Spatiotemporal Entanglement in a Noncollinear Optical Parametric Amplifier

La Volpe, L.; De, S.; Kolobov, M. I.; Parigi, V.; Fabre, C.; Treps, N.; Horoshko, D. B.

Document type :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1103/PhysRevApplied.15.024016

Title :

Spatiotemporal Entanglement in a Noncollinear Optical Parametric Amplifier

Author(s) :

La Volpe, L. [Auteur]
De, S. [Auteur]
Kolobov, M. I. [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Parigi, V. [Auteur]
Laboratoire Kastler Brossel [LKB (Jussieu)]
Fabre, C. [Auteur]
Laboratoire Kastler Brossel [LKB (Jussieu)]
Treps, N. [Auteur]
Laboratoire Kastler Brossel [LKB (Jussieu)]
Horoshko, D. B. [Auteur]

Journal title :

Physical Review Applied

Publication date :

2021

HAL domain(s) :

Physique [physics]/Physique Quantique [quant-ph]

English abstract : [en]

We theoretically investigate the generation of two entangled beams of light in the process of single-pass type-I noncollinear frequency-degenerate parametric down-conversion with an ultrashort pulsed pump. We find the ...
Show more >We theoretically investigate the generation of two entangled beams of light in the process of single-pass type-I noncollinear frequency-degenerate parametric down-conversion with an ultrashort pulsed pump. We find the spatiotemporal squeezing eigenmodes and the corresponding squeezing eigenvalues of the generated field both numerically and analytically. The analytical solution is obtained by modeling the joint spectral amplitude of the field by a Gaussian function in curvilinear coordinates. We show that this method is highly efficient and is in good agreement with the numerical solution. We also reveal that, when the total bandwidth of the generated beams is sufficiently high, the modal functions cannot be factored into spatial and temporal parts, but exhibit a spatiotemporal coupling, whose strength can be increased by shortening the pump.Show less >

Language :

Anglais

ANR Project :

Cavité optiques à impulsions synchronisées pour l'optique quantique et les systèmes d'information quantique
Quantum information and communication with high-dimensional encoding

Collections :

Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL

Files

2009.10511
Open access
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