31 citations · 103 across the 7 of their papers we have counts for
7 papers
Quantum dynamics of a plasmonic metamolecule with a time-dependent driving
Daniel A. Uken, Alessandro Sergi
We simulate the dynamics of a quantum dot coupled to the single resonating mode of a metal nano-particle. Systems like this are known as metamolecules. In this study, we consider a…
On Filtering Schemes in the Quantum-Classical Liouville Approach to Non-adiabatic Dynamics
Daniel Uken, Alessandro Sergi, Francesco Petruccione
We study a number of filtering schemes for the reduction of the statistical error in non-adiabatic calculations by means of the quantum-classical Liouville equation. In particular,…
Stochastic Simulation of Nonadiabatic Dynamics at Long Time
Daniel A. Uken, Alessandro Sergi, Francesco Petruccione
Using a generalized energy-conserving transition probability, it is shown how nonadiabatic calculations, within the Wigner-Heisenberg representation of quantum mechanics, can be re…
Bulgac-Kusnezov-Nosé-Hoover thermostats
Alessandro Sergi, Gregory S. Ezra
In this paper we formulate Bulgac-Kusnezov constant temperature dynamics in phase space by means of non-Hamiltonian brackets. Two generalized versions of the dynamics are similarly…
Sampling of quantum dynamics at long time
Alessandro Sergi, Francesco Petruccione
The principle of energy conservation leads to a generalized choice of transition probability in a piecewise adiabatic representation of quantum(-classical) dynamics. Significant im…
Numerical and Analytical Approach to the Quantum Dynamics of Two Coupled Spins in Bosonic Baths
Alessandro Sergi, Ilya Sinayskiy, Francesco Petruccione
The quantum dynamics of a spin chain interacting with multiple bosonic baths is described in a mixed Wigner-Heisenberg representation. The formalism is illustrated by simulating th…