BIP! Finder - Dephasing enhanced spin transport in the ergodic phase of a many‐body localizable system

2016 • Dephasing enhanced spin transport in the ergodic phase of a many‐body localizable system

Authors: J. J. Mendoza-Arenas; John Goold; Stephen R. Clark; Marko Žnidarič

Venue: Annalen der Physik

Type: Publication

Abstract: We study high temperature spin transport in a disordered Heisenberg chain in the ergodic regime when bulk dephasing is present. We find that while dephasing always renders the transport diffusive, there is nonetheless a remnant of the diffusive to sub‐diffusive transition found in a system without dephasing manifested in the behaviour of the diffusion constant with the dephasing strength. By studying finite‐size effects we show numerically and theoretically that this feature is caused by the competition between large crossover length scales... (read more)

Impact:

1.5705208E-8 3.7216144E-9 33 14

/ Attention: 0 19

Topics: Condensed matter physics Statistical physics

DOI: 10.1002/andp.201600298

External links: Crossref OpenAIRE

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