Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits

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

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Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits. / Schmitt, Tobias W.; Connolly, Malcolm R.; Schleenvoigt, Michael; Liu, Chenlu; Kennedy, Oscar; Chavez-Garcia, Jose M.; Jalil, Abdur R.; Bennemann, Benjamin; Trellenkamp, Stefan; Lentz, Florian; Neumann, Elmar; Lindstroem, Tobias; de Graaf, Sebastian E.; Berenschot, Erwin; Tas, Niels; Mussler, Gregor; Petersson, Karl D.; Gruetzmacher, Detlev; Schueffelgen, Peter.

In: Nano Letters, Vol. 22, No. 11, 2022, p. 2595-2602.

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

Harvard

Schmitt, TW, Connolly, MR, Schleenvoigt, M, Liu, C, Kennedy, O, Chavez-Garcia, JM, Jalil, AR, Bennemann, B, Trellenkamp, S, Lentz, F, Neumann, E, Lindstroem, T, de Graaf, SE, Berenschot, E, Tas, N, Mussler, G, Petersson, KD, Gruetzmacher, D & Schueffelgen, P 2022, 'Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits', Nano Letters, vol. 22, no. 11, pp. 2595-2602. https://doi.org/10.1021/acs.nanolett.1c04055

APA

Schmitt, T. W., Connolly, M. R., Schleenvoigt, M., Liu, C., Kennedy, O., Chavez-Garcia, J. M., Jalil, A. R., Bennemann, B., Trellenkamp, S., Lentz, F., Neumann, E., Lindstroem, T., de Graaf, S. E., Berenschot, E., Tas, N., Mussler, G., Petersson, K. D., Gruetzmacher, D., & Schueffelgen, P. (2022). Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits. Nano Letters, 22(11), 2595-2602. https://doi.org/10.1021/acs.nanolett.1c04055

Vancouver

Schmitt TW, Connolly MR, Schleenvoigt M, Liu C, Kennedy O, Chavez-Garcia JM et al. Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits. Nano Letters. 2022;22(11):2595-2602. https://doi.org/10.1021/acs.nanolett.1c04055

Author

Schmitt, Tobias W. ; Connolly, Malcolm R. ; Schleenvoigt, Michael ; Liu, Chenlu ; Kennedy, Oscar ; Chavez-Garcia, Jose M. ; Jalil, Abdur R. ; Bennemann, Benjamin ; Trellenkamp, Stefan ; Lentz, Florian ; Neumann, Elmar ; Lindstroem, Tobias ; de Graaf, Sebastian E. ; Berenschot, Erwin ; Tas, Niels ; Mussler, Gregor ; Petersson, Karl D. ; Gruetzmacher, Detlev ; Schueffelgen, Peter. / Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits. In: Nano Letters. 2022 ; Vol. 22, No. 11. pp. 2595-2602.

Bibtex

@article{194ea7ce8b064be094b6545ac4712db1,
title = "Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits",
abstract = "The integration of semiconductor Josephson junctions (JJs) in superconducting quantum circuits provides a versatile platform for hybrid qubits and offers a powerful way to probe exotic quasiparticle excitations. Recent proposals for using circuit quantum electrodynamics (cQED) to detect topological superconductivity motivate the integration of novel topological materials in such circuits. Here, we report on the realization of superconducting transmon qubits implemented with (Bi0.06Sb0.94)(2)Te-3 topological insulator (TI) JJs using ultrahigh vacuum fabrication techniques. Microwave losses on our substrates, which host monolithically integrated hardmasks used for the selective area growth of TI nanostructures, imply microsecond limits to relaxation times and, thus, their compatibility with strong-coupling cQED. We use the cavity-qubit interaction to show that the Josephson energy of TI-based transmons scales with their JJ dimensions and demonstrate qubit control as well as temporal quantum coherence. Our results pave the way for advanced investigations of topological materials in both novel Josephson and topological qubits.",
keywords = "topological insulators, Josephson junctions, selective area growth, stencil lithography, superconducting qubits",
author = "Schmitt, {Tobias W.} and Connolly, {Malcolm R.} and Michael Schleenvoigt and Chenlu Liu and Oscar Kennedy and Chavez-Garcia, {Jose M.} and Jalil, {Abdur R.} and Benjamin Bennemann and Stefan Trellenkamp and Florian Lentz and Elmar Neumann and Tobias Lindstroem and {de Graaf}, {Sebastian E.} and Erwin Berenschot and Niels Tas and Gregor Mussler and Petersson, {Karl D.} and Detlev Gruetzmacher and Peter Schueffelgen",
year = "2022",
doi = "10.1021/acs.nanolett.1c04055",
language = "English",
volume = "22",
pages = "2595--2602",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "11",

