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Accession Number ADA562396
Title Ultrafast Spin-Motion Entanglement and Interferometry with a Single Atom.
Publication Date Feb 2012
Media Count 5p
Personal Author C. Senko C. W. Conover J. Mizrahi K. G. Johnson W. C. Campbell
Abstract 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.
Keywords Atoms
Entanglement
Interferometry
Quantum theory
Single atoms
Spinning(Motion)

 
Source Agency Non Paid ADAS
NTIS Subject Category 99F - Physical & Theoretical Chemistry
Corporate Author Maryland Univ., College Park.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1225
Contract Number N/A

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