Interferometric Probes of Many-Body Localization
Name
PhysRevLett.113.147204.pdf
Size
531 KB
Format
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Checksum (MD5)
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Author(s)
Serbyn, Maksym
Knap, M.
Gopalakrishnan, S.
Papic, Z.
Yao, N. Y.
Laumann, C. R.
Abanin, Dmitry A.
Lukin, Mikhail D.
Demler, Eugene
Date Issued
October 2014
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.113.147204
