期刊
PHYSICAL REVIEW LETTERS
卷 99, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.99.173601
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资金
- EPSRC [EP/E003931/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E003931/1] Funding Source: researchfish
A generalized version of the rotating-wave approximation for the single-mode spin-boson Hamiltonian is presented. It is shown that performing a simple change of basis prior to eliminating the off-resonant terms results in a significantly more accurate expression for the energy levels of the system. The generalized approximation works for all values of the coupling strength and for a wide range of detuning values, and may find applications in solid-state experiments.
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