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On the Lighter Side => New Theories => Topic started by: trevorjohnson32 on 19/08/2021 17:29:45

Title: quantum mechanics introduces phonon
Post by: trevorjohnson32 on 19/08/2021 17:29:45

I just heard of a phonon, which is a soundwave particle in quantum mechanics. Could we measure phonon with a          t-square to get photons? haha but seriously WTHeck is a phonon?

Title: Re: quantum mechanics introduces phonon
Post by: Eternal Student on 19/08/2021 18:23:29

Hi.
Phonons are described here:   https://en.wikipedia.org/wiki/Phonon
They are said to be important in condensed matter physics.  I don't know any more about them, sorry.

Title: Re: quantum mechanics introduces phonon
Post by: Colin2B on 19/08/2021 21:03:58

Quote from: Eternal Student on 19/08/2021 18:23:29

They are said to be important in condensed matter physics.

They are pretty general in physics of crystal lattice vibrations. They are just the quantum of the vibrations and behave like particles.

Title: Re: quantum mechanics introduces phonon
Post by: Bored chemist on 19/08/2021 21:07:15

Quote from: trevorjohnson32 on 19/08/2021 17:29:45

I just heard of a phonon

They were "introduced" nearly a century ago.

Title: Re: quantum mechanics introduces phonon
Post by: Kartazion on 20/08/2021 01:14:08

Quote from: trevorjohnson32 on 19/08/2021 17:29:45

I just heard of a phonon, which is a soundwave particle in quantum mechanics.

Phonons are also studied for the thermal transport as the radiative heat transfer energy https://en.wikipedia.org/wiki/Heat_transfer_physics