Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Nonlinear Optics

Role of Phase Matching on the Generation of Squeezed States of Light with Four-Wave Mixing

Alberto M. Marino, Matthew T. Turnbull, Plamen G. Petrov, Christopher S. Embrey, Vincent Boyer

Published Jan 1, 2013• 0 citations
Publisher

Abstract

We perform theoretical and experimental studies of the effect of phase matching on the generation of entangled twin beams with four-wave mixing. We find that it plays a critical role on the optimum parameters for the process.
DOI
10.1364/nlo.2013.nw1a.4

Related papers

Role of Phase Matching on the Generation of Squeezed States of Light with Four-Wave Mixing

Alberto M. Marino, Matthew T. Turnbull, Plamen G. Petrov +2 more

We perform theoretical and experimental studies of the effect of phase matching on the generation of entangled twin beams with four-wave mixing. We find that it plays a critical role on the optimum parameters for the process.

The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting•Jan 1, 2013•0 citations

Role of the phase-matching condition in nondegenerate four-wave mixing in hot vapors for the generation of squeezed states of light

Matthew T. Turnbull, Plamen G. Petrov, Christopher S. Embrey +2 more

Nondegenerate forward four-wave mixing in hot atomic vapors has been shown to produce strong quantum correlations between twin beams of light [McCormick et al., Opt. Lett. 32, 178 (2007)], in a configuration which minimizes losses by absorption. In this paper, we look at the role of the phase-matching condition in the trade-off that occurs between the efficiency of the nonlinear process and the absorption of the twin beams. To this effect, we develop a semiclassical model by deriving the atomic susceptibilities in the relevant double-$\ensuremath{\Lambda}$ configuration and by solving the classical propagation of the twin-beam fields for parameters close to those found in typical experiments. These theoretical results are confirmed by a simple experimental study of the nonlinear gain experienced by the twin beams as a function of the phase mismatch. The model shows that the amount of phase mismatch is key to the realization of the physical conditions in which the absorption of the twin beams is minimized while the cross coupling between the twin beams is maintained at the level required for the generation of strong quantum correlations. The optimum is reached when the four-wave mixing process is not phase matched for fully resonant four-wave mixing.

arXiv:1303.7187•Physical Review A•Sep 26, 2013•75 citations

Generation of squeezed states of light

Alistair S. Lane, M. D. Reid, Craig M. Savage +1 more

A review of the current status of squeezed state generation and an anaysis of squeezing in nondegenerate four-wave mixing in two-level atoms are given. The case of intracavity cavity four-wave mixing with a noncollinear pump is analyzed and compared to the recent experiments of Slusher et at.1 For comparison the cases of a collinear pump and perfect phase matching are considered. The conditions for optimum squeezing are calculated.

•Jun 9, 1986•0 citations

Tailoring spatial quantum correlations for quantum information

Alberto M. Marino

The spatial degree of freedom of entangled beams of light offers unique opportunities for quantum information due to its large dimensionality. Here, we show that it is possible to tailor the distribution of the spatial quantum correlations in entangled twin beams by taking advantage of the phase matching properties of four-wave mixing. This control can enable high-capacity quantum channels and quantum-enhanced spatially resolved sensing and imaging.

Optical and Quantum Sensing and Precision Metrology II•Mar 13, 2024•0 citations

Generation of squeezed states and twin beams via non-degenerate four-wave mixing in a Λ system

M. S. Shahriar, Philip Hemmer

Optics Communications•Dec 1, 1998•26 citations

Spatial Properties of Entangled Twin Beams

Alberto M. Marino

We use four-wave mixing in an atomic system to generate twin beams and study the effect of the size and profile of the pump on the minimum size of the spatial correlations, or coherence area. Article not available.

Latin America Optics and Photonics Conference•Jan 1, 2014•0 citations
Nondegenerate forward four-wave mixing in hot atomic vapors has been shown to produce strong quantum correlations between twin beams of light [McCormick et al., Opt. Lett. 32, 178 (2007)], in a configuration which minimizes losses by absorption. In this paper, we look at the role of the phase-matching condition in the trade-off that occurs between the efficiency of the nonlinear process and the absorption of the twin beams. To this effect, we develop a semiclassical model by deriving the atomic susceptibilities in the relevant double-$\ensuremath{\Lambda}$ configuration and by solving the classical propagation of the twin-beam fields for parameters close to those found in typical experiments. These theoretical results are confirmed by a simple experimental study of the nonlinear gain experienced by the twin beams as a function of the phase mismatch. The model shows that the amount of phase mismatch is key to the realization of the physical conditions in which the absorption of the twin beams is minimized while the cross coupling between the twin beams is maintained at the level required for the generation of strong quantum correlations. The optimum is reached when the four-wave mixing process is not phase matched for fully resonant four-wave mixing.