Atom Optics Realization of the Quantum<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>δ</mml:mi></mml:math>-Kicked Rotor
F. L. MooreDepartment of Physics, The University of Texas at Austin, Austin, Texas 78712-1081John C. RobinsonDepartment of Physics, The University of Texas at Austin, Austin, Texas 78712-1081C. F. BharuchaDepartment of Physics, The University of Texas at Austin, Austin, Texas 78712-1081Bala SundaramDepartment of Physics, The University of Texas at Austin, Austin, Texas 78712-1081M. G. RaizenDepartment of Physics, The University of Texas at Austin, Austin, Texas 78712-1081
1995en
ABI
Аннотация
We report the first direct experimental realization of the quantum $\ensuremath{\delta}$-kicked rotor. Our system consists of a dilute sample of ultracold sodium atoms in a periodic standing wave of near-resonant light that is pulsed on periodically in time to approximate a series of delta functions. Momentum spread of the atoms increases diffusively with every pulse until the "quantum break time" after which exponentially localized distributions are observed. Quantum resonances are found for specific values of the pulse period.
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