Transport signatures of quasiparticle poisoning in a Majorana island

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Transport signatures of quasiparticle poisoning in a Majorana island. / Albrecht, S. M.; Hansen, E. B.; Higginbotham, A. P.; Kuemmeth, F.; Jespersen, T. S.; Nygård, J.; Jeppesen, Peter Krogstrup; Danon, J.; Flensberg, K.; Marcus, C. M.

In: Physical Review Letters, Vol. 118, No. 13, 137701, 27.03.2017.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Albrecht, SM, Hansen, EB, Higginbotham, AP, Kuemmeth, F, Jespersen, TS, Nygård, J, Jeppesen, PK, Danon, J, Flensberg, K & Marcus, CM 2017, 'Transport signatures of quasiparticle poisoning in a Majorana island', Physical Review Letters, vol. 118, no. 13, 137701. https://doi.org/10.1103/PhysRevLett.118.137701

APA

Albrecht, S. M., Hansen, E. B., Higginbotham, A. P., Kuemmeth, F., Jespersen, T. S., Nygård, J., Jeppesen, P. K., Danon, J., Flensberg, K., & Marcus, C. M. (2017). Transport signatures of quasiparticle poisoning in a Majorana island. Physical Review Letters, 118(13), [137701]. https://doi.org/10.1103/PhysRevLett.118.137701

Vancouver

Albrecht SM, Hansen EB, Higginbotham AP, Kuemmeth F, Jespersen TS, Nygård J et al. Transport signatures of quasiparticle poisoning in a Majorana island. Physical Review Letters. 2017 Mar 27;118(13). 137701. https://doi.org/10.1103/PhysRevLett.118.137701

Author

Albrecht, S. M. ; Hansen, E. B. ; Higginbotham, A. P. ; Kuemmeth, F. ; Jespersen, T. S. ; Nygård, J. ; Jeppesen, Peter Krogstrup ; Danon, J. ; Flensberg, K. ; Marcus, C. M. / Transport signatures of quasiparticle poisoning in a Majorana island. In: Physical Review Letters. 2017 ; Vol. 118, No. 13.

Bibtex

@article{830740b83b6942298e54f99273c87cd2,
title = "Transport signatures of quasiparticle poisoning in a Majorana island",
abstract = "We investigate effects of quasiparticle poisoning in a Majorana island with strong tunnel coupling to normal-metal leads. In addition to the main Coulomb blockade diamonds, {"}shadow{"} diamonds appear, shifted by 1e in gate voltage, consistent with transport through an excited (poisoned) state of the island. Comparison to a simple model yields an estimate of parity lifetime for the strongly coupled island (~ 1 {\mu}s) and sets a bound for a weakly coupled island (> 10 {\mu}s). Fluctuations in the gate-voltage spacing of Coulomb peaks at high field, reflecting Majorana hybridization, are enhanced by the reduced lever arm at strong coupling. In energy units, fluctuations are consistent with previous measurements.",
keywords = "cond-mat.mes-hall, cond-mat.supr-con, quant-ph",
author = "Albrecht, {S. M.} and Hansen, {E. B.} and Higginbotham, {A. P.} and F. Kuemmeth and Jespersen, {T. S.} and J. Nyg{\aa}rd and Jeppesen, {Peter Krogstrup} and J. Danon and K. Flensberg and Marcus, {C. M.}",
note = "[Qdev]",
year = "2017",
month = mar,
day = "27",
doi = "10.1103/PhysRevLett.118.137701",
language = "English",
volume = "118",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",

}

RIS

TY - JOUR

T1 - Transport signatures of quasiparticle poisoning in a Majorana island

AU - Albrecht, S. M.

AU - Hansen, E. B.

AU - Higginbotham, A. P.

AU - Kuemmeth, F.

AU - Jespersen, T. S.

AU - Nygård, J.

AU - Jeppesen, Peter Krogstrup

AU - Danon, J.

AU - Flensberg, K.

AU - Marcus, C. M.

N1 - [Qdev]

PY - 2017/3/27

Y1 - 2017/3/27

N2 - We investigate effects of quasiparticle poisoning in a Majorana island with strong tunnel coupling to normal-metal leads. In addition to the main Coulomb blockade diamonds, "shadow" diamonds appear, shifted by 1e in gate voltage, consistent with transport through an excited (poisoned) state of the island. Comparison to a simple model yields an estimate of parity lifetime for the strongly coupled island (~ 1 {\mu}s) and sets a bound for a weakly coupled island (> 10 {\mu}s). Fluctuations in the gate-voltage spacing of Coulomb peaks at high field, reflecting Majorana hybridization, are enhanced by the reduced lever arm at strong coupling. In energy units, fluctuations are consistent with previous measurements.

AB - We investigate effects of quasiparticle poisoning in a Majorana island with strong tunnel coupling to normal-metal leads. In addition to the main Coulomb blockade diamonds, "shadow" diamonds appear, shifted by 1e in gate voltage, consistent with transport through an excited (poisoned) state of the island. Comparison to a simple model yields an estimate of parity lifetime for the strongly coupled island (~ 1 {\mu}s) and sets a bound for a weakly coupled island (> 10 {\mu}s). Fluctuations in the gate-voltage spacing of Coulomb peaks at high field, reflecting Majorana hybridization, are enhanced by the reduced lever arm at strong coupling. In energy units, fluctuations are consistent with previous measurements.

KW - cond-mat.mes-hall

KW - cond-mat.supr-con

KW - quant-ph

U2 - 10.1103/PhysRevLett.118.137701

DO - 10.1103/PhysRevLett.118.137701

M3 - Journal article

C2 - 28409973

VL - 118

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

M1 - 137701

ER -

ID: 179319948