Search results for "Cold atoms & matter waves"

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Collective-Mode Enhanced Matter-Wave Optics

2021

International audience; In contrast to light, matter-wave optics of quantum gases deals with interactions even in free space and for ensembles comprising millions of atoms. We exploit these interactions in a quantum degenerate gas as an adjustable lens for coherent atom optics. By combining an interaction-driven quadrupole-mode excitation of a Bose-Einstein condensate (BEC) with a magnetic lens, we form a time-domain matter-wave lens system. The focus is tuned by the strength of the lensing potential and the oscillatory phase of the quadrupole mode. By placing the focus at infinity, we lower the total internal kinetic energy of a BEC comprising 101(37) thousand atoms in three dimensions to …

General Physics and AstronomyKinetic energy01 natural sciences010305 fluids & plasmaslaw.inventionOptics[PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph]law0103 physical sciencesMagnetic lens010306 general physicsQuantumBose-Einstein CondensateCondensed Matter::Quantum GasesPhysics[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]business.industryDegenerate energy levelsTemperatureLens (optics)InterferometryAtom opticsCold atoms & matter wavesMatter wavebusinessDelta-Kick CollimationPhysical Review Letters

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PEPhysical Sciences and Engineering
- PE2Fundamental Constituents of Matter
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LSLife Sciences
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