Browsing Masters Degrees (Physics) by Advisor "Sergi, Alessandro."
Now showing items 17 of 7

Constanttemperature dynamics in the Wigner representation of quantum mechanics.
(2011)This dissertation deals with theory and algorithms for computer simulations of classical and quantum systems in the canonical ensemble. First, the approach of Nos eHoover and its generalization, known as the Nos e Hoover ... 
Generalisation of theory and algorithms for the configurational temperature Nosé–Hoover thermostat.
(2015)In this dissertation we reformulate the configurational temperature Nos`eHoover thermostat proposed by Braga and Travis (C. Braga and K.P. Travis, 2005), using the antisymmetric matrix formalism found in (A. Sergi, ... 
Measurepreserving and timereversible integration algorithms for constant temperature molecular dynamics.
(2011)This thesis concerns the formulation of integration algorithms for nonHamiltonian molecular dynamics simulation at constant temperature. In particular, the constant temperature dynamics of the NoséHoover, NoséHoover ... 
Numerical sampling of nonadiabatic dynamics of quantumclassical systems.
(2010)The simulation of the dynamics of quantum systems is very di cult, due to the fact that, in general, it cannot be calculated exactly for interacting manybody systems. Brute force simulations of quantum dynamics are ... 
On nonHermitian quantum mechanics.
(2013)The purpose of this dissertation is to review the salient features of nonHermitian quantum mechanics. An introduction to Hermitian quantum mechanics is included to make this review as accessible as possible. Attempts ... 
Quantum dynamics in classical constanttemperature baths.
(2012)In this dissertation the formulation of various integration algorithms is studied, with a view to simulate quantumclassical systems in contact with a thermal bath. In particular focus is given to the constant temperature ... 
Quantum dynamics in the partial Wigner picture.
(2013)The Wigner formalism can be used to provide a representation of quantum dynamics in a classicallike phase space. However, there are many cases, such as when dealing with spin systems in a dissipative environment, in ...