1996/12/31 by C. M. Savage, Janne Ruostekoski, Dan F. Walls · 8 citations
Computer Science · Physics and Astronomy · #Amplified spontaneous emission #Atom (system on chip) #Atom laser #Atomic physics #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Excited state #Ground state #Laser #Optics #Phase (matter) #Phase control #Phase difference #Photon #Physics #Quantum Information and Cryptography #Quantum mechanics #Spontaneous emission #Stimulated emission #Strong Light-Matter Interactions #cond-mat #physics.atom-ph
paper · pdf · doi:10.1103/physreva.56.2046
published in Physical Review A 56(3), 2046-2050 (American Physical Society) · 14 pages, 2 postscript figures, Revtex. Corrections and significant additions in revision
arxiv created 1997/02/24 · openalex publication_date 1997/09/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that the phase difference of two overlapping ground-state Bose-Einstein condensates can affect the optical spontaneous emission rate of excited atoms. Depending on the phase difference the atom-stimulated spontaneous emission rate can vary between zero and the rate corresponding to all the ground-state atoms in a single condensate. Besides giving control over spontaneous emission this provides an optical method for detecting the condensate phase difference. It differs from previous methods in that no light fields are applied. Instead the light is spontaneously emitted when excited atoms make a transition into either condensate.