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cond-mat.quant-gas2012★ 18 cited
The pinning quantum phase transition in a Tonks Girardeau gas: diagnostics by ground state fidelity and the Loschmidt echo
K. Lelas, T. Ševa, H. Buljan +1
We study the pinning quantum phase transition in a Tonks-Girardeau gas, both in equilibrium and out-of-equilibrium, using the ground state fidelity and the Loschmidt echo as diagno…
cond-mat.quant-gas2011★ 11 cited
Loschmidt echo in one-dimensional interacting Bose gases
K. Lelas, T. Ševa, H. Buljan
We explore Loschmidt echo in two regimes of one-dimensional (1D) interacting Bose gases: the strongly interacting Tonks-Girardeau (TG) regime, and the weakly-interacting mean-field…