Signatures of tunable Majorana-fermion edge states
نویسندگان
چکیده
منابع مشابه
Interferometric and noise signatures of Majorana fermion edge states in transport experiments.
Domain walls between superconducting and magnetic regions placed on top of a topological insulator support transport channels for Majorana fermions. We propose to study noise correlations in a Hanbury Brown-Twiss type interferometer and find three signatures of the Majorana nature of the channels. First, the average charge current in the outgoing leads vanishes. Furthermore, we predict an anoma...
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We propose two experiments to probe the Majorana fermion edge states that occur at a junction between a superconductor and a magnet deposited on the surface of a topological insulator. Combining two Majorana fermions into a single Dirac fermion on a magnetic domain wall allows the neutral Majorana fermions to be probed with charge transport. We will discuss a novel interferometer for Majorana f...
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Alex Matos-Abiague, Javad Shabani, Andrew D. Kent, Geoffrey L. Fatin, 4 Benedikt Scharf, 5 and Igor Žutić Department of Physics, University at Buffalo, State University of New York, Buffalo, NY 14260, USA Department of Physics, City College of the City University of New York, New York, New York 10031, USA Department of Physics, New York University, New York, New York 10003, USA Department of Ph...
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We show that one-dimensional electron systems in the proximity of a superconductor that support Majorana edge states are extremely susceptible to electron-electron interactions. Strong interactions generically destroy the induced superconducting gap that stabilizes the Majorana edge states. For weak interactions, the renormalization of the gap is nonuniversal and allows for a regime in which th...
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ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2014
ISSN: 1367-2630
DOI: 10.1088/1367-2630/16/2/025004