Generation of pure-state single-photon wavepackets by conditional preparation based on spontaneous parametric downconversion

A. B. U'Ren; C. Silberhorn; K. Banaszek; I. A. Walmsley; R. Erdmann; W. P. Grice; M. G. Raymer

Generation of pure-state single-photon wavepackets by conditional preparation based on spontaneous parametric downconversion

A. B. U'Ren, C. Silberhorn, K. Banaszek, I. A. Walmsley, R. Erdmann, W. P. Grice, M. G. Raymer

Quantum Communications and Networking

Research output: Contribution to journal › Article › peer-review

226 Scopus citations

Abstract

We study the conditional preparation of single photons based on parametric downconversion, where the detection of one photon from a given pair heralds the existence of a single photon in the conjugate mode. We derive conditions on the modal characteristics of the photon pairs, which ensure that the conditionally prepared single photons are quantum-mechanically pure. We propose specific experimental techniques that yield photon pairs ideally suited for single-photon conditional preparation.

Original language	English
Pages (from-to)	146-161
Number of pages	16
Journal	Laser Physics
Volume	15
Issue number	1
State	Published - Jan 2005

Cite this

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title = "Generation of pure-state single-photon wavepackets by conditional preparation based on spontaneous parametric downconversion",

abstract = "We study the conditional preparation of single photons based on parametric downconversion, where the detection of one photon from a given pair heralds the existence of a single photon in the conjugate mode. We derive conditions on the modal characteristics of the photon pairs, which ensure that the conditionally prepared single photons are quantum-mechanically pure. We propose specific experimental techniques that yield photon pairs ideally suited for single-photon conditional preparation.",

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AU - U'Ren, A. B.

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AU - Banaszek, K.

AU - Walmsley, I. A.

AU - Erdmann, R.

AU - Grice, W. P.

AU - Raymer, M. G.

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AB - We study the conditional preparation of single photons based on parametric downconversion, where the detection of one photon from a given pair heralds the existence of a single photon in the conjugate mode. We derive conditions on the modal characteristics of the photon pairs, which ensure that the conditionally prepared single photons are quantum-mechanically pure. We propose specific experimental techniques that yield photon pairs ideally suited for single-photon conditional preparation.

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Generation of pure-state single-photon wavepackets by conditional preparation based on spontaneous parametric downconversion

Abstract

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