On the biphoton wavelength

Ribeiro, P. H. Souto

doi:10.1590/s0103-97332001000300021

Cited by 8 publications

(11 citation statements)

References 12 publications

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“…13b. Additional experiments reporting the observation of the de Broglie wavelength of two or more photons have been reported [60,61,62,63,64,65]. The increase in spatial frequency in these experiments is equivalent to an increase in resolution, which may lead to interesting applications in optical lithography.…”

Section: The De Broglie Wavelength Of a Two-photon Wave Packetmentioning

confidence: 97%

Spatial correlations in parametric down-conversion

et al. 2010

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The transverse spatial effects observed in photon pairs produced by parametric down-conversion provide a robust and fertile testing ground for studies of quantum mechanics, non-classical states of light, correlated imaging and quantum information. Over the last 20 years there has been much progress in this area, ranging from technical advances and applications such as quantum imaging to investigations of fundamental aspects of quantum physics such as complementarity relations, Bell's inequality violation and entanglement. The field has grown immensely: a quick search shows that there are hundreds of papers published in this field, some with hundreds of citations. The objective of this article is to review the building blocks and major theoretical and experimental advances in the field, along with some possible technical applications and connections to other research areas.

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Section: The De Broglie Wavelength Of a Two-photon Wave Packetmentioning

confidence: 97%

Spatial correlations in parametric down-conversion

et al. 2010

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“…This is a consequence of the coupling between polarization and transverse degrees of freedom of the twin photons. As the interference is conditioned to the detection at the idler side, the phase, visibility and even the length of the oscillations obtained by the displacement of the signal detector, depend on the idler detection properties [12]. In the case presented above, the idler detection properties were kept fixed, so that only the polarization state was changed.…”

Section: Discussionmentioning

confidence: 99%

“…[13] that allows generating spatial patterns without diffracting masks and to prepare a state which is simultaneously entangled in polarization and transverse momentum with controlled degree of entanglement. The entanglement in transverse momentum leads to a quantum interference, that can be revealed through conditional spatial patterns [12]. This interference pattern have been demonstrated to be useful to measure the degree of entanglement in polarization [13] and to manipulate the entanglement in transverse momentum through the polarization [14].…”

Section: Introductionmentioning

confidence: 99%

Control of conditional pattern with polarization entanglement

Caetano

Monken

Ribeiro

2003

Optics Communications

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Conditional interference patterns can be obtained with twin photons from spontaneous parametric down-conversion and the phase of the pattern can be controlled by the relative transverse position of the signal and idler detectors. Using a configuration that produces entangled photons in both polarization and transverse momentum we report on the control of the conditional patterns by acting on the polarization degree of freedom. 42.50.Dv, 42.65.Lm

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“…1 where the phase φ depends on the pump phase at each crystal and on the optical path from crystals to detectors [7,8]. This is a maximally entangled state, as both crystals are equally pumped and have equal probabilities to produce a pair of photons.…”

Section: Distillation Schemementioning

confidence: 99%

“…We call it position entanglement. In order to be able to detect the quantum interference arising from the entanglement in this degree of freedom, it is necessary to arrange the crystals in a suitable configuration, so that the phase difference between the states of the superposition can be varied [7,8]. In the experiments of Refs.…”

Section: Introductionmentioning

confidence: 99%

Quantum distillation of position entanglement with the polarization degrees of freedom

Caetano

Ribeiro

2002

Optics Communications

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Sources of entangled photon pairs using two parametric down-converters are capable of generating interchangeable entanglement in two different degrees of freedom. The connection between these two degrees of freedom allows the control of the entanglement properties of one, by acting on the other degree of freedom. We demonstrate experimentally, the quantum distillation of the position entanglement using polarization analyzers.

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On the biphoton wavelength

Cited by 8 publications

References 12 publications

Spatial correlations in parametric down-conversion

Spatial correlations in parametric down-conversion

Control of conditional pattern with polarization entanglement

Quantum distillation of position entanglement with the polarization degrees of freedom

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