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

Quantum atom optics with metastable helium: squeezing and phase matching

Denis Boiron, Jean-Christophe Jaskula, Marie Bonneau, Valentina Krachmalnicoff, Guthrie B. Partridge, Vanessa Y. F. Leung, Alain Aspect, Christoph Ira Westbrook, Piotr Deuar, Paweł Zin, Marek Trippenbach, Karen V. Kheruntsyan

Published Sep 1, 2010• 0 citations
OpenAlex

Related papers

Quantum optics with metastable helium atoms

Ton G. van Leeuwen, A. E. A. Koolen, M.J. de Koning +2 more

•Jan 1, 2000•0 citations

An ultra-cold metastable helium beam for atom optics and atom physics

J.A. Swansson

•Jan 1, 2006•0 citations

UV laser source for atom optics experiments with metastable helium

Ivan Blajer

•Jan 1, 2004•0 citations

Quantum optics in a metastable helium vapor

Fabien Bretenaker, Fabienne Goldfarb, Shikang Liu +2 more

Due to its simple level structure, helium 4 is particularly attractive to investigate original scenario for nonlinear light-atom interaction. We illustrate this feature by two examples: i) the demonstration of an original CPT-enhanced phase sensitive amplifier for light, which has been used to generate a squeezed vacuum and, ii) the originality of spin noise spectroscopy in metastable helium 4.

Optical and Quantum Sensing and Precision Metrology II•Mar 9, 2022•1 citation

Quantum Control in Atom Optics

Dan Steck

APS•Apr 1, 2005•0 citations

Spontaneous Four-Wave Mixing of de Broglie Waves: Beyond Optics

Valentina Krachmalnicoff, Jean-Christophe Jaskula, Marie Bonneau +8 more

We investigate the atom-optical analog of degenerate four-wave mixing by colliding two Bose-Einstein condensates of metastable helium. The momentum distribution of the scattered atoms is measured in three dimensions. A simple analogy with photon phase matching conditions suggests a spherical final distribution. We find, however, that it is an ellipsoid with radii smaller than the initial collision momenta. Numerical and analytical calculations agree with this and reveal the interplay between many-body effects, mean-field interaction, and the anisotropy of the source condensate.

arXiv:0911.4564•Physical Review Letters•Apr 15, 2010•81 citations
We investigate the atom-optical analog of degenerate four-wave mixing by colliding two Bose-Einstein condensates of metastable helium. The momentum distribution of the scattered atoms is measured in three dimensions. A simple analogy with photon phase matching conditions suggests a spherical final distribution. We find, however, that it is an ellipsoid with radii smaller than the initial collision momenta. Numerical and analytical calculations agree with this and reveal the interplay between many-body effects, mean-field interaction, and the anisotropy of the source condensate.