}

RIS

TY - JOUR

T1 - Integration of Topological Insulator Josephson Junctions in Superconducting Qubit Circuits

AU - Schmitt, Tobias W.

AU - Connolly, Malcolm R.

AU - Schleenvoigt, Michael

AU - Liu, Chenlu

AU - Kennedy, Oscar

AU - Chavez-Garcia, Jose M.

AU - Jalil, Abdur R.

AU - Bennemann, Benjamin

AU - Trellenkamp, Stefan

AU - Lentz, Florian

AU - Neumann, Elmar

AU - Lindstroem, Tobias

AU - de Graaf, Sebastian E.

AU - Berenschot, Erwin

AU - Tas, Niels

AU - Mussler, Gregor

AU - Petersson, Karl D.

AU - Gruetzmacher, Detlev

AU - Schueffelgen, Peter

PY - 2022

Y1 - 2022

N2 - The integration of semiconductor Josephson junctions (JJs) in superconducting quantum circuits provides a versatile platform for hybrid qubits and offers a powerful way to probe exotic quasiparticle excitations. Recent proposals for using circuit quantum electrodynamics (cQED) to detect topological superconductivity motivate the integration of novel topological materials in such circuits. Here, we report on the realization of superconducting transmon qubits implemented with (Bi0.06Sb0.94)(2)Te-3 topological insulator (TI) JJs using ultrahigh vacuum fabrication techniques. Microwave losses on our substrates, which host monolithically integrated hardmasks used for the selective area growth of TI nanostructures, imply microsecond limits to relaxation times and, thus, their compatibility with strong-coupling cQED. We use the cavity-qubit interaction to show that the Josephson energy of TI-based transmons scales with their JJ dimensions and demonstrate qubit control as well as temporal quantum coherence. Our results pave the way for advanced investigations of topological materials in both novel Josephson and topological qubits.

AB - The integration of semiconductor Josephson junctions (JJs) in superconducting quantum circuits provides a versatile platform for hybrid qubits and offers a powerful way to probe exotic quasiparticle excitations. Recent proposals for using circuit quantum electrodynamics (cQED) to detect topological superconductivity motivate the integration of novel topological materials in such circuits. Here, we report on the realization of superconducting transmon qubits implemented with (Bi0.06Sb0.94)(2)Te-3 topological insulator (TI) JJs using ultrahigh vacuum fabrication techniques. Microwave losses on our substrates, which host monolithically integrated hardmasks used for the selective area growth of TI nanostructures, imply microsecond limits to relaxation times and, thus, their compatibility with strong-coupling cQED. We use the cavity-qubit interaction to show that the Josephson energy of TI-based transmons scales with their JJ dimensions and demonstrate qubit control as well as temporal quantum coherence. Our results pave the way for advanced investigations of topological materials in both novel Josephson and topological qubits.

KW - topological insulators

KW - Josephson junctions

KW - selective area growth

KW - stencil lithography

KW - superconducting qubits

U2 - 10.1021/acs.nanolett.1c04055

DO - 10.1021/acs.nanolett.1c04055

M3 - Journal article

C2 - 35235321

VL - 22

SP - 2595

EP - 2602

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 11

ER -

ID: 315469680