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

In this review, we provide an introduction to and an overview of some more recent advances
in real-time dynamics of quantum impurity models and their realizations in quantum devices …

We present a new variational method for investigating the ground state and out of
equilibrium dynamics of quantum many-body bosonic and fermionic systems. Our approach …

We report the development of an efficient many-body algorithm for simulating open quantum
system dynamics that utilizes a time-dependent variational principle for matrix product states …

Normally, quantum fluctuations enhance the escape from metastable states in the presence
of dissipation. Here we show that dissipation can enhance the stability of a quantum …

We employ a polaron picture to investigate the properties of the two-photon quantum Rabi
model (QRM), which describes a two-level or spin-half system coupled with a single bosonic …

Half a century after its discovery, the Josephson junction has become the most important
nonlinear quantum electronic component at our disposal. It has helped reshape the …

The Rabi model plays a fundamental role in understanding light-matter interaction. It
reduces to the Jaynes-Cummings model via the rotating-wave approximation, which is …

Understanding physical properties of quantum emitters strongly interacting with quantized
electromagnetic modes is one of the primary goals in the emergent field of waveguide …

We propose an extension to the Davydov D 2 Ansatz in the dynamics study of the Holstein
molecular crystal model with diagonal and off-diagonal exciton-phonon coupling using the …