For a driven qubit coupled to a bosonic bath, the nonsecular Floquet-Redfield heat current is derived, and an instantaneous-eigenbasis master equation reproduces its low-frequency behavior, whereas the full secular approximation changes peak heights.
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Heat transport in driven quantum systems: Comparison between the Floquet-Redfield equation and the master equation in the instantaneous eigenbasis
For a driven qubit coupled to a bosonic bath, the nonsecular Floquet-Redfield heat current is derived, and an instantaneous-eigenbasis master equation reproduces its low-frequency behavior, whereas the full secular approximation changes peak heights.