Superconducting tunable flux qubit with direct readout scheme

被引：10
|
作者：
Chiarello, F
Carelli, P
Castellano, MG
Cosmelli, C
Gangemi, L
Leoni, R
Poletto, S
Simeone, D
Torrioli, G
机构：
[1] CNR, Ist Foton & Nanotecnol, I-00156 Rome, Italy
[2] Univ Aquila, Dipartimento Energet, I-67040 Laquila, Italy
[3] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[4] Univ Rome 3, Dipartimento Fis, I-00146 Rome, Italy
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2005年 / 18卷 / 10期
关键词：
D O I：
10.1088/0953-2048/18/10/021
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We describe a simple and efficient scