Is Quantum Brownian Motion Linked to Virtual Particle Frequencies?

[HakimPhilo]

Hello EVERYBODY! :)
I have a question: Does the frequency of virtual particles (apparition/disappearance) match with nucleus random path - known as Quantum Browniαn Motion?

Thank you in advance! ;)

 

[mfb]

What do you mean with "frequency of virtual particles"? Virtual particles are a tool in calculations, they are not real.

 

[HakimPhilo]

What do you mean with "frequency of virtual particles"? Virtual particles are a tool in calculations, they are not real.

How often they pop in/out of existence.
And actually they exist.

 

[mfb]

How often they pop in/out of existence.

As I said, that is not a meaningful question.
You cannot say "see! there was a virtual particle". They are a mathematical tool in quantum field theory.

 

[HakimPhilo]

As I said, that is not a meaningful question.
You cannot say "see! there was a virtual particle". They are a mathematical tool in quantum field theory.

So if it is not about virtual particles, then what is the cause of Quantum Brownian Motion?

 

[mfb]

Interactions with other particles, described with quantum theory.
http://arxiv.org/abs/1009.0843

 

[HakimPhilo]

Interactions with other particles, described with quantum theory.
http://arxiv.org/abs/1009.0843

I mean the what is the cause of the "nucleus random path"? And who are those particles?

 

[mfb]

I mean the what is the cause of the "nucleus random path"? And who are those particles?

Everything around the particle you consider (that is an answer to both questions).

 

[HakimPhilo]

Everything around the particle you consider (that is an answer to both questions).

Their mass must be very very small (smaller than relativistic mass of photon).