Return amplitude after a quantum quench in the XY chain
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DOI: 10.1088/1742-5468/ab3413
Abstract: We determine an exact formula for the transition amplitude between any two arbitrary eigenstates of the local $z$-magnetization operators in the quantum XY chain. We further use this formula to obtain an analytical expression for… read more here.
Keywords: chain; quench chain; amplitude quantum; return amplitude ... See more keywords