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Accession Number
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ADA562396
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Title
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Ultrafast Spin-Motion Entanglement and Interferometry with a Single Atom.
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Publication Date
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Feb 2012
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Media Count
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5p
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Personal Author
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C. Senko C. W. Conover J. Mizrahi K. G. Johnson W. C. Campbell
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Abstract
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We report entanglement of a single atom's hyperfine spin state with its motional state on a timescale of order 15 ns. We engineer a short train of intense laser pulses to impart a spin-dependent momentum transfer of +/-2hk. We further create an atomic interferometer using pairs of momentum kicks and demonstrate collapse and revival of spin coherence as the motional wavepacket is split and recombined. The revival after a pair of kicks occurs only when the second kick is delayed by an integer multiple of the period of the harmonic trap, a signature of entanglement and disentanglement of the spin with the motion. Such quantum control may allow a new regime of ultrafast entanglement between atomic qubits.
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Keywords
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Atoms
Entanglement
Interferometry
Quantum theory
Single atoms
Spinning(Motion)
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Source Agency
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Non Paid ADAS
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NTIS Subject Category
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99F - Physical & Theoretical Chemistry
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Corporate Author
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Maryland Univ., College Park.
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Document Type
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Technical report
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Title Note
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N/A
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NTIS Issue Number
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1225
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Contract Number
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N/A
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