Abstract
We develop a unified theory of dynamically suppressed decay and decoherence by external fields in qubits coupled to arbitrary thermal baths and dephasing sources. This general theory does not invoke the rotating-wave approximation, which fails for ultrafast field-induced modulations of qubit-bath coupling. Considerations for optimizing the dynamical suppression are outlined.
- Received 20 October 2003
DOI:https://doi.org/10.1103/PhysRevLett.93.130406
©2004 American Physical Society