Timeline for Why don't low frequency phonons scatter electrons in a superconductor?
Current License: CC BY-SA 4.0
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| Sep 11, 2020 at 8:40 | comment | added | KF Gauss | The center of mass is still "bosonic" in the sense that many different Cooper pairs can have the same total momentum. This happens by having different individual momenta for the internal fermions that make up each pair. This is the way you reconcile Pauli exclusion for composite bosons made of fermions. However, when you talk about the phase space for a Cooper pair to scatter into, most states are Pauli-blocked for the underlaying fermions by fermions in other Cooper pairs. The only way around this blocking is to form a supercurrent where all pairs coherently have a nonzero COM momentum. | |
| Sep 11, 2020 at 6:56 | comment | added | Ruslan | "Pauli exclusion still holds even though they are composite bosons" — this sounds contradictory. What does it mean then to be a boson (even if composite)? Shouldn't the behavior of the center of mass of this composite obey Bose-Einstein statistics? | |
| Sep 11, 2020 at 6:42 | history | edited | KF Gauss | CC BY-SA 4.0 |
added 46 characters in body
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| Sep 11, 2020 at 6:37 | history | edited | KF Gauss | CC BY-SA 4.0 |
added 46 characters in body
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| Feb 19, 2019 at 8:46 | history | answered | KF Gauss | CC BY-SA 4.0 |