Time-gated Einstein-Podolsky-Rosen correlation

Journal Article · Thu Dec 14 23:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.060101· OSTI ID:20976404

Takei, Nobuyuki; Lee, Noriyuki; Furusawa, Akira ^[1]; Moriyama, Daiki ^[1]; Neergaard-Nielsen, J S ^[1]

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1. Department of Applied Physics, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

We experimentally demonstrate the creation and characterization of Einstein-Podolsky-Rosen (EPR) correlation between optical beams in a time-gated fashion. The correlated beams are created with two independent continuous-wave optical parametric oscillators and a half beam splitter. We define the temporal modes using a square temporal filter with duration T and make time-resolved measurements on the generated state. We observe correlations between the relevant conjugate variables in the temporal mode which correspond to EPR correlation. Our scheme is extendable to continuous-variable quantum teleportation of a non-Gaussian state defined in the time domain such as a superposition of coherent states.

• OSTI ID: 20976404
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BEAM SPLITTING
BEAMS
CORRELATIONS
OPTICAL FILTERS
OPTICS
PARAMETRIC OSCILLATORS
SYNCHRONIZATION
TIME DEPENDENCE
TIME RESOLUTION
WAVE PROPAGATION