Interferometric probes of many-body localization.

@article{Serbyn2014InterferometricPO,
  title={Interferometric probes of many-body localization.},
  author={Maksym Serbyn and Michael Knap and Sarang Gopalakrishnan and Zlatko Papi{\'c} and Norman Y. Yao and Christopher R. Laumann and Dmitry A. Abanin and Mikhail D. Lukin and Eugene A. Demler},
  journal={Physical review letters},
  year={2014},
  volume={113 14},
  pages={147204}
}
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… CONTINUE READING

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