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Steady states of harmonic oscillator chains and shortcomings of harmonic heat baths.
| Content Provider | CiteSeerX |
|---|---|
| Author | Tegmark, Max Yeh, Leehwa |
| Abstract | We study properties of steady states (states with time-independent density operators) of systems of coupled harmonic oscillators. Formulas are derived showing how adiabatic change of the Hamiltonian transforms one steady state into another. It is shown that for infinite systems, sudden change of the Hamiltonian also tends to produce steady states, after a transition period of oscillations. These naturally arising steady states are compared to the maximum-entropy state (the thermal state) and are seen not to coincide in general. The approach to equilibrium of subsystems consisting of n coupled harmonic oscillators has been widely studied, but only in the simple case where n = 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Steady State Harmonic Heat Bath Harmonic Oscillator Chain Adiabatic Change Harmonic Oscillator Thermal State Maximum-entropy State Transition Period Infinite System Coupled Harmonic Oscillator Sudden Change Time-independent Density Operator Simple Case |
| Content Type | Text |
