| Issue |
Europhys. Lett.
Volume 46, Number 4, May II 1999
|
|
|---|---|---|
| Page(s) | 461 - 466 | |
| Section | Electromagnetism, optics, acoustic, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i1999-00285-3 | |
| Published online | 01 September 2002 | |
Spatial Einstein-Podolsky-Rosen aspects in the optical parametric oscillator below threshold
1
Istituto Nazionale per la Fisica della Materia,
Università degli Studi di Milano
via Celoria 16, I-20133 Milano, Italy
2
Abteilung für Quantenphysik, Universität Ulm - D-89069 Ulm, Germany
Received:
10
November
1998
Accepted:
9
March
1999
We consider a degenerate and transversally extended optical parametric oscillator, and predict the presence of a "spatial EPR paradox” that arises from the entanglement of the photon pairs emitted in the parametric down-conversion process. The effect emerges for reasonable values of the frequency spacing among adjacent transverse modes and of the waist of the pump beam.
PACS: 42.50.Dv – Nonclassical field states; squeezed, antibunched, and sub-Poissonian states; operational definitions of the phase of the field; phase measurements / 03.65.Bz – Foundations, theory of measurement, miscellaneous theories (including Aharonov-Bohm effect, Bell inequalities, Berry's phase) / 42.65.Ky – Harmonic generation, frequency conversion
© EDP Sciences, 1999
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