期刊
PHYSICAL REVIEW LETTERS
卷 113, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.147204
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资金
- Austrian Science Fund (FWF) [J 3361-N20]
- NSERC grant
- Sloan Research Fellowship
- High Performance Computing Center (PICSciE) at Princeton University
- Government of Canada
- Province of Ontario
- Harvard Quantum Optics Center
- Harvard-MIT CUA
- DARPA OLE program
- AFOSR Quantum Simulation MURI
- ARO-MURI on Atomtronics
- ARO-MURI Quism program
- Austrian Science Fund (FWF) [J 3361] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969816] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1125846] Funding Source: National Science Foundation
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-lawdecay reflecting its slow growth of entanglement. We find that this power-lawdecay 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.
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