Spin measurements and control of cold atoms using spin-orbit fields
arXiv:1405.6302 · doi:10.1103/PhysRevA.89.043614
Abstract
We show that by switching on a spin-orbit interaction in a cold-atom system, experiencing a Zeeman-like coupling to an external field, e.g., in a Bose-Einstein condensate, one can simulate a quantum measurement on a precessing spin. Depending on the realization, the measurement can access both the ergodic and the Zeno regimes, while {the time dependence} of the spin's decoherence may vary from a Gaussian to an inverse fractional power law. Back action of the measurement forms time- and coordinate-dependent profiles of the atoms' density, resulting in its translation, spin-dependent fragmentation, and appearance of interference patterns.
arXiv comment2 figures
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Cited by in corpus (6)
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- Quantum Dynamical Phase Transition in a Spin-Orbit Coupled Bose Condensate
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