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Quantum entanglement growth under random unitary dynamics

Abstract:

Characterizing how entanglement grows with time in a many-body system, for example, after a quantum quench, is a key problem in nonequilibrium quantum physics. We study this problem for the case of random unitary dynamics, representing either Hamiltonian evolution with time-dependent noise or evolution by a random quantum circuit. Our results reveal a universal structure behind noisy entanglement growth, and also provide simple new heuristics for the “entanglement tsunami” in Hamiltonian syst...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevX.7.031016

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
More from this funder
Funding agency for:
Nahum, A
Grant:
EP/N028678/1
More from this funder
Funding agency for:
Nahum, A
Grant:
EP/N028678/1
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review X Journal website
Volume:
7
Issue:
3
Article number:
031016
Publication date:
2017-07-24
Acceptance date:
2016-08-24
DOI:
ISSN:
2160-3308
Source identifiers:
702149
Pubs id:
pubs:702149
UUID:
uuid:b1ded37e-e27b-4df8-951f-ef337f4adafa
Local pid:
pubs:702149
Deposit date:
2018-05-05

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