Landau-Zener-St\"uckelberg-Majorana interferometry of a superconducting qubit in front of a mirror

Landau-Zener-Stückelberg-Majorana interferometry of a superconducting qubit in front of a mirror

P. Y. Wen, O. V. Ivakhnenko, M. A. Nakonechnyi, B. Suri, J.-J. Lin, W.-J. Lin, J. C. Chen, S. N. Shevchenko, Franco Nori, and I.-C. Hoi

Phys. Rev. B 102, 075448 – Published 31 August 2020

Abstract

We investigate the Landau-Zener-Stückelberg-Majorana interferometry of a superconducting qubit in a semi-infinite transmission line terminated by a mirror. The transmon-type qubit is at the node of the resonant electromagnetic (EM) field, “hiding” from the EM field. We modulate the resonant frequency of the qubit by applying a sinusoidal flux pump. We perform spectroscopy by measuring the reflection coefficient of a weak probe in the system. Remarkable interference patterns emerge in the spectrum, which can be interpreted as multiphoton resonances in the dressed qubit. Our calculations agree well with the experiments.

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Received 1 March 2020
Revised 19 July 2020
Accepted 16 August 2020

DOI:https://doi.org/10.1103/PhysRevB.102.075448

Physics Subject Headings (PhySH)

Landau-Zener effect Mesoscopics Quantum interference effects

Superconducting qubits

Interferometry Quantum master equation

Condensed Matter, Materials & Applied PhysicsQuantum Information, Science & Technology

Authors & Affiliations

P. Y. Wen¹, O. V. Ivakhnenko^2,3, M. A. Nakonechnyi², B. Suri⁴, J.-J. Lin¹, W.-J. Lin⁵, J. C. Chen¹, S. N. Shevchenko ^2,3,6,*, Franco Nori ^3,7, and I.-C. Hoi^1,8,†

¹Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
²B. Verkin Institute for Low Temperature Physics and Engineering, Kharkov 61103, Ukraine
³Theoretical Quantum Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wako-shi, Saitama 351-0198, Japan
⁴Department of Instrumentation and Applied Physics, Indian Institute of Science, Bengaluru 560012, India
⁵Department of Physics, National Taiwan University, Taipei 10617, Taiwan
⁶V. N. Karazin Kharkiv National University, Kharkov 61022, Ukraine
⁷Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
⁸Center for Quantum Technology, National Tsing Hua University, Hsinchu 30013, Taiwan

^*sshevchenko@ilt.kharkov.ua
^†ichoi@phys.nthu.edu.tw

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Vol. 102, Iss. 7 — 15 August 2020

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Physical Review B

covering condensed matter and materials physics

Landau-Zener-Stückelberg-Majorana interferometry of a superconducting qubit in front of a mirror

P. Y. Wen, O. V. Ivakhnenko, M. A. Nakonechnyi, B. Suri, J.-J. Lin, W.-J. Lin, J. C. Chen, S. N. Shevchenko, Franco Nori, and I.-C. Hoi

Phys. Rev. B 102, 075448 – Published 31 August 2020

Abstract

Physics Subject Headings (PhySH)

Authors & Affiliations

Article Text (Subscription Required)

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Physical Review B

covering condensed matter and materials physics

Landau-Zener-Stückelberg-Majorana interferometry of a superconducting qubit in front of a mirror

P. Y. Wen, O. V. Ivakhnenko, M. A. Nakonechnyi, B. Suri, J.-J. Lin, W.-J. Lin, J. C. Chen, S. N. Shevchenko, Franco Nori, and I.-C. Hoi

Phys. Rev. B 102, 075448 – Published 31 August 2020

Abstract

Physics Subject Headings (PhySH)

Authors & Affiliations

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