Phys. Rev. B 67, 155104 (2003) [7 pages]Decoherence and relaxation of a quantum bit in the presence of Rabi oscillationsReceived 10 September 2002; published 11 April 2003 The dissipative dynamics of a quantum bit driven by a strong resonant field and interacting with a heat bath is investigated. We derive generalized Bloch equations and find modifications of the qubit’s damping rates caused by Rabi oscillations. The nonequilibrium decoherence and relaxation of a phase qubit inductively coupled to a resonant tank circuit is considered as an illustration of the general results. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.67.155104
DOI:
10.1103/PhysRevB.67.155104
PACS:
85.25.Cp, 03.65.Yz, 03.67.Lx
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