Work

Multipartite entanglement and high-precision metrology

Year: 2012

Type: article

Abstract: We present several entanglement criteria in terms of the quantum Fisher information that help to relate various forms of multipartite entanglement to the sensitivity of phase estimation. We show that genuine multipartite entanglement is necessary to reach the maximum sensitivity in some very general metrological tasks using a two-arm linear interferometer. We also show that it is needed to reach the maximum average sensitivity in a certain combination of such metrological tasks.

Source: Physical Review A

DOI: 10.1103/physreva.85.022322

Author: Géza Tóth

Institutions: Ikerbasque, University of the Basque Country, Institute for Solid State Physics and Optics, Hungarian Academy of Sciences

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2085200623

FWCI: 15.13

Cites: 63

Cited by: 559

Related to: 10