5 papers
Generalized Hydrodynamics of Bloch Oscillations in the Absence of a Lattice
Stefano Scopa, Philip Zechmann, Michael Knap +2
Objects subjected to a constant force generally increase their velocity over time. This expectation fails whenever their energy is a smooth and periodic function of momentum, resul…
Analytical solution of a free-fermion chain with time-dependent ramps
Viktor Eisler, Riccarda Bonsignori, Stefano Scopa
We provide an exact analytical solution of the single-particle Schrödinger equation for a chain of non-interacting fermions subject to a time-dependent linear potential, with its…
One-body correlations and momentum distributions of trapped one-dimensional Bose gases at finite temperature
Attila Takács, Yicheng Zhang, Pasquale Calabrese +3
We introduce a general approximate method for calculating the one-body correlations and the momentum distributions of one-dimensional Bose gases at finite interaction strengths and…
Enhanced correlations due to ballistic transport
Damiano De Angelis, Jacopo De Nardis, Stefano Scopa
We investigate the nature of density-density correlations in a 1D gas of hard-core particles initially prepared at equilibrium (either at zero or finite temperature) on a semi-infi…
Quasicondensation and off-diagonal long-range order of hard-core bosons during a free expansion
A. Takács, S. Scopa, P. Calabrese +2
Quasicondensation in one dimension is known to occur for equilibrium systems of hard-core bosons (HCBs) at zero temperature. This phenomenon arises due to the off-diagonal long-ran…