Three-phase Majorana zero modes at tiny magnetic fields

Research output: Contribution to journal › Letter › Research › peer-review

Standard

Three-phase Majorana zero modes at tiny magnetic fields. / Lesser, Omri; Flensberg, Karsten; von Oppen, Felix; Oreg, Yuval.

In: Physical Review B, Vol. 103, No. 12, 121116, 26.03.2021.

Research output: Contribution to journal › Letter › Research › peer-review

Harvard

Lesser, O, Flensberg, K, von Oppen, F & Oreg, Y 2021, 'Three-phase Majorana zero modes at tiny magnetic fields', Physical Review B, vol. 103, no. 12, 121116. https://doi.org/10.1103/PhysRevB.103.L121116

APA

Lesser, O., Flensberg, K., von Oppen, F., & Oreg, Y. (2021). Three-phase Majorana zero modes at tiny magnetic fields. Physical Review B, 103(12), [121116]. https://doi.org/10.1103/PhysRevB.103.L121116

Vancouver

Lesser O, Flensberg K, von Oppen F, Oreg Y. Three-phase Majorana zero modes at tiny magnetic fields. Physical Review B. 2021 Mar 26;103(12). 121116. https://doi.org/10.1103/PhysRevB.103.L121116

Author

Lesser, Omri ; Flensberg, Karsten ; von Oppen, Felix ; Oreg, Yuval. / Three-phase Majorana zero modes at tiny magnetic fields. In: Physical Review B. 2021 ; Vol. 103, No. 12.

Bibtex

@article{971a711a5a5e466dad8a30014e123906,
title = "Three-phase Majorana zero modes at tiny magnetic fields",
abstract = "Proposals for realizing Majorana fermions in condensed-matter systems typically rely on magnetic fields, which degrade the proximitizing superconductor and plague theMajoranas' detection. We propose an alternative scheme to realize Majoranas based only on phase-biased superconductors. The phases (at least three of them) can be biased by a tiny magnetic field threading macroscopic superconducting loops, focusing and enhancing the effect of the magnetic field onto the junction, or by supercurrents. We show how a combination of the superconducting phase winding and the spin-orbit phase induced in closed loops (Aharonov-Casher effect) facilitates a topological superconducting state with Majorana end states. We demonstrate this scheme with an analytically tractable model as well as simulations of realistic setups comprising only conventional materials.",
keywords = "TOPOLOGICAL SUPERCONDUCTIVITY, STATES, PHASE",
author = "Omri Lesser and Karsten Flensberg and {von Oppen}, Felix and Yuval Oreg",
year = "2021",
month = mar,
day = "26",
doi = "10.1103/PhysRevB.103.L121116",
language = "English",
volume = "103",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "12",

}

RIS

TY - JOUR

T1 - Three-phase Majorana zero modes at tiny magnetic fields

AU - Lesser, Omri

AU - Flensberg, Karsten

AU - von Oppen, Felix

AU - Oreg, Yuval

PY - 2021/3/26

Y1 - 2021/3/26

N2 - Proposals for realizing Majorana fermions in condensed-matter systems typically rely on magnetic fields, which degrade the proximitizing superconductor and plague theMajoranas' detection. We propose an alternative scheme to realize Majoranas based only on phase-biased superconductors. The phases (at least three of them) can be biased by a tiny magnetic field threading macroscopic superconducting loops, focusing and enhancing the effect of the magnetic field onto the junction, or by supercurrents. We show how a combination of the superconducting phase winding and the spin-orbit phase induced in closed loops (Aharonov-Casher effect) facilitates a topological superconducting state with Majorana end states. We demonstrate this scheme with an analytically tractable model as well as simulations of realistic setups comprising only conventional materials.

AB - Proposals for realizing Majorana fermions in condensed-matter systems typically rely on magnetic fields, which degrade the proximitizing superconductor and plague theMajoranas' detection. We propose an alternative scheme to realize Majoranas based only on phase-biased superconductors. The phases (at least three of them) can be biased by a tiny magnetic field threading macroscopic superconducting loops, focusing and enhancing the effect of the magnetic field onto the junction, or by supercurrents. We show how a combination of the superconducting phase winding and the spin-orbit phase induced in closed loops (Aharonov-Casher effect) facilitates a topological superconducting state with Majorana end states. We demonstrate this scheme with an analytically tractable model as well as simulations of realistic setups comprising only conventional materials.

KW - TOPOLOGICAL SUPERCONDUCTIVITY

KW - STATES

KW - PHASE

U2 - 10.1103/PhysRevB.103.L121116

DO - 10.1103/PhysRevB.103.L121116

M3 - Letter

VL - 103

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 12

M1 - 121116

ER -

ID: 269503556