Superconducting Cavity Qubit with Tens of Milliseconds Single-Photon Coherence Time

被引：32

作者：

Milul, Ofir ^{[1
]}

Guttel, Barkay ^{[1
]}

Goldblatt, Uri ^{[1
]}

Hazanov, Sergey ^{[1
]}

Joshi, Lalit M. ^{[1
]}

Chausovsky, Daniel ^{[1
]}

Kahn, Nitzan ^{[1
]}

Ciftyurek, Engin ^{[1
]}

Lafont, Fabien ^{[1
]}

Rosenblum, Serge ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Condensed Matter Phys, Rehovot, Israel

来源：

PRX QUANTUM | 2023年 / 4卷 / 03期

基金：

欧洲研究理事会; 以色列科学基金会;

关键词：

QUANTUM ERROR-CORRECTION; STATES; CODES;

D O I：

10.1103/PRXQuantum.4.030336

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Storing quantum information for an extended period of time is essential for running quantum algo-rithms with low errors. Currently, superconducting quantum memories have coherence times of a few milliseconds, and surpassing this performance has remained an outstanding challenge. In this work, we report a single-photon qubit encoded in a novel superconducting cavity with a coherence time of 34 ms, representing an order of magnitude improvement compared to previous demonstrations. We use this long-lived quantum memory to store a Schrodinger cat state with a record size of 1024 photons, indicating the cavity's potential for bosonic quantum error correction.

引用

页数：16

共 78 条

[1] Aune B., 2000, Physical Review Special Topics-Accelerators and Beams, V3, DOI 10.1103/PhysRevSTAB.3.092001
[2] An architecture for integrating planar and 3D cQED devices
Axline, C.
Reagor, M.
Heeres, R.
Reinhold, P.
Wang, C.
Shain, K.
Pfaff, W.
Chu, Y.
Frunzio, L.
Schoelkopf, R. J.
[J]. APPLIED PHYSICS LETTERS, 2016, 109 (04)
[3] Superconducting quantum circuits at the surface code threshold for fault tolerance
Barends, R.
Kelly, J.
Megrant, A.
Veitia, A.
Sank, D.
Jeffrey, E.
White, T. C.
Mutus, J.
Fowler, A. G.
Campbell, B.
Chen, Y.
Chen, Z.
Chiaro, B.
Dunsworth, A.
Neill, C.
O'Malley, P.
Roushan, P.
Vainsencher, A.
Wenner, J.
Korotkov, A. N.
Cleland, A. N.
Martinis, John M.
[J]. NATURE, 2014, 508 (7497) : 500 - 503
[4] Fault Tolerant Quantum Computation with Very High Threshold for Loss Errors
Barrett, Sean D.
Stace, Thomas M.
[J]. PHYSICAL REVIEW LETTERS, 2010, 105 (20)
[5] One Hundred Second Bit-Flip Time in a Two-Photon Dissipative Oscillator
Berdou, C.
Murani, A.
Reglade, U.
Smith, W. C.
Villiers, M.
Palomo, J.
Rosticher, M.
Denis, A.
Morfin, P.
Delbecq, M.
Kontos, T.
Pankratova, N.
Rautschke, F.
Peronnin, T.
Sellem, L. -A
Rouchon, P.
Sarlette, A.
Mirrahimi, M.
Campagne-Ibarcq, P.
Jezouin, S.
Lescanne, R.
Leghtas, Z.
[J]. PRX QUANTUM, 2023, 4 (02):
[6] Dephasing of a superconducting qubit induced by photon noise
Bertet, P
Chiorescu, I
Burkard, G
Semba, K
Harmans, CJPM
DiVincenzo, DP
Mooij, JE
[J]. PHYSICAL REVIEW LETTERS, 2005, 95 (25)
[7] Circuit quantum electrodynamics
Blais, Alexandre
Grimsmo, Arne L.
Girvin, S. M.
Wallraffe, Andreas
[J]. REVIEWS OF MODERN PHYSICS, 2021, 93 (02)
[8] Demonstration of superconducting micromachined cavities
Brecht, T.
Reagor, M.
Chu, Y.
Pfaff, W.
Wang, C.
Frunzio, L.
Devoret, M. H.
Schoelkopf, R. J.
[J]. APPLIED PHYSICS LETTERS, 2015, 107 (19)
[9] Brecht T. L., 2017, Ph.D. thesis
[10] Multilayer microwave integrated quantum circuits for scalable quantum computing
Brecht, Teresa
Pfaff, Wolfgang
Wang, Chen
Chu, Yiwen
Frunzio, Luigi
Devoret, Michel H.
Schoelkopf, Robert J.
[J]. NPJ QUANTUM INFORMATION, 2016, 2

← 1 2 3 4 5 6 7 8 →