7 papers
Multibath Influence Matrices: Universal Scaling from Real-Time Dynamics
Matan Lotem, Michael Sonner, Valentin Link +2
Diverging timescales are the hallmark of critical dynamics and the bottleneck to their classical and quantum simulation. To tame this, we compress a spacetime tensor network: tempo…
Benchmarking Floquet Master Equations for Periodically Driven Open Quantum Systems
Konrad Mickiewicz, Valentin Link, Walter T. Strunz
The dynamics of open quantum systems is commonly described by quantum master equations derived under the assumption of weak system-bath coupling and a separation of timescales betw…
Exact Floquet dynamics of strongly damped driven quantum systems
Konrad Mickiewicz, Valentin Link, Walter T. Strunz
We present an approach for efficiently simulating strongly damped quantum systems subjected to periodic driving, employing a periodic matrix product operator representation of the…
Tensor network influence functionals for open quantum systems with general Gaussian bosonic baths
Valentin Link
Dynamics of open quantum systems with structured reservoirs can often be simulated efficiently with tensor network influence functionals. The standard variants of the time-evolving…
Uniform process tensor approach for the calculation of multi-time correlation functions of non-Markovian open systems
Matteo Garbellini, Konrad Mickiewicz, Valentin Link +2
The process tensor framework to open quantum systems provides the most general description of multi-time correlations in non-Markovian quantum dynamics. A compressed representation…
Verifying Quantum Memory in the Dynamics of Spin Boson Models
Charlotte Bäcker, Valentin Link, Walter T. Strunz
We investigate the nature of memory effects in the non-Markovian dynamics of spin boson models. Local quantum memory criteria can be used to indicate that the reduced dynamics of a…