Physics. - 2022-05-18

When you scatter an electron you change it's energy. So if it wasn't possible to change the energy of an electron you couldn't scatter it. This is basically what happens in superconductors. In a metal at room temperature the electrons have a continuous range of energies. This means if I want to ...

Jack Rod

ok what about cooper pair? @JohnRennie\

John Rennie

I must admit I don't know exactly how the electrons pair up to form the Cooper pair.

Jack Rod

9:24 AM

sir actually I emailed this query to a super youtuber of phy

mr higgs

and he said he will reply in detail

do u know mr higgs@JohnRennie ?

John Rennie

I don't know them. Have you got a link to their channel?

Jack Rod

higgssino

name of channel

John Rennie

youtube.com/c/Higgsinophysics

The Physics of superconductors

►

I guess this is the video you are thinking of.

Jack Rod

yes

I can't agree with his cooper pair

John Rennie

He gives a rather general description of how the electrons can attract each other to form the Cooper pairs, and it's good description as far as it goes. But the actual calculation is very complicated.

Jack Rod

9:33 AM

yes do u have any recommendation

please sir

John Rennie

The theory is called Bardeen–Cooper–Schrieffer theory:

BCS theory

BCS theory or Bardeen–Cooper–Schrieffer theory (named after John Bardeen, Leon Cooper, and John Robert Schrieffer) is the first microscopic theory of superconductivity since Heike Kamerlingh Onnes's 1911 discovery. The theory describes superconductivity as a microscopic effect caused by a condensation of Cooper pairs. The theory is also used in nuclear physics to describe the pairing interaction between nucleons in an atomic nucleus. It was proposed by Bardeen, Cooper, and Schrieffer in 1957; they received the Nobel Prize in Physics for this theory in 1972. == History == Rapid progress in the...

There will be loads of web sites and books explaining it, but be warned that it's hard. I can't help because I have never studied it.

Jack Rod

actually sir we have been working on a design linked to this theory

just for fun

John Rennie

That sounds interesting. What are you working on?

Jack Rod

actually two of our friends have gone to us for a workshop on hyperloop

John Rennie

Elon Musk's hyperloop system?

Jack Rod

9:46 AM

YES

I just joined them for fun although I have no technical and theoretical participation since we are friends I am happy to learn about it

John Rennie

When that was first announced it seemed very interesting, but it doesn't seem to have gone anywhere in the years since. It seems like it will still be a long time before w can travel using Hyperloop.

@JackRod It's always fun learning about this sort of thing :-)

Jack Rod

yes

@JohnRennie by the way how is the weather in uk

here it is burning 50

John Rennie

It's really nice in the UK at the moment. About 20°C so it's warm but not too hot.

50°C!!! Good grief!

Jack Rod

indeed

John Rennie

I'm surprised you can work at all in that heat.