Coherence refers to correlations in waves. Because matter has a wave-particle nature, it is
unsurprising that coherence has deep connections with the most contemporary issues in …

We provide a self-contained review of master equation approaches to modelling phonon
effects in optically driven self-assembled quantum dots. Coupling of the (quasi) two-level …

The dynamical convergence of a system to the thermal distribution, or Gibbs state, is a
standard assumption across all of the physical sciences. The Gibbs state is determined just …

We present the reaction-coordinate polaron-transform (RCPT) framework for generating
effective-Hamiltonian models to treat nonequilibrium open quantum systems at strong …

When a quantum system couples strongly to multiple baths, then it is generally no longer
possible to describe the resulting system dynamics by simply adding the individual effects of …

Quantum systems are invariably open, evolving under surrounding influences rather than in
isolation. Standard open quantum system methods eliminate all information on the …

We explore excitonic energy transfer dynamics in a molecular dimer system coupled to both
structured and unstructured oscillator environments. By extending the reaction coordinate …

Strong coupling between light and matter is possible with a variety of organic materials. In
contrast to the simpler inorganic case, organic materials often have a complicated spectrum …

Gauge freedom in quantum electrodynamics (QED) outside of textbook regimes is reviewed.
It is emphasized that QED subsystems are defined relative to a choice of gauge. Each …

Large exciton diffusion lengths generally improve the performance of organic semiconductor
devices, because they enable energy to be transported farther during the exciton lifetime …