Coulomb Blockade of a Nearly Open Majorana Island
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Dokumenter
- PhysRevLett.122.016801
Forlagets udgivne version, 262 KB, PDF-dokument
We consider the ground-state energy and the spectrum of the low-energy excitations of a Majorana island formed of topological superconductors connected by a single-mode junction of arbitrary transmission. Coulomb blockade results in e-periodic modulation of the energies with the gate-induced charge. We find the amplitude of modulation as a function of reflection coefficient R. The amplitude scales as R in the limit R→0. At larger R, the dependence of the amplitude on the Josephson and charging energies is similar to that of a conventional-superconductor Cooper-pair box. The crossover value of R is small and depends on the ratio of the charging energy to superconducting gap.
Originalsprog | Engelsk |
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Artikelnummer | 016801 |
Tidsskrift | Physical Review Letters |
Vol/bind | 122 |
Udgave nummer | 1 |
Antal sider | 5 |
ISSN | 0031-9007 |
DOI | |
Status | Udgivet - 3 jan. 2019 |
Links
- https://arxiv.org/pdf/1809.01660
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