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quant-ph2026
Steady state coherence in a qubit is incompatible with a quantum map
Hans C. Fogedby
We consider the recent proposal of steady state coherences in a single qubit in the case of a composite system-bath interaction. Based on a field theoretical approach we reanalyse…
quant-ph2026
On the Redfield and Lindblad master equations
Hans C. Fogedby
In a previous work we developed a field theoretical approach to open quantum systems using condensed matter methods. In the Born approximation we derived the Redfield equation on t…