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quant-ph2024
Time-Convolutionless Master Equation Applied to Adiabatic Elimination
Masaaki Tokieda, Angela Riva
In open quantum systems theory, reduced models are invaluable for conceptual understanding and computational efficiency. Adiabatic elimination is a useful model reduction method fo…
quant-ph2022
Complete Positivity Violation in Higher-order Quantum Adiabatic Elimination
Masaaki Tokieda, Cyril Elouard, Alain Sarlette +1
When a composite Lindblad system consists of weakly coupled sub-systems with fast and slow timescales, the description of slow dynamics can be simplified by discarding fast degrees…
quant-ph2019★ 14 cited
A new approach for open quantum systems based on a phonon number representation of a harmonic oscillator bath
M. Tokieda, K. Hagino
To investigate a system coupled to a harmonic oscillator bath, we propose a new approach based on a phonon number representation of the bath. Compared to the method of the hierarch…