Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands
We study the boundary Majorana modes for the single component p-wave weak topological superconductors or superfluids, which form zero energy flat bands protected by time-reversal symmetry in the orbital channel. However, due to the divergence of density of states, the band flatness of the edge Major...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/8/085002 |
| _version_ | 1797751415564664832 |
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| author | Yi Li Da Wang Congjun Wu |
| author_facet | Yi Li Da Wang Congjun Wu |
| author_sort | Yi Li |
| collection | DOAJ |
| description | We study the boundary Majorana modes for the single component p-wave weak topological superconductors or superfluids, which form zero energy flat bands protected by time-reversal symmetry in the orbital channel. However, due to the divergence of density of states, the band flatness of the edge Majorana modes is unstable under spontaneously generated spatial variations of Cooper pairing phases. Staggered current loops appear near the boundary and thus time-reversal symmetry is spontaneously broken in the orbital channel. This effect can appear in both condensed matter and ultra-cold atom systems. |
| first_indexed | 2024-03-12T16:48:10Z |
| format | Article |
| id | doaj.art-07657775fa1e4f70bac021e0d9abbdb7 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:48:10Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-07657775fa1e4f70bac021e0d9abbdb72023-08-08T11:26:38ZengIOP PublishingNew Journal of Physics1367-26302013-01-0115808500210.1088/1367-2630/15/8/085002Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bandsYi Li0Da Wang1Congjun Wu2Department of Physics, University of California , San Diego, CA 92093, USADepartment of Physics, University of California , San Diego, CA 92093, USADepartment of Physics, University of California , San Diego, CA 92093, USAWe study the boundary Majorana modes for the single component p-wave weak topological superconductors or superfluids, which form zero energy flat bands protected by time-reversal symmetry in the orbital channel. However, due to the divergence of density of states, the band flatness of the edge Majorana modes is unstable under spontaneously generated spatial variations of Cooper pairing phases. Staggered current loops appear near the boundary and thus time-reversal symmetry is spontaneously broken in the orbital channel. This effect can appear in both condensed matter and ultra-cold atom systems.https://doi.org/10.1088/1367-2630/15/8/085002 |
| spellingShingle | Yi Li Da Wang Congjun Wu Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands New Journal of Physics |
| title | Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands |
| title_full | Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands |
| title_fullStr | Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands |
| title_full_unstemmed | Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands |
| title_short | Spontaneous breaking of time-reversal symmetry in the orbital channel for the boundary Majorana flat bands |
| title_sort | spontaneous breaking of time reversal symmetry in the orbital channel for the boundary majorana flat bands |
| url | https://doi.org/10.1088/1367-2630/15/8/085002 |
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