Interferometric Probes of Many-Body Localization
Author(s)
Serbyn, Maksym; Knap, M.; Gopalakrishnan, S.; Papic, Z.; Yao, N. Y.; Laumann, C. R.; Abanin, Dmitry A.; Lukin, Mikhail D.; Demler, Eugene; ... Show more Show less
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We propose a method for detecting many-body localization (MBL) in disordered spin systems. The method involves pulsed coherent spin manipulations that probe the dephasing of a given spin due to its entanglement with a set of distant spins. It allows one to distinguish the MBL phase from a noninteracting localized phase and a delocalized phase. In particular, we show that for a properly chosen pulse sequence the MBL phase exhibits a characteristic power-law decay reflecting its slow growth of entanglement. We find that this power-law decay is robust with respect to thermal and disorder averaging, provide numerical simulations supporting our results, and discuss possible experimental realizations in solid-state and cold-atom systems.
Date issued
2014-10Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Serbyn, M., et al. "Interferometric Probes of Many-Body Localization." Phys. Rev. Lett. 113, 147204 (October 2014). © 2014 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114