Signatures of a 4π-periodic supercurrent in the voltage response of capacitively shunted topological Josephson junctions

Jordi Picó-Cortés, Fernando Domínguez, and Gloria Platero Phys. Rev. B 96, 125438 (2017) We investigate theoretical aspects of the detection of Majorana bound states in Josephson junctions using the semiclassical resistively capacitively shunted junction (RCSJ) model of junction dynamics. The influence of a 4π-periodic supercurrent contribution can be detected through…

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Dispersive readout of adiabatic phases

Sigmund Kohler Phys. Rev. Lett. 119, 196802 (2017) We propose a protocol for the measurement of adiabatic phases of periodically driven quantum systems coupled to an open cavity that enables dispersive readout. It turns out that the cavity transmission exhibits peaks at frequencies determined by a resonance condition that involves…

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