Modulating relative weights of interaction channels in a quantum Brownian motion model allows control over non-Markovianity, inducing transitions to Markovian regimes using Gaussian master equations.
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Displaced number states in the quantum Rabi model converge to the corresponding semiclassical dynamics in the joint limit of vanishing coupling and infinite displacement, with convergence slowing as the Fock number n increases.
Local quantum memory criteria applied via matrix product operator methods show that single-intervention process tensors generally predict quantum memory at low temperatures in spin-boson models, while dynamical maps detect it for resonant environments at short times.
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Controlling the non-Markovianity of quantum Brownian motion
Modulating relative weights of interaction channels in a quantum Brownian motion model allows control over non-Markovianity, inducing transitions to Markovian regimes using Gaussian master equations.
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Convergence to semiclassicality in the quantum Rabi model
Displaced number states in the quantum Rabi model converge to the corresponding semiclassical dynamics in the joint limit of vanishing coupling and infinite displacement, with convergence slowing as the Fock number n increases.
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Verifying Quantum Memory in the Dynamics of Spin Boson Models
Local quantum memory criteria applied via matrix product operator methods show that single-intervention process tensors generally predict quantum memory at low temperatures in spin-boson models, while dynamical maps detect it for resonant environments at short times.
- Operator-Valued Hardy Spaces and Kramers--Kronig Relations for Non-Markovian Quantum Memory Kernels