Publication Date:
2016-07-19
Description:
Author(s): Dirk-Sören Lühmann In one-dimensional systems a twisted superfluid phase is found which is induced by a spontaneous breaking of the time-reversal symmetry. Using the density-matrix renormalization group allows us to show that the excitation energy gap closes exponentially causing a quasidegenerate ground state. The tw… [Phys. Rev. A 94, 011603(R)] Published Mon Jul 18, 2016
Keywords:
Matter waves and collective properties of cold atoms and molecules
Print ISSN:
1050-2947
Electronic ISSN:
1094-1622
Topics:
Physics