Open quantum systems (OQSs) cannot always be described with the Markov approximation,
which requires a large separation of system and environment time scales. An overview is …

Multichromophoric biosystems represent a broad family with very diverse members, ranging
from light-harvesting pigment–protein complexes to nucleic acids. The former are designed …

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 …

For a system strongly coupled to a heat bath, the quantum coherence of the system and the
heat bath plays an important role in the system dynamics. This is particularly true in the case …

A quantum system weakly coupled to a zero-temperature environment will relax, via
spontaneous emission, to its ground-state. However, when the coupling to the environment …

We introduce a scheme for the quantum simulation of many-body decoherence based on
the unitary evolution of a stochastic Hamiltonian. Modulating the strength of the interactions …

We develop new methods to efficiently propagate the hierarchical equations of motion
(HEOM) by using the Tucker and hierarchical Tucker (HT) tensors to represent the reduced …

With the rapid progress in quantum hardware, there has been an increased interest in new
quantum algorithms to describe complex many-body systems searching for the still-elusive …

Nonadiabatic transition dynamics lies at the core of many electron/hole transfer,
photoactivated, and vacuum field-coupled processes. About a century after Ehrenfest …

An extended hierarchy equation of motion (HEOM) is proposed and applied to study the
dynamics of the spin-boson model. In this approach, a complete set of orthonormal functions …