Sub-Poissonian Number Differences in Four-Wave Mixing of Matter Waves
نویسندگان
چکیده
منابع مشابه
Sub-poissonian number differences in four-wave mixing of matter waves.
We demonstrate sub-Poissonian number differences in four-wave mixing of Bose-Einstein condensates of metastable helium. The collision between two Bose-Einstein condensates produces a scattering halo populated by pairs of atoms of opposing velocities, which we divide into several symmetric zones. We show that the atom number difference for opposing zones has sub-Poissonian noise fluctuations, wh...
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The coherence properties of amplified matter waves generated by four-wave mixing (FWM) are studied using the Hanbury-Brown-Twiss method. We examine two limits. In the first case stimulated processes lead to the selective excitation of a pair of spatially separated modes, which we show to be second order coherent, while the second occurs when the FWM process is multimode, due to spontaneous scat...
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In a recent experiment, Campbell et al. Phys. Rev. Lett. 96, 020406 2006 observed degenerate four-wave mixing of matter waves in a one-dimensional optical lattice. We analyze the essential quantum features of the experiment to show that entanglement is created between the quadratures of the two scattered atomic clouds and is a true many-body rather than two-body phenomenon. We demonstrate that ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2010
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.105.190402