Work

Entangling efficiency of linear-optical quantum gates

Year: 2012

Type: article

Abstract: We propose a measure of the nonclassicality of quantum gates which is particularly suitable for probabilistic devices. This measure enables to compare deterministic devices which prepare entangled states with a low amount of entanglement with probabilistic devices which generate highly entangled states but which fail sometimes. We provide examples demonstrating the advantages of this measure over the so-far employed entangling power. The experimentally determined entangling efficiency of a tunable linear-optical controlled-phase gate is presented to highlight the practical aspects of this measure.

Source: Physical Review A

DOI: 10.1103/physreva.86.032321

Authors: Karel Lemr, Antonín Černoch, Jan Soubusta, Miloslav Dušek

Institutions: Czech Academy of Sciences, FZU - Institute of Physics of the Czech Academy of Sciences, Palacký University Olomouc

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2084616614

FWCI: 1.578

Cites: 24

Cited by: 7

Related to: 10