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cond-mat.str-el2018
Quench dynamics of quantum spin models with flat bands of excitations
Raphaël Menu, Tommaso Roscilde
We investigate the unitary evolution following a quantum quench in quantum spin models possessing a (nearly) flat band in the linear excitation spectrum. Inspired by the perspectiv…
cond-mat.str-el2018
Reconstructing the quantum critical fan of strongly correlated systems via quantum correlations
Irénée Frérot, Tommaso Roscilde
Albeit occurring at zero temperature, quantum critical phenomena are known to have a huge impact on the finite-temperature phase diagram of strongly correlated systems -- an aspect…