2007/12/13 by A. Perrin, Aurélien Perrin, Craig M. Savage +8 · 4 citations
Physics and Astronomy · #Atom (system on chip) #Atomic and Subatomic Physics Research #Atomic physics #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Collision #Halo #Helium #Metastability #Mixing (physics) #Physics #Quantum #Quantum mechanics #Quantum, superfluid, helium dynamics #Representation (politics) #Scattering #quant-ph
paper · pdf · doi:10.1088/1367-2630/10/4/045021
published as New Journal of Physics 10 (2008) 045021
arxiv created 2007/12/13 · openalex publication_date 2008/04/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We perform a theoretical analysis of atomic four-wave mixing via a collision of two Bose–Einstein condensates of metastable helium atoms, and compare the results to a recent experiment. We calculate atom–atom pair correlations within the scattering halo produced spontaneously during the collision. We also examine the expected relative number squeezing of atoms on the sphere. The analysis includes first-principles quantum simulations using the positive P -representation method. We develop a unified description of the experimental and simulation results.