Signatures of Majorana Fermions in Hybrid Superconductor-Semiconductor Nanowire Devices

American Association for the Advancement of Science (AAAS) - Tập 336 Số 6084 - Trang 1003-1007 - 2012
Vincent Mourik1, Kun Zuo1, Sergey Frolov1, Sébastien Plissard2, Erik P. A. M. Bakkers2,1, Leo P. Kouwenhoven1
1Kavli Institute of Nanoscience, Delft University of Technology, 2600 GA Delft, Netherlands.
2Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands

Tóm tắt

Majoranas Arrive When a negatively charged electron meets a positron—its positively charged antiparticle—they annihilate each other in a flash of gamma rays. A Majorana fermion, on the other hand, is a neutral particle, which is its own antiparticle. No sightings of a Majorana have been reported in the elementary particle world, but recently they have been proposed to exist in solid-state systems and suggested to be of interest as a quantum computing platform. Mourik et al. (p. 1003 , published online 12 April; see the cover; see the Perspective by Brouwer ) set up a semiconductor nanowire contacted on each end by a normal and a superconducting electrode that revealed evidence of Majorana fermions.

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Tài liệu tham khảo

Majorana E., A symmetric theory of electrons and positrons. Soryushiron Kenkyu (Engl. transl.) 63, 149 (1981) [translation from Teoria simmetrica dell’elettrone e del positrone. Nuovo Cimento 14, 171 (1937)].

10.1038/nphys1380

10.1103/Physics.3.24

10.1070/1063-7869/44/10S/S29

10.1103/PhysRevLett.100.096407

10.1103/PhysRevLett.104.040502

10.1103/PhysRevB.81.125318

10.1103/PhysRevLett.105.077001

10.1103/PhysRevLett.105.177002

Beenakker C. W. J. http://arxiv.org/abs/1112.1950 Search for Majorana fermions in superconductors. (2011).

Alicea J. http://arxiv.org/abs/1202.1293 New directions in pursuit of Majorana fermions in solid state systems. (2012).

10.1103/PhysRevLett.103.237001

10.1103/PhysRevB.82.180516

10.1103/PhysRevB.82.214509

S. R. Plissard et al . From InSb nanowires to nanocubes: Looking for the sweet spot. Nano Lett. 12 1794 (2012).

10.1021/nl901333a

Nadj-Perge S. et al.. Spectroscopy of spin-orbit quantum bits in indium antimonide nanowires. Phys. Rev. Lett. 108 166801 (2012).

10.1103/PhysRevLett.107.196804

10.1103/PhysRevB.85.064512

10.1038/nphys1811

10.1038/nphys1911

10.1103/PhysRevLett.100.197002

10.1038/35015509

10.1103/PhysRevB.65.184505

10.1103/PhysRevLett.69.510

10.1103/PhysRevLett.105.046803

10.1103/PhysRevLett.105.227003

10.1103/PhysRevLett.106.127001

10.1103/PhysRevB.84.144522

10.1103/PhysRevLett.90.256601

10.1088/1367-2630/13/5/053016

10.1103/PhysRevB.61.10267

10.1103/PhysRevLett.86.268

10.1103/RevModPhys.80.1083

Bena C. http://arxiv.org/abs/1107.2228 Metamorphosis and taxonomy of Andreev bound states. (2011).

10.1021/nl203380w