188 citations · 927 across the 34 of their papers we have counts for
Showing 2005 · cond-mat.otherShow all
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cond-mat.other2005
Images of a Bose-Einstein condensate in position and momentum space
Jacek Dziarmaga, Krzysztof Sacha
In the Bogoliubov theory a condensate initially prepared in its ground state described by stationary Bogoliubov vacuum and later perturbed by a time-dependent potential or interact…
cond-mat.other2005
N-particle Bogoliubov vacuum state
Jacek Dziarmaga, Krzysztof Sacha
We consider the Bogoliubov vacuum state in the number-conserving Bogoliubov theory proposed by Castin and Dum [Phys. Rev. A 57, 3008 (1998)]. We show that in the particle represent…
cond-mat.other2005
Dynamics of quantum phase transition: exact solution in quantum Ising model
Jacek Dziarmaga
Quantum Ising model is an exactly solvable model of quantum phase transition. This paper gives an exact solution when the system is driven through the critical point at finite rate…