Angus Dunnett
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View article: MPSDynamics.jl: Tensor network simulations for finite-temperature (non-Markovian) open quantum system dynamics
MPSDynamics.jl: Tensor network simulations for finite-temperature (non-Markovian) open quantum system dynamics Open
The MPSDynamics.jl package provides an easy-to-use interface for performing open quantum systems simulations at zero and finite temperatures. The package has been developed with the aim of studying non-Markovian open system dynamics using …
View article: Thermal cycle and polaron formation in structured bosonic environments
Thermal cycle and polaron formation in structured bosonic environments Open
12+3 pages, 16+1 figures
View article: Thermal cycle and polaron formation in structured bosonic environments
Thermal cycle and polaron formation in structured bosonic environments Open
Chain-mapping techniques combined with the time-dependent density matrix renormalization group are powerful tools for simulating the dynamics of open quantum systems interacting with structured bosonic environments. Most interestingly, the…
View article: Efficient bond-adaptive approach for finite-temperature open quantum dynamics using the one-site time-dependent variational principle for matrix product states
Efficient bond-adaptive approach for finite-temperature open quantum dynamics using the one-site time-dependent variational principle for matrix product states Open
International audience
View article: Unveiling non-Markovian spacetime signaling in open quantum systems with long-range tensor network dynamics
Unveiling non-Markovian spacetime signaling in open quantum systems with long-range tensor network dynamics Open
Funding: T.L., A.C., and B.W.L. thank the Defence Science and Technology Laboratory and Direction Générale de l'Armement for support through the Anglo-French Ph.D. scheme. A.D. acknowledges support from the École Doctorale 564 Physique en …
View article: Influence of non-adiabatic effects on linear absorption spectra in the condensed phase: Methylene blue
Influence of non-adiabatic effects on linear absorption spectra in the condensed phase: Methylene blue Open
Modeling linear absorption spectra of solvated chromophores is highly challenging as contributions are present both from coupling of the electronic states to nuclear vibrations and from solute–solvent interactions. In systems where excited…
View article: Unveiling non-Markovian spacetime signalling in open quantum systems with long-range tensor network dynamics
Unveiling non-Markovian spacetime signalling in open quantum systems with long-range tensor network dynamics Open
Nanoscale devices - either biological or artificial - operate in a regime where the usual assumptions of a structureless, Markovian, bath do not hold. Being able to predict and study the dynamics of such systems is crucial and is usually d…
View article: Exact Spin-Boson-Model Tunneling Dynamics with Time Dependent Variation Matrix Product States (TDVMPS). Barrier height and temperature parameter space
Exact Spin-Boson-Model Tunneling Dynamics with Time Dependent Variation Matrix Product States (TDVMPS). Barrier height and temperature parameter space Open
Spin-Boson tunnelling data acquired using the T-TEDOA method for Time-Dependent-Variational-Matrix-Product-States (TDVMPS) accompanying the paper https://doi.org/10.3389/fchem.2020.600731.
View article: Exact Spin-Boson-Model Tunneling Dynamics with Time Dependent Variation Matrix Product States (TDVMPS). Barrier height and temperature parameter space
Exact Spin-Boson-Model Tunneling Dynamics with Time Dependent Variation Matrix Product States (TDVMPS). Barrier height and temperature parameter space Open
Spin-Boson tunnelling data acquired using the T-TEDOA method for Time-Dependent-Variational-Matrix-Product-States (TDVMPS) accompanying the paper https://doi.org/10.3389/fchem.2020.600731.
