Parametric downconversion experiments in the Wigner representation

Casado, Alberto; Marshall, Trevor W.; Santos, Emilio

doi:10.1364/josab.14.000494

Cited by 55 publications

(92 citation statements)

References 10 publications

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“…Marshall's experimental suggestions involves work he has advanced with colleagues, particularly E. Santos, in "stochastic optics," aiming in particular at a local model explanation of the Bell inequalities [60], [61]. At the end of the 1990s, Marshall developed with colleagues a local physical explanation of entanglement involving a nonlinear optical process often called spontaneous parametric down conversion [62], [63], [64], [65], [66], [67]. This work led them to the prediction of a new phenomena, still to be tested for, involving a natural explanation in terms of unquantized light and local quantities that they have termed spontaneous parametric up conversion [68], [69], [70], [71].…”

Section: Physical Ideas Behind Sedmentioning

confidence: 99%

Simulation Results Related to Stochastic Electrodynamics

Cole¹

2006

AIP Conference Proceedings

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Abstract. Stochastic electrodynamics (SED) is a classical theory of nature advanced signi…cantly in the 1960s by Trevor Marshall and Timothy Boyer. Since then, SED has continued to be investigated by a very small group of physicists. Early investigations seemed promising, as SED was shown to agree with quantum mechanics (QM) and quantum electrodynamics (QED) for a few linear systems. In particular, agreement was found for the simple harmonic electric dipole oscillator, physical systems composed of such oscillators and interacting electromagnetically, and free electromagnetic …elds with boundary conditions imposed such as would enter into Casimir-type force calculations. These results were found to hold for both zero-point and non-zero temperature conditions. However, by the late 1970s and then into the early 1980s, researchers found that when investigating nonlinear systems, SED did not appear to provide agreement with the predictions of QM and QED. A proposed reason for this disagreement was advocated by Boyer and Cole that such nonlinear systems are not su¢ ciently realistic for describing atomic and molecular physical systems, which should be fundamentally based on the Coulombic binding potential. Analytic attempts on these systems have proven to be most di¢ cult. Consequently, in recent years more attention has been placed on numerically simulating the interaction of a classical electron in a Coulombic binding potential, with classical electromagnetic radiation acting on the classical electron. Good agreement was found for this numerical simulation work as compared with predictions from QM. Here this worked is reviewed and possible directions are discussed. Recent simulation work involving subharmonic resonances for the classical hydrogen atom is also discussed; some of the properties of these subharmonic resonances seem quite interesting and unusual.

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Section: Physical Ideas Behind Sedmentioning

confidence: 99%

Simulation Results Related to Stochastic Electrodynamics

Cole¹

2006

AIP Conference Proceedings

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“…This model represents the completion of series of papers where this scheme has been developed [15]. The main idea is that the probability distribution for the hidden variable is given by the Wigner function, which is positive for photons experiments.…”

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confidence: 99%

A first test of Wigner function local realistic model

et al. 2002

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“…These authors have presented a local realistic model addressed to be compatible with all the available experiments performed for testing local realism. This model represents the completion of series of papers where this scheme has been developed [32]. The main idea is that the probability distribution for the hidden variable is given by the Wigner function, which is positive for photons experiments.…”

Section: Our Sourcementioning

confidence: 99%

Review of studies about quantum communication and foundations of quantum mechanics at IENGF

Genovese

2004

SPIE Proceedings

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In this proceeding I review the main experimental results obtained at IENGF (Turin, Italy) by using a source of entangled photons realised superposing, by means of an optical condenser, type I PDC produced in two crystals. More in details, after having described how this source is built, I will report on a Bell inequalities test obtained with it. Then I describe a recent innovative double slit experiment realised with a similar scheme. Finally, I hint about future developments of this activity at IENGF and in particular about a quantum cryptographic scheme in d=4.

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Parametric downconversion experiments in the Wigner representation

Cited by 55 publications

References 10 publications

Simulation Results Related to Stochastic Electrodynamics

Simulation Results Related to Stochastic Electrodynamics

A first test of Wigner function local realistic model

Review of studies about quantum communication and foundations of quantum mechanics at IENGF

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