Ginzburg-Landau Free Energy of Crystalline Color Superconductors: A Matrix Formalism from Solid-State Physics |
| |
Authors: | CAO Gao-Qing HE Lian-Yi |
| |
Affiliation: | 1.Department of Physics, Tsinghua University and Collaborative Innovation Center of Quantum Matter, Beijing 100084, China;2.Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA |
| |
Abstract: | The Ginzburg-Landau (GL) free energy of crystalline color superconductors is important for understanding the nature of the phase transition to the normal quark matter and predicting the preferred crystal structure. So far the GL free energy at zero temperature has only been evaluated up to the sixth order in the condensate. To give quantitative reliable predictions we need to evaluate the higher-order terms. In this work, we present a new derivation of the GL free energy by using the discrete Bloch representation of the fermion field. This derivation introduces a simple matrix formalism without any momentum constraint, which may enable us to calculate the GL free energy to arbitrary order by using a computer. |
| |
Keywords: | color superconductors LOFF pairing Ginzburg-Landau free energy |
|
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
|
点击此处可从《理论物理通讯》下载全文 |
|