期刊
PHYSICAL REVIEW B
卷 97, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.97.041415
关键词
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资金
- National Basic Research Program of China [2011CBA00300, 2011CBA00302]
- Swiss National Science Foundation
- NCCR QSIT
- Spanish Ministry of Economy and Competitiveness [FIS2015-64654-P]
We theoretically study a Josephson junction based on a semiconducting nanowire subject to a time-dependent flux bias. We establish a general density-matrix approach for the dynamical response of the Majorana junction and calculate the resulting flux-dependent susceptibility using both microscopic and effective low-energy descriptions for the nanowire. We find that the diagonal component of the susceptibility, associated with the dynamics of the Majorana state populations, dominates over the standard Kubo contribution for a wide range of experimentally relevant parameters. The diagonal term, explored, in this Rapid Communication, in the context of Majorana physics, allows probing accurately the presence of Majorana bound states in the junction.
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