A Variational Procedure for Time-Dependent Processes

Details A Variational Procedure for Time-Dependent Processes A Variational Procedure for Time-Dependent Processes

2004-06-25

arxiv.org/abs/physics/0406123v1

Physical Review E, 69,2, 026120-026129 (2004)

Physics

Fluid Dynamics

25 pages, 4 figures

Scientific paper

10.1103/PhysRevE.69.026120

A simple variational Lagrangian is proposed for the time development of an arbitrary density matrix, employing the "factorization" of the density. Only the "kinetic energy" appears in the Lagrangian. The formalism applies to pure and mixed state cases, the Navier-Stokes equations of hydrodynamics, transport theory, etc. It recaptures the Least Dissipation Function condition of Rayleigh-Onsager {\bf and in practical applications is flexible}. The variational proposal is tested on a two level system interacting that is subject, in one instance, to an interaction with a single oscillator and, in another, that evolves in a dissipative mode.

Affiliated with

Also associated with

No associations

Rating

A Variational Procedure for Time-Dependent Processes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Variational Procedure for Time-Dependent Processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Variational Procedure for Time-Dependent Processes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-206572