Perspective |
Featured
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Letter |
Non-Majorana states yield nearly quantized conductance in proximatized nanowires
Majorana bound states should appear at both ends of a nanowire if it is in the topological regime. This paper reports that, in many cases, zero-bias conduction peaks only occur on one end of the wire, which casts doubt on whether they are Majoranas.
- P. Yu
- , J. Chen
- & S. M. Frolov
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Perspective |
Topological superconductivity in hybrid devices
Hybrid devices of superconductors and semiconductor nanowires may be topological and host majorana. This Perspective summarizes the current situation of the field, and highlights the developments in materials science required to make progress.
- S. M. Frolov
- , M. J. Manfra
- & J. D. Sau
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Letter |
Continuous monitoring of a trapped superconducting spin
A quasiparticle in Andreev levels was coupled to a superconducting microwave resonator and its spin was monitored in real time. This has potential applications in the readout of superconducting spin qubits and measurements of Majorana fermions.
- M. Hays
- , V. Fatemi
- & M. H. Devoret
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Letter |
Emergence of criticality through a cascade of delocalization transitions in quasiperiodic chains
The localization properties of waves in the quasiperiodic chains described by the Aubry–André model and Fibonacci model are investigated. Passing from one model to the other, the system develops a cascade of delocalization transitions.
- V. Goblot
- , A. Štrkalj
- & O. Zilberberg
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Article |
Photon-assisted tunnelling of zero modes in a Majorana wire
Majorana bound states at the end of nanowires may be used for quantum computation if they can be coupled sufficiently strongly. Here, the Copenhagen lab show strong and tunable coupling, a step along the road towards devices.
- David M. T. van Zanten
- , Deividas Sabonis
- & Charles M. Marcus
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Article |
Microwave spectroscopy of spinful Andreev bound states in ballistic semiconductor Josephson junctions
Andreev bound states in semiconductor–superconductor hybrid structures are studied using microwave spectroscopy — a tool that could be also used for investigating Majorana modes.
- David J. van Woerkom
- , Alex Proutski
- & Attila Geresdi
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Letter |
Signatures of interaction-induced helical gaps in nanowire quantum point contacts
Signatures of spin–momentum-locked gap states in nanowire quantum point contacts that have all-electrical origin could provide the conditions for the quasiparticle excitations required for topological quantum computing.
- S. Heedt
- , N. Traverso Ziani
- & Th. Schäpers
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Letter |
Parity lifetime of bound states in a proximitized semiconductor nanowire
Bound states in semiconductor–superconductor hybrids are shown to have parity lifetimes of over 10 milliseconds, suggesting that they could provide a platform for topological quantum computing.
- A. P. Higginbotham
- , S. M. Albrecht
- & C. M. Marcus
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Correspondence |
Origin of the Au/Ge(001) metallic state
- R. Heimbuch
- , M. Kuzmin
- & H. J. W. Zandvliet
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Letter |
The fractional a.c. Josephson effect in a semiconductor–superconductor nanowire as a signature of Majorana particles
The fractional alternating-current Josephson effect produces a series of steps in the current–voltage characteristics of a superconducting junction driven at radiofrequencies. This unusual phenomenon is now observed in a semiconductor–superconductor nanowire. What is more, a doubling in step size when a strong magnetic field is applied could be a possible signature of Majorana fermions, particles that are their own antiparticle.
- Leonid P. Rokhinson
- , Xinyu Liu
- & Jacek K. Furdyna
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In search of Majorana