Timeline for Goldstone modes and Anderson-Higgs mechanism in the context of BCS theory
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 25, 2016 at 11:50 | comment | added | FraSchelle | One more time, be careful with your nomenclature. A superfluid is a quantum condensate of neutral bosonic particles (as He-4), a BCS superfluid is a quantum condensate of neutral fermionic particles (as He-3) (in a sense, they are not spin-neutral, but remains charge-neutral), a BCS superconductor (or a superconductor in short) is a quantum condensate of charged fermionic particles (as electrons). This nomenclature is not accepted by everyone, so I suggest you to define what you mean each time you use them and want to compare these different mechanism. | |
| Nov 25, 2016 at 11:46 | comment | added | FraSchelle | Goldstone and Higgs modes can be expanded in normal modes, and thus will get the usual form of creation/destruction operators. Classically, the Anderson-Higgs mode follows a massive wave equation, as can be seen from Ginzburg-Landau formalism, which you can quantise if you want. They representation from the quasi-particle is harder to give, since they are clearly dressed states. A Higgs mode is intrinsically a bosons mode dressed by the fermionic quasi-particles. You get it either by integrating out the fermionic modes in a path-integral approach in the mean-field approximation. | |
| Nov 24, 2016 at 22:36 | history | tweeted | twitter.com/StackPhysics/status/801917511541387264 | ||
| Nov 24, 2016 at 20:55 | vote | accept | Zhiyuan Wang | ||
| Nov 24, 2016 at 18:09 | answer | added | Alexey Sokolik | timeline score: 3 | |
| Nov 24, 2016 at 18:05 | answer | added | Mark Mitchison | timeline score: 7 | |
| S Nov 24, 2016 at 17:51 | history | suggested | Spoilt Milk | CC BY-SA 3.0 |
Added helpful links
|
| Nov 24, 2016 at 17:46 | review | Suggested edits | |||
| S Nov 24, 2016 at 17:51 | |||||
| Nov 24, 2016 at 17:26 | comment | added | Zhiyuan Wang | @MarkMitchison Yes. Anyway I need the operator repesentation of the Goldstone and Higgs. | |
| Nov 24, 2016 at 17:23 | history | edited | Zhiyuan Wang | CC BY-SA 3.0 |
added 48 characters in body
|
| Nov 24, 2016 at 17:05 | comment | added | Mark Mitchison | What are you calling $a_k$ and $a_k^\dagger$ here, the bare fermion creation and annihilation operators? Please edit this information into your question to make it intelligible. | |
| Nov 24, 2016 at 16:54 | history | asked | Zhiyuan Wang | CC BY-SA 3.0 |