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

We develop a perturbative technique for solving Markovian quantum dissipative dynamics,
with the perturbation parameter being a small gap in the eigenspectrum. As an example, we …

Exceptional points (EPs) are singularities in the spectra of non-Hermitian operators where
eigenvalues and eigenvectors coalesce. Open quantum systems have recently been …

We present a powerful formalism, disordered collective dynamics using truncated equations
(d-CUT-E), to simulate the ultrafast quantum dynamics of molecular polaritons in the …

Dissipative processes can drive different magnetic orders in quantum spin chains. Using a
nonperturbative analytic map** framework, we systematically show how to structure …

The formalism of the generalized quantum master equation (GQME) is an effective tool to
simultaneously increase the accuracy and the efficiency of quasiclassical trajectory methods …

We extend and benchmark the recently developed Effective-Hamiltonian (EFFH) method
[PRX Quantum 4, 020307 (2023) 2691-3399 10.1103/PRXQuantum. 4.020307] as an …

Whether genuine quantum effects, particularly quantum coherences, can offer an advantage
to quantum devices is a topic of much interest. Here, we study a minimal model, the three …

Abstract Machine learning has emerged as a promising paradigm to study the quantum
dissipative dynamics of open quantum systems. To facilitate the use of our recently …

Standard quantum master equation techniques, such as the Redfield or Lindblad equations,
are perturbative to second order in the microscopic system–reservoir coupling parameter λ …