Coherent oscillations in a superconducting tunable flux qubit manipulated without microwaves

被引：42

作者：

Poletto, S. ^{[1
]}

Chiarello, F. ^{[2
]}

Castellano, M. G. ^{[2
]}

Lisenfeld, J. ^{[1
]}

Lukashenko, A. ^{[1
]}

Cosmelli, C. ^{[3
]}

Torrioli, G. ^{[2
]}

Carelli, P. ^{[4
]}

Ustinov, A. V. ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Phys, D-76131 Karlsruhe, Germany

[2] CNR, Ist Foton & Nanotecnol, I-00156 Rome, Italy

[3] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[4] Univ Aquila, Dipartimento Ingn Elettr, I-67040 Monteluco, Italy

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

MACROSCOPIC QUANTUM STATES; PAIR;

D O I：

10.1088/1367-2630/11/1/013009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally demonstrate coherent oscillations of a tunable superconducting flux qubit by manipulating its energy potential with a nanosecond-long pulse of magnetic flux. The occupation probabilities of two persistent current states oscillate at a frequency ranging from 6 GHz to 21 GHz, tunable by changing the amplitude of the flux pulse. The demonstrated operation mode could allow quantum gates to be realized in less than 100 ps, which is much shorter than gate times attainable in other superconducting qubits. Another advantage of this type of qubit is its immunity to both thermal and magnetic field fluctuations.

引用

页数：10

共 50 条

[21] Digital Coherent Control of a Superconducting Qubit
Leonard, E., Jr.
Beck, M. A.
Nelson, J.
Christensen, B. G.
Thorbeck, T.
Howington, C.
Opremcak, A.
Pechenezhskiy, I. V.
Dodge, K.
Dupuis, N. P.
Hutchings, M. D.
Ku, J.
Schlenker, F.
Suttle, J.
Wilen, C.
Zhu, S.
Vavilov, M. G.
Plourde, B. L. T.
McDermott, R.
PHYSICAL REVIEW APPLIED, 2019, 11 (01)
[22] Tuning the Gap of a Superconducting Flux Qubit
Paauw, F. G.
Fedorov, A.
Harmans, C. J. P. M.
Mooij, J. E.
PHYSICAL REVIEW LETTERS, 2009, 102 (09)
[23] Nondestructive readout for a superconducting flux qubit
Lupascu, A
Verwijs, CJM
Schouten, RN
Harmans, CJPM
Mooij, JE
PHYSICAL REVIEW LETTERS, 2004, 93 (17) : 177006 - 1
[24] Decoherence in a superconducting flux qubit with a π-junction
Kato, T.
Golubov, A. A.
Nakamura, Y.
PHYSICAL REVIEW B, 2007, 76 (17)
[25] Parametric control of a superconducting flux qubit
Saito, S
Meno, T
Ueda, M
Tanaka, H
Semba, K
Takayanagi, H
PHYSICAL REVIEW LETTERS, 2006, 96 (10)
[26] Flux-tunable phase shifter for microwaves
Roope Kokkoniemi
Tuomas Ollikainen
Russell E. Lake
Sakari Saarenpää
Kuan Y. Tan
Janne I. Kokkala
Ceren B. Dağ
Joonas Govenius
Mikko Möttönen
Scientific Reports, 7
[27] Flux-tunable phase shifter for microwaves
Kokkoniemi, Roope
Ollikainen, Tuomas
Lake, Russell E.
Saarenpaa, Sakari
Tan, Kuan Y.
Kokkala, Janne I.
Dag, Ceren B.
Govenius, Joonas
Mottonen, Mikko
SCIENTIFIC REPORTS, 2017, 7
[28] Coherent control of a superconducting qubit using light
Warner, Hana K.
Holzgrafe, Jeffrey
Yankelevich, Beatriz
Barton, David
Poletto, Stefano
Xin, C. J.
Sinclair, Neil
Zhu, Di
Sete, Eyob
Langley, Brandon
Batson, Emma
Colangelo, Marco
Shams-Ansari, Amirhassan
Joe, Graham
Berggren, Karl K.
Jiang, Liang
Reagor, Matthew J.
Loncar, Marko
NATURE PHYSICS, 2025,
[29] Superconducting Qubit with Purcell Protection and Tunable Coupling
Gambetta, J. M.
Houck, A. A.
Blais, Alexandre
PHYSICAL REVIEW LETTERS, 2011, 106 (03)
[30] Spectroscopy of a superconducting flux qubit in a quasidispersive mode
B. I. Ivanov
I. L. Novikov
A. N. Sultanov
Ya. S. Greenberg
A. V. Krivetskii
A. G. Vostretsov
E. Il’ichev
JETP Letters, 2016, 103 : 425 - 430

← 1 2 3 4 5 →