Jian, Shao-Kai, Scherer, Michael M. ORCID: 0000-0003-0766-9949 and Yao, Hong ORCID: 0000-0003-2867-6144 (2020). Mass hierarchy in collective modes of pair-density-wave superconductors. Phys. Rev. Res., 2 (1). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2643-1564
Full text not available from this repository.Abstract
We study collective modes near the quantum critical point of a pair-density-wave (PDW) superconductor in two-dimensional Dirac systems. The fate of gaps of various collective modes is investigated by functional renormalization. For incommensurate PDW superconductors, we show that the gapless Leggett mode, protected by the emergent U(1) symmetry, can induce an exponentially small Higgs mass compared to the superconducting gap. Further, for commensurate PDW superconductors, we find an emergent mass hierarchy in the collective modes, i.e., the masses of Leggett boson, Higgs boson, and the superconducting gap can differ by several magnitudes in the infrared. This may shed light on a mechanism underlying the hierarchy problem in the standard model of particle physics.
Item Type: | Journal Article | ||||||||||||||||
Creators: |
|
||||||||||||||||
URN: | urn:nbn:de:hbz:38-349038 | ||||||||||||||||
DOI: | 10.1103/PhysRevResearch.2.013034 | ||||||||||||||||
Journal or Publication Title: | Phys. Rev. Res. | ||||||||||||||||
Volume: | 2 | ||||||||||||||||
Number: | 1 | ||||||||||||||||
Date: | 2020 | ||||||||||||||||
Publisher: | AMER PHYSICAL SOC | ||||||||||||||||
Place of Publication: | COLLEGE PK | ||||||||||||||||
ISSN: | 2643-1564 | ||||||||||||||||
Language: | English | ||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||
Subjects: | no entry | ||||||||||||||||
Uncontrolled Keywords: |
|
||||||||||||||||
URI: | http://kups.ub.uni-koeln.de/id/eprint/34903 |
Downloads
Downloads per month over past year
Altmetric
Export
Actions (login required)
View Item |