Quantum pump for countercirculation in a spinor Bose-Einstein condensate

Journal Article · Sat May 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.053619· OSTI ID:21408877

Xu, Z F; Lue, R; You, L ^[1]; Zhang, P ^[2]

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1. Department of Physics, Tsinghua University, Beijing 100084 (China)
2. ERATO, JST, Macroscopic Quantum Control Project, Hongo, Bunkyo-Ku, Tokyo 113-8656 (Japan)

We propose a pump scheme for quantum circulations, including countercirculations for superposition states, of a spinor Bose-Einstein condensate. Our scheme is efficient and can be implemented within current experimental technologies and setups. It remains valid for nonclassical atomic states, such as pseudo-spin-squeezed states and maximally entangled N-particle Greenberger-Horne-Zeilinger (|N,0>+|0,N>) states. Moreover, it is capable of transforming several enhanced sensing protocols relying on reduced fluctuations from quantum correlation and entanglement of atomic internal states to enhanced measurement of spatial interference and rotation.

• OSTI ID: 21408877
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR MOMENTUM
BOSE-EINSTEIN CONDENSATION
CORRELATIONS
ENERGY LEVELS
EXCITED STATES
FLUCTUATIONS
INTERFERENCE
PARTICLE PROPERTIES
QUANTUM ENTANGLEMENT
SPIN
VARIATIONS