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Engineered Tunable Decay Rate and Controllable Dissipative Dynamics
- Source :
- The Journal of Chemical Physics 136, 121103 (2012)
- Publication Year :
- 2022
-
Abstract
- We investigate the steering dissipative dynamics of a two-level system (qubit) by means of the modulation of an assisted tunneling degree of freedom which is described by a quantum-oscillator spin-boson model. Our results reveal that the decoherence rate of the qubit can be significantly suppressed and simultaneously its quality factor is enhanced. Moreover, the modulated dynamical susceptibility exhibits a multi-peak feature which is indicative of the underlying structure and measurable in experiment. Our findings demonstrate that the interplay between the combined degrees of freedom and the qubit is crucial for reducing the dissipation of qubit and expanding the coherent regime of quantum operation much large. The strategy might be used to fight against deterioration of quantum coherence in quantum information processing.<br />Comment: 5 pages, 2 figures
Details
- Database :
- arXiv
- Journal :
- The Journal of Chemical Physics 136, 121103 (2012)
- Publication Type :
- Report
- Accession number :
- edsarx.2204.02561
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/1.3700437