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Static and dynamic contributions to anomalous chain dynamics in polymer blends
Static dynamic contributions anomalous chain dynamics polymer blends
2010/11/19
By means of computer simulations, we investigate the relaxation of the Rouse modes in a simple bead-spring model for non-entangled polymer blends. Two different models are used for the fast component,...
Non-relativistic Gravity in Entropic Quantum Dynamics
Non-relativistic Gravity Entropic Quantum Dynamics
2010/10/29
Symmetries and transformations are explored in the framework of entropic quantum dynamics. Two conditions arise that are required for any transformation to qualify as a symmetry. The heart of this wor...
Quantum Dynamics of Radical-Ion-Pair Reactions
Quantum Dynamics Radical-Ion-Pair Reactions
2010/10/20
Radical-ion-pair reactions were recently shown to represent a rich biophysical laboratory for the application of quantum measurement theory methods and concepts, casting doubt on the validity of the t...
Structural Studies of Liquid Alkaline-earth Metals -A Molecular Dynamics Approach
Molecular dynamics Pair distribution function Structure factor Binding energy
2010/6/30
In the present research article we have studied various properties like binding energy, the pair distribution function g(r), the structure factor S(q), specific heat at constant volume, and coordinati...
Proton Decay: Improving the sensitivity through nuclear dynamics?
nuclear dynamics Proton Decay
2010/3/16
The kinematics of the decay of a bound proton is governed by the proton spectral function. We evaluate this quantity in 16O using the information from nuclear physics experiments. It also includes a c...
Temperature Dependent Structure of Low Index Copper Surfaces Studied by Molecular Dynamics Simulation
Temperature Dependent Structure Low Index Copper Surfaces Molecular Dynamics Simulation
2010/10/19
The thermal behavior of the (010), (110) and (111) copper surfaces is studied by molecular dynamics simulation. We have used a many-body potential based on the tight-binding model in order to describe...
Symplectic Integration Methods in Molecular and Spin Dynamics Simulations
Symplectic Integration Methods Molecular and Spin Dynamics Simulations
2010/10/19
We review recently developed decomposition algorithms for molecular dynamics and spin dynamics simulations of many-body systems. These methods are time reversible, symplectic, and the error in the tot...
Spin dynamics of wave packets evolving with the Dirac Hamiltonian in atoms with high Z
Spin dynamics wave packets evolving Dirac Hamiltonian atoms high Z
2010/10/15
The motion of circular WP for one electron in central Coulomb field with high Z is calculated. The WP is defined in terms of solutions of the Dirac equation in order to take into account all possible ...