Over the last two decades ratchet mechanisms have transformed the understanding and
design of stochastic molecular systems—biological, chemical and physical—in a move away …

An open quantum system refers to a system that is further coupled to a bath system
consisting of surrounding radiation fields, atoms, molecules, or proteins. The bath system is …

Molecular motors, where light can be transformed into motion, are promising in the design of
nanomechanical devices. For applications, however, finding relationships between …

Unidirectional photochemically driven molecular motors (PMMs) convert the energy of
absorbed light into continuous rotational motion. As such they are key components in the …

Molecular motors based on the overcrowded alkene motif convert light energy into
unidirectional mechanical motion through an excited state isomerization reaction. The …

We developed a computer code for the thermodynamic quantum Fokker–Planck equations
(T-QFPE), derived from a thermodynamic system–bath model. This model consists of an …

The theory of hierarchical equations of motion (HEOM) is one of the standard methods to
give exact evaluations of the dynamics as coupled to harmonic oscillator environments …

We present a framework for simulating relaxation dynamics through a conical intersection of
an open quantum system that combines methods to approximate the motion of degrees of …

Simulating the irreversible quantum dynamics of exciton-and electron-transfer problems
poses a nontrivial challenge. Because the irreversibility of the system dynamics is a result of …

Unidirectional photochemical molecular motors can act as a power source for molecular
machines. The motors operate by successive excited state isomerization and ground state …