From Zeno to anti-Zeno regime: Decoherence-control dependence on the quantum statistics of the bath
D. D. Bhaktavatsala Rao, Gershon Kurizki · Physical Review A · 2011
We demonstrate through exact solutions that a spin bath leads to stronger (faster) dephasing of a qubit than a bosonic bath with an 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.