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      The fractional a.c. Josephson effect in a semiconductor–superconductor nanowire as a signature of Majorana particles

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      Nature Physics

      Springer Science and Business Media LLC

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          Most cited references 27

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          Unpaired Majorana fermions in quantum wires

           A. Kitaev (2001)
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            Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures

            We propose and analyze theoretically an experimental setup for detecting the elusive Majorana particle in semiconductor-superconductor heterostructures. The experimental system consists of one-dimensional semiconductor wire with strong spin-orbit Rashba interaction embedded into a superconducting quantum interference device. We show that the energy spectra of the Andreev bound states at the junction are qualitatively different in topologically trivial (i.e., not containing any Majorana) and nontrivial phases having an even and odd number of crossings at zero energy, respectively. The measurement of the supercurrent through the junction allows one to discern topologically distinct phases and observe a topological phase transition by simply changing the in-plane magnetic field or the gate voltage. The observation of this phase transition will be a direct demonstration of the existence of Majorana particles.
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              Majorana returns

               Frank Wilczek (2009)
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                Author and article information

                Journal
                Nature Physics
                Nature Phys
                Springer Science and Business Media LLC
                1745-2473
                1745-2481
                November 2012
                September 23 2012
                November 2012
                : 8
                : 11
                : 795-799
                Article
                10.1038/nphys2429
                © 2012

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