Work

Detecting entanglement with Jarzynski’s equality

Year: 2010

Type: article

Abstract: We present a method for detecting the entanglement of a state using nonequilibrium processes. A comparison of relative entropies allows us to construct an entanglement witness. The relative entropy can further be related to the quantum Jarzynski equality, allowing nonequilibrium work to be used in entanglement detection. To exemplify our results, we consider two different spin chains.

Source: Physical Review A

DOI: 10.1103/physreva.81.062303

Authors: Jenny Hide, Vlatko Vedral

Institutions: University of Leeds, Centre for Quantum Technologies, National University of Singapore, University of Oxford

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2065125728

FWCI: 0.679

Cites: 20

Cited by: 6

Related to: 10