Showing quant-phShow all
2 papers · 1 filter
quant-ph2025
Sixth-order time-convolutionless master equation and beyond: Late-time resummations, two types of divergences, and the limits of validity
Lance Lampert, Srikar Gadamsetty, Shantanu Chaudhary +4
Perturbative master equations are essential for modeling open quantum systems but often exhibit late-time divergences when environmental correlations decay algebraically. In this w…
quant-ph2024
Invalidation of the Bloch-Redfield Equation in Sub-Ohmic Regime via a Practical Time-Convolutionless Fourth-Order Master Equation
Elyana Crowder, Lance Lampert, Grihith Manchanda +5
Despite recent advances in quantum sciences, a quantum master equation that accurately and simply characterizes open quantum dynamics across extremely long timescales and in disper…