Collective modes in the TRSB phase of multiband superconductors
Collective modes in the TRSB phase of multiband superconductors
复制标题
多带超导体TRSB相的集体模式
DOI:
10.1016/j.phpro.2016.04.011
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Tomio Koyama
中科院分区:
文献类型:
--
作者:
Dexin Li;Yoshiya Homma;Fuminori Honda;Tomoo Yamamura and Dai Aoki;Tomio Koyama
We develop a theory for the oscillation modes of the order parameters in multiband superconductors in which all the superconducting gaps cannot be real numbers (TRSB phase) and calculate the correlation functions for the amplitude and phase modes. The vertex functions arising from the scattering between electrons and the collective modes are determined so as to satisfy the Ward-Takahashi identity. It is also shown that the multiple amplitude modes appear in the region near the pair-breaking threshold energies.