209 citations · 1.6k across the 43 of their papers we have counts for
4 papers · 1 filter
Linear Absorption Spectrum of a Quantum Two-Dimensional Rotator Calculated Using a Rotationally Invariant System-Bath Hamiltonian
Yuki Iwamoto, Yoshitaka Tanimura
We consider a two-dimensional rigid rotator system coupled to a two-dimensional heat bath. The Caldeira-Leggett (Brownian) model for the rotator and the spin-Boson model have been…
Phase-space wavepacket dynamics of internal conversion via conical intersection: Multi-state quantum Fokker-Planck equation approach
Tatsushi Ikeda, Yoshitaka Tanimura
We theoretically investigate internal conversion processes of a photoexcited molecule in a condensed phase. The molecular system is described by two-dimensional adiabatic ground an…
Hierarchical Schrödinger Equations of Motion for Open Quantum Dynamics
Kiyoto Nakamura, Yoshitaka Tanimura
We rigorously investigate the quantum non-Markovian dissipative dynamics of a system coupled to a harmonic oscillator bath by deriving hierarchical Schrodinger equations of motion…
Hierarchical Equations of Motion Approach to Quantum Thermodynamics
Akihito Kato, Yoshitaka Tanimura
We present a theoretical framework to investigate quantum thermodynamic processes under non-Markovian system-bath interactions on the basis of the hierarchical equations of motion…