Work

Linear optics and projective measurements alone suffice to create large-photon-number path entanglement

Year: 2002

Type: article

Abstract: We propose a method for preparing maximal path entanglement with a definite photon-number N, larger than two, using projective measurements. In contrast with the previously known schemes, our method uses only linear optics. Specifically, we exhibit a way of generating four-photon, path-entangled states of the form $|4,0〉+|0,4〉,$ using only four beam splitters and two detectors. These states are of major interest as a resource for quantum interferometric sensors as well as for optical quantum lithography and quantum holography.

Source: Physical Review A

DOI: 10.1103/physreva.65.030101

Authors: Hwang Lee, Pieter Kok, Nicolas J. Cerf, Jonathan P. Dowling

Institutions: California Institute of Technology, Jet Propulsion Laboratory, Université Libre de Bruxelles

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Aeronautics and Space Administration, Agricultural Research Development Agency, Office of Naval Research

OpenAlex ID: W2116459150

FWCI: 9.781

Cites: 19

Cited by: 134

Related to: 8