title: Efficient simulation of strong system-environment interactions.
abstract: Multicomponent quantum systems in strong interaction with their environment are receiving increasing attention due to their importance in a variety of contexts, ranging from solid state quantum information processing to the quantum dynamics of biomolecular aggregates. Unfortunately, these systems are difficult to simulate as the system-bath interactions cannot be treated perturbatively and standard approaches are invalid or inefficient. Here we combine the time-dependent density matrix renormalization group with techniques from the theory of orthogonal polynomials to provide an efficient method for simulating open quantum systems, including spin-boson models and their generalizations to multicomponent systems.
authors.affiliation: Departamento de Física Aplicada, Universidad Politécnica de Cartagena, Cartagena 30202, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Prior
authors.forename: Alex W
authors.initials: AW
authors.lastname: Chin
authors.forename: Susana F
authors.initials: SF
authors.lastname: Huelga
authors.forename: Martin B
authors.initials: MB
authors.lastname: Plenio