Tuning of heat and charge transport by Majorana fermions
Abstract We investigate theoretically thermal and electrical conductances for the system consisting of a quantum dot (QD) connected both to a pair of Majorana fermions residing at the edges of a Kitaev wire and two metallic leads. We demonstrate that both quantities reveal pronounced resonances, who...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2018-02-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-018-21180-9 |
| _version_ | 1818346647711645696 |
|---|---|
| author | L. S. Ricco F. A. Dessotti I. A. Shelykh M. S. Figueira A. C. Seridonio |
| author_facet | L. S. Ricco F. A. Dessotti I. A. Shelykh M. S. Figueira A. C. Seridonio |
| author_sort | L. S. Ricco |
| collection | DOAJ |
| description | Abstract We investigate theoretically thermal and electrical conductances for the system consisting of a quantum dot (QD) connected both to a pair of Majorana fermions residing at the edges of a Kitaev wire and two metallic leads. We demonstrate that both quantities reveal pronounced resonances, whose positions can be controlled by tuning of an asymmetry of the couplings of the QD and a pair of MFs. Similar behavior is revealed for the thermopower, Wiedemann-Franz law and dimensionless thermoelectric figure of merit. The considered geometry can thus be used as a tuner of heat and charge transport assisted by MFs. |
| first_indexed | 2024-12-13T17:21:36Z |
| format | Article |
| id | doaj.art-be9502bd6a5a4e50a9266f6e47f9d1a2 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-13T17:21:36Z |
| publishDate | 2018-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-be9502bd6a5a4e50a9266f6e47f9d1a22022-12-21T23:37:18ZengNature PortfolioScientific Reports2045-23222018-02-01811810.1038/s41598-018-21180-9Tuning of heat and charge transport by Majorana fermionsL. S. Ricco0F. A. Dessotti1I. A. Shelykh2M. S. Figueira3A. C. Seridonio4Departamento de Física e Química, Unesp - Univ Estadual PaulistaDepartamento de Física e Química, Unesp - Univ Estadual PaulistaScience Institute, University of IcelandInstituto de Física, Universidade Federal FluminenseDepartamento de Física e Química, Unesp - Univ Estadual PaulistaAbstract We investigate theoretically thermal and electrical conductances for the system consisting of a quantum dot (QD) connected both to a pair of Majorana fermions residing at the edges of a Kitaev wire and two metallic leads. We demonstrate that both quantities reveal pronounced resonances, whose positions can be controlled by tuning of an asymmetry of the couplings of the QD and a pair of MFs. Similar behavior is revealed for the thermopower, Wiedemann-Franz law and dimensionless thermoelectric figure of merit. The considered geometry can thus be used as a tuner of heat and charge transport assisted by MFs.https://doi.org/10.1038/s41598-018-21180-9 |
| spellingShingle | L. S. Ricco F. A. Dessotti I. A. Shelykh M. S. Figueira A. C. Seridonio Tuning of heat and charge transport by Majorana fermions Scientific Reports |
| title | Tuning of heat and charge transport by Majorana fermions |
| title_full | Tuning of heat and charge transport by Majorana fermions |
| title_fullStr | Tuning of heat and charge transport by Majorana fermions |
| title_full_unstemmed | Tuning of heat and charge transport by Majorana fermions |
| title_short | Tuning of heat and charge transport by Majorana fermions |
| title_sort | tuning of heat and charge transport by majorana fermions |
| url | https://doi.org/10.1038/s41598-018-21180-9 |
| work_keys_str_mv | AT lsricco tuningofheatandchargetransportbymajoranafermions AT fadessotti tuningofheatandchargetransportbymajoranafermions AT iashelykh tuningofheatandchargetransportbymajoranafermions AT msfigueira tuningofheatandchargetransportbymajoranafermions AT acseridonio tuningofheatandchargetransportbymajoranafermions |