dorsal/arxiv
View SchemaSpin-one Color Superconductivity in Cold and Dense Quark Matter
| Authors | Andreas Schmitt |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0405076 |
| URL | https://arxiv.org/abs/nucl-th/0405076 |
Abstract
In this thesis, several color-superconducting phases where quarks of the same flavor form Cooper pairs are investigated. In these phases, a Cooper pair carries total spin one. A systematic classification of theoretically possible phases, discriminated by the color-spin structure of the order parameter and the respective symmetry breaking pattern, is presented. In the weak-coupling limit, i.e., for asymptotically high densities, a universal form of the QCD gap equation is derived, applicable to arbitrary color-superconducting phases. It is applied to several spin-one and spin-zero phases in order to determine their energy gaps and critical temperatures. In some of the spin-one phases the resulting gap function is anisotropic and has point or line nodes. It is shown that the phases with two different gaps violate the well-known BCS relation between the critical temperature and the zero-temperature gap. Moreover, the screening properties of color superconductors regarding gluons and photons are discussed. In particular, it turns out that, contrary to spin-zero color superconductors, spin-one color superconductors exhibit an electromagnetic Meissner effect. This property is proven by symmetry arguments as well as by an explicit calculation of the gluon and photon Meissner masses.
{
"annotation_id": "9e06bedd-ef11-446d-a243-405ee980fa4b",
"date_created": "2026-03-02T18:00:01.304000Z",
"date_modified": "2026-03-02T18:00:01.304000Z",
"file_hash": "16a456107ac15361dda47c488b4376e4dba6b5c6ba08f4492f29ab55c754da46",
"private": false,
"record": {
"abstract": "In this thesis, several color-superconducting phases where quarks of the same\nflavor form Cooper pairs are investigated. In these phases, a Cooper pair\ncarries total spin one. A systematic classification of theoretically possible\nphases, discriminated by the color-spin structure of the order parameter and\nthe respective symmetry breaking pattern, is presented. In the weak-coupling\nlimit, i.e., for asymptotically high densities, a universal form of the QCD gap\nequation is derived, applicable to arbitrary color-superconducting phases. It\nis applied to several spin-one and spin-zero phases in order to determine their\nenergy gaps and critical temperatures. In some of the spin-one phases the\nresulting gap function is anisotropic and has point or line nodes. It is shown\nthat the phases with two different gaps violate the well-known BCS relation\nbetween the critical temperature and the zero-temperature gap. Moreover, the\nscreening properties of color superconductors regarding gluons and photons are\ndiscussed. In particular, it turns out that, contrary to spin-zero color\nsuperconductors, spin-one color superconductors exhibit an electromagnetic\nMeissner effect. This property is proven by symmetry arguments as well as by an\nexplicit calculation of the gluon and photon Meissner masses.",
"arxiv_id": "nucl-th/0405076",
"authors": [
"Andreas Schmitt"
],
"categories": [
"nucl-th",
"astro-ph",
"cond-mat.supr-con",
"hep-ph"
],
"title": "Spin-one Color Superconductivity in Cold and Dense Quark Matter",
"url": "https://arxiv.org/abs/nucl-th/0405076"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "d285d404-760f-45d8-99ec-785cfe66b568",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}