From Zeno to anti-Zeno: decoherence-control dependence on the quantum statistics of the bath

Details From Zeno to anti-Zeno: decoherence-control dependence on the quantum statistics of the bath From Zeno to anti-Zeno: decoherence-control dependence on the quantum statistics of the bath

2010-12-26

arxiv.org/abs/1012.5509v1

Phys. Rev. A 83, 032105 (2011)

Physics

Quantum Physics

2 figures (submitted)

Scientific paper

10.1103/PhysRevA.83.032105

We demonstrate through exact solutions that a spin bath leads to stronger
(faster) dephasing of a qubit than a bosonic bath with identical bath-coupling
spectrum. This difference is due to the spin-bath "dressing" by the coupling.
Consequently, the quantum statistics of the bath strongly affects the pulse
sequences required to dynamically decouple the qubit from its bath.

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