Hamiltonian. Below a critical velocity the ground state is a quasipar…