| ID:
373736.0,
MPI für Gravitationsphysik / Laser Interferometry & Gravitational Wave Astronomy |
| Observation of Entanglement between Two Light Beams Spanning an Octave in Optical Frequency |
| Authors: | Grosse, Nicolai B.; Assad, Syed; Mehmet, Moritz; Schnabel, Roman; Symul, Thomas; Ping, Koy Lam |
| Date of Publication (YYYY-MM-DD): | 2008-06 |
| Title of Journal: | Physical Review Letters |
| Volume: | 100 |
| Issue / Number: | 24 |
| Sequence Number of Article: | 243601 |
| Review Status: | not specified |
| Audience: | Not Specified |
| Abstract / Description: | We have experimentally demonstrated how two beams of light separated by an octave in frequency can become entangled after their interaction in a chi(2) nonlinear medium. The entangler was a nonlinear optical resonator that was strongly driven by coherent light at the fundamental and second-harmonic wavelengths. An interconversion between the fields created quantum correlations in the amplitude and phase quadratures, which were measured by two independent homodyne detectors. Analysis of the resulting correlation matrix revealed a wave function inseparability of 0.74(1)<1, thereby satisfying the criterion of entanglement. |
| External Publication Status: | published |
| Document Type: | Article |
| Communicated by: | Karsten Danzmann |
| Affiliations: | MPI für Gravitationsphysik/Teilinstitut Hannover
MPI für Gravitationsphysik/Laser Interferometry & Gravitational Wave Astronomy
|
| Identifiers: | ISSN:1079-7114
DOI:10.1103/PhysRevLett.100.243601 |
| Full Text: |
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| prl100-243601.pdf [902,00 Kb] [Comment:Online Journal] |
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