View article: Simulating Quantum Vibronic Dynamics at Finite Temperatures With Many Body Wave Functions at 0 K
Simulating Quantum Vibronic Dynamics at Finite Temperatures With Many Body Wave Functions at 0 K Open
For complex molecules, nuclear degrees of freedom can act as an environment for the electronic “system” variables, allowing the theory and concepts of open quantum systems to be applied. However, when molecular system-environment interacti…
View article: Matrix Product State Simulations of Non-Equilibrium Steady States and Transient Heat Flows in the Two-Bath Spin-Boson Model at Finite Temperatures
Matrix Product State Simulations of Non-Equilibrium Steady States and Transient Heat Flows in the Two-Bath Spin-Boson Model at Finite Temperatures Open
Simulating the non-perturbative and non-Markovian dynamics of open quantum systems is a very challenging many body problem, due to the need to evolve both the system and its environments on an equal footing. Tensor network and matrix produ…
View article: Simulating quantum vibronic dynamics at finite temperatures with many\n body wave functions at 0K
Simulating quantum vibronic dynamics at finite temperatures with many\n body wave functions at 0K Open
For complex molecules, nuclear degrees of freedom can act as an environment\nfor the electronic `system' variables, allowing the theory and concepts of open\nquantum systems to be applied. However, when molecular system-environment\nintera…
View article: Simulating quantum vibronic dynamics at finite temperatures with many body wave functions at 0K
Simulating quantum vibronic dynamics at finite temperatures with many body wave functions at 0K Open
For complex molecules, nuclear degrees of freedom can act as an environment for the electronic `system' variables, allowing the theory and concepts of open quantum systems to be applied. However, when molecular system-environment interacti…
View article: Matrix Product State Simulations of Non-Equilibrium Steady States and Transient Heat Flows in the Two-Bath Spin-Boson Model at Finite Temperatures
Matrix Product State Simulations of Non-Equilibrium Steady States and Transient Heat Flows in the Two-Bath Spin-Boson Model at Finite Temperatures Open
International audience
View article: Real-time benchmark dynamics of the Ohmic Spin-Boson Model computed with Time-Dependent Variational Matrix Product States. (TDVMPS) coupling strength and temperature parameter space
Real-time benchmark dynamics of the Ohmic Spin-Boson Model computed with Time-Dependent Variational Matrix Product States. (TDVMPS) coupling strength and temperature parameter space Open
Data describing the complete propagators (maps) for the evolution of the Ohmic Spin-Boson Model are made available, here. Using a time-dependent variotnal matrix product states (TDVMPS) respresentation of the complete spin-environment wave…
View article: Real-time benchmark dynamics of the Ohmic Spin-Boson Model computed with Time-Dependent Variational Matrix Product States. (TDVMPS) coupling strength and temperature parameter space
Real-time benchmark dynamics of the Ohmic Spin-Boson Model computed with Time-Dependent Variational Matrix Product States. (TDVMPS) coupling strength and temperature parameter space Open
Data describing the complete propagators (maps) for the evolution of the Ohmic Spin-Boson Model are made available, here. Using a time-dependent variotnal matrix product states (TDVMPS) respresentation of the complete spin-environment wave…
View article: Matrix Product State Simulations of Non-equilibirum Steady States and Transient Heat Flows in the Two-Bath Spin-Boson Model at Finite Temperatures
Matrix Product State Simulations of Non-equilibirum Steady States and Transient Heat Flows in the Two-Bath Spin-Boson Model at Finite Temperatures Open
Simulating the non-perturbative and non-Markovian dynamics of open quantum systems is a very challenging many body problem, due to the need to evolve both the system and its environments on an equal footing. Tensor network and matrix produ…
View article: Dynamically Evolving Bond-Dimensions within the one-site Time-Dependent-Variational-Principle method for Matrix Product States: Towards efficient simulation of non-equilibrium open quantum dynamics
Dynamically Evolving Bond-Dimensions within the one-site Time-Dependent-Variational-Principle method for Matrix Product States: Towards efficient simulation of non-equilibrium open quantum dynamics Open
Understanding the emergent system-bath correlations in non-Markovian and non-perturbative open systems is a theoretical challenge that has benefited greatly from the application of Matrix Product State (MPS) methods. Here, we propose an au…