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arxiv: 1108.3406 · v2 · pith:C6GQKX3Ynew · submitted 2011-08-17 · 🪐 quant-ph · cond-mat.str-el

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

classification 🪐 quant-ph cond-mat.str-el
keywords quantumgeometricphasechainphasesquenchspincriticality
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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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