Classical Lorentz harmonic oscillator model of photo-phonon inteaction


by hjaohuang
Tags: classical, harmonic, inteaction, lorentz, model, oscillator, photophonon
hjaohuang
hjaohuang is offline
#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
The hemihelix: Scientists discover a new shape using rubber bands (w/ video)
Mapping the road to quantum gravity
Chameleon crystals could enable active camouflage (w/ video)
chrisbaird
chrisbaird is offline
#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