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Titel:

Sub-ballistic Growth of Rényi Entropies due to Diffusion

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Rakovszky, Tibor; Pollmann, Frank; von Keyserlingk, C. W.
Abstract:
We investigate the dynamics of quantum entanglement after a global quench and uncover a qualitative difference between the behavior of the von Neumann entropy and higher Rényi entropies. We argue that the latter generically grow sub-ballistically, as ∝√t, in systems with diffusive transport. We provide strong evidence for this in both a U(1) symmetric random circuit model and in a paradigmatic nonintegrable spin chain, where energy is the sole conserved quantity. We interpret our results as a co...     »
Zeitschriftentitel:
Physical Review Letters 2019-05
Jahr:
2019
Band / Volume:
122
Heft / Issue:
25
Volltext / DOI:
doi:10.1103/physrevlett.122.250602
Verlag / Institution:
American Physical Society (APS)
E-ISSN:
0031-90071079-7114
Publikationsdatum:
25.06.2019
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