Work

Entanglement Purification of Gaussian Continuous Variable Quantum States

Year: 2000

Type: article

Abstract: We describe an entanglement purification protocol to generate maximally entangled states with high efficiencies from two-mode squeezed states or from mixed Gaussian continuous entangled states. The protocol relies on a local quantum nondemolition measurement of the total excitation number of several continuous variable entangled pairs. We propose an optical scheme to do this kind of measurement using cavity enhanced cross-Kerr interactions.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.84.4002

Authors: Lu-Ming Duan, G. Giedke, J. I. Cirac, P. Zoller

Institutions: University of Science and Technology of China, Universität Innsbruck

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

OpenAlex ID: W2017263873

FWCI: 12.64

Cites: 19

Cited by: 199

Related to: 10