Register to reply

Classical Lorentz harmonic oscillator model of photo-phonon inteaction

Share this thread:
hjaohuang
#1
May9-11, 11:03 PM
P: 2
Why the reciprocal of the damping rate in this model equal to the phonon lifetime? Can somebody give me a detailed exaplanation.

Thanks.
Phys.Org News Partner Physics news on Phys.org
Scientists uncover clues to role of magnetism in iron-based superconductors
Researchers find first direct evidence of 'spin symmetry' in atoms
X-ray laser probes tiny quantum tornadoes in superfluid droplets
chrisbaird
#2
May12-11, 03:25 PM
P: 617
The answer is dephasing. If there were no damping, an oscillator would go on forever. The damping rate is a characteristic rate at which the oscillation gets interrupted. In the quantum world, quantum states slowly dephase and have a lifetime describing this loss of coherence. With loss of coherence comes the destruction of the interaction, e.g. the oscillator stops oscillating.


Register to reply

Related Discussions
Algebraic interpretation of classical harmonic oscillator Advanced Physics Homework 0
Classical Action for Harmonic Oscillator Advanced Physics Homework 0
Lorentz Oscillator Model Atomic, Solid State, Comp. Physics 2
Turning points of a classical harmonic oscillator Introductory Physics Homework 1
Please help asap classical mech( harmonic oscillator) Introductory Physics Homework 1