Quantum phases and dynamics of geometric phase in a quantum spin chain system under linear quench

Details Quantum phases and dynamics of geometric phase in a quantum spin chain system under linear quench Quantum phases and dynamics of geometric phase in a quantum spin chain system under linear quench

2011-08-17

arxiv.org/abs/1108.3406v2

Physics

Quantum Physics

9 pages, 3 figures, one reference added. arXiv admin note: significant text overlap with arXiv:0908.3299

Scientific paper

We study the quantum phases of anisotropic XY spin chain system in presence and absence of adiabatic quench. A connection between geometric phase and criticality is established from the dynamical behaviour of the geometric phase for a quench induced quantum phase transition in a quantum spin chain. We predict XX criticality associated with a sequence of non-contractible geometric phases.

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