1992
DOI: 10.1209/0295-5075/20/7/001
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Experimental Test of Bell's Inequality for Energy and Time

Abstract: An interference experiment with photon pairs produced by degenerate parametric fluorescence is performed. The pairs are split and directed to two spatially separated Michelson interferometers. The interferometers are set to path differences which cause time delays far exceeding the coherence time of the light. We investigate photon coincidences between the output arms of the interferometers and observe nonlocal fourth-order interferences in the absence of second-order interferences. Maximum visibilities up to … Show more

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Cited by 198 publications
(84 citation statements)
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References 30 publications
(3 reference statements)
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“…In fact, this source also produces frequency entangled [245][246][247] and both linear [248,249] and orbital angular momentum entangled [250][251][252][253][254][255] photon pairs. In our case, we will use photon pairs produced by SPDC to propose a novel method to swap linear momentum entanglement into polarization entanglement by means of CR.…”
Section: Introductionmentioning
confidence: 99%
“…In fact, this source also produces frequency entangled [245][246][247] and both linear [248,249] and orbital angular momentum entangled [250][251][252][253][254][255] photon pairs. In our case, we will use photon pairs produced by SPDC to propose a novel method to swap linear momentum entanglement into polarization entanglement by means of CR.…”
Section: Introductionmentioning
confidence: 99%
“…Typically, this process is used in two different regimes distinguished by the properties of the pump source. Initial experiments on SPDC [2,3,4] and applications for quantum key distribution [5] make use of a continuous pump light (cw), where entangled states can be prepared with high brightness and fidelity in various degrees of freedom [6,7].…”
Section: Introductionmentioning
confidence: 99%
“…Erwähnt seien die Experimente der Gruppe um Alain Aspect zu Beginn der achtziger Jahre an der Universität Paris/Orsay [12], der Gruppe um Werner Martienssen an der Universität Frankfurt/M. zu Beginn der neunziger Jahre [13], und, in jüngerer Zeit, die Arbeiten der Gruppe um Nicolas Gisin [14] an der Universität Genf und um Anton Zeilinger von der Universität Innsbruck (jetzt in Wien) [15]. Dieses Jahr gelang der Gruppe von Dave Wineland vom National Institute of Standards and Technology (NIST) in Boulder sogar ein Test mit massiven Teilchen [16].…”
Section: Komplementarität Und Nichtunterscheidbarkeitunclassified
“…Entsprechende Laborexperimente wurden zum ersten Mal 1992 von Jürgen Brendel [13] in der Frankfurter Gruppe sowie fast gleichzeitig von Raymond Chiao an der Universität von Kalifornien in Berkeley durchgeführt [19].…”
Section: Test Der Nichtlokalität Mit Energie-zeitverschränkten Photonenunclassified
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