Journal
PHYSICAL REVIEW B
Volume 103, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.103.064309
Keywords
-
Funding
- National Natural Science Foundation of China [12074280, 11674238]
- ERC [694544 OMNES]
- Slovenian Research Agency [P1-0402]
- [ID2019-109007GA-I00]
Ask authors/readers for more resources
Quantum chaos imposes universal spectral signatures on the thermofield dynamics of many-body systems in isolation. The interplay between quantum chaos and information loss is determined by the competition among characteristic times of decoherence, dip, and plateau. Energy dephasing gradually suppresses quantum noise fluctuations and delays the appearance of the dip associated with spectral correlations.
Quantum chaos imposes universal spectral signatures that govern the thermofield dynamics of a many-body system in isolation. The fidelity between the initial and time-evolving thermofield double states exhibits as a function of time a decay, dip, ramp, and plateau. Sources of decoherence give rise to a nonunitary evolution and result in information loss. Energy dephasing gradually suppresses quantum noise fluctuations and the dip associated with spectral correlations. Decoherence further delays the appearance of the dip and shortens the span of the linear ramp associated with chaotic behavior. The interplay between signatures of quantum chaos and information loss is determined by the competition among the decoherence, dip, and plateau characteristic times, as demonstrated in the stochastic Sachdev-Ye-Kitaev model.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available