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Majorana bound stat...
Majorana bound state in a coupled quantum-dot hybrid-nanowire system
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- Deng, M. T. (författare)
- National University of Defense Technology,University of Copenhagen
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- Vaitiekenas, S. (författare)
- University of Copenhagen,Free University of Berlin
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- Hansen, E. B. (författare)
- University of Copenhagen
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- Danon, J. (författare)
- University of Copenhagen
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- Leijnse, M. (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Fasta tillståndets fysik,Fysiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Solid State Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,University of Copenhagen
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- Flensberg, K. (författare)
- University of Copenhagen
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- Nygård, J. (författare)
- University of Copenhagen
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- Krogstrup, P. (författare)
- University of Copenhagen
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- Marcus, C. M. (författare)
- University of Copenhagen
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(creator_code:org_t)
- American Association for the Advancement of Science (AAAS), 2016
- 2016
- Engelska 6 s.
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Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 354:6319, s. 1557-1562
- Relaterad länk:
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http://dx.doi.org/10...
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http://arxiv.org/pdf...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Hybrid nanowires combining semiconductor and superconductor materials appear well suited for the creation, detection, and control of Majorana bound states (MBSs). We demonstrate the emergence of MBSs from coalescing Andreev bound states (ABSs) in a hybrid InAs nanowire with epitaxial Al, using a quantum dot at the end of the nanowire as a spectrometer. Electrostatic gating tuned the nanowire density to a regime of one or a few ABSs. In an applied axial magnetic field, a topological phase emerges in which ABSs move to zero energy and remain there, forming MBSs. We observed hybridization of the MBS with the end-dot bound state, which is in agreement with a numerical model. The ABS/MBS spectra provide parameters that are useful for understanding topological superconductivity in this system.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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