Superconductivity in quark matter
Superconductivity in quark matter
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DOI：
10.1016/0370-2693(95)00322-c
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发表时间：
1995-05
影响因子：
4.4
通讯作者：
M. Iwasaki;T. Iwado
中科院分区：
文献类型：
--
作者：
M. Iwasaki;T. Iwado
我们探讨了由无限多个单一味夸克组成的系统的超导电性的可能性。如果我们假设这种夸克通过单胶子交换势相互作用，我们发现一对色三重态和自旋平行态的夸克之间存在吸引力。应用平均场（BCS）理论的系统，我们有一个新的超导态，具有较低的能量比正常（简并费米气体）状态。我们的系统既可以用通常的有限能隙准粒子描述，也可以用无能隙准粒子描述。
We explore the possibility of superconductivity of a system composed of an infinite number of quarks with a single flavor. If we assume that such quarks interact which each other via the one-gluon exchange potential, we find an attractive force between a pair of quarks in the color-triplet and spin-parallel state. Applying the mean field (BCS) theory to the system, we have a new superconducting state that has lower energy than the normal (degenerate Fermi gas) state. It is also shown that our system is described by both usual quasi-particles with a finite energy gap and gapless quasi-particles.