Work

Environment-induced entanglement with a single photon

Year: 2009

Type: article

Abstract: We propose an all-optical setup, which couples different degrees of freedom of a single photon, to investigate entanglement generation by a common environment. The two qubits are represented by the photon polarization and Hermite-Gauss transverse modes, while the environment corresponds to the photon path. For an initially two-qubit separable state, the increase of entanglement is analyzed as the probability of an environment-induced transition ranges from 0 to 1. An entanglement witness that is invariant throughout the evolution of the system yields a direct measurement of the concurrence of the two-qubit state.

Source: Physical Review A

DOI: 10.1103/physreva.80.042327

Authors: M. Hor-Meyll, A. Auyuanet, C. V. S. Borges, A. Aragão, J. A. O. Huguenin, A. Z. Khoury, L. Davidovich

Institutions: Universidade Federal do Rio de Janeiro, Universidade Federal Fluminense

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funder: Conselho Nacional de Desenvolvimento Científico e Tecnológico

OpenAlex ID: W2014895092

FWCI: 2.519

Cites: 81

Cited by: 38

Related to: 10