2022
DOI: 10.1103/physrevb.105.214306
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Exotic correlation spread in free-fermionic states with initial patterns

Abstract: We describe a relation between the light-cone velocities after a quantum quench and the internal structure of the initial state, in the particular case of free fermions on a chain at half filling. The considered states include short-range valence bond solids, i.e., dimerized states, and long-range states such as the rainbow. In all the considered cases the correlations spread into one or a few well-defined light cones, each of them presenting an effective velocity which can be read from the form factor. Intere… Show more

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Cited by 3 publications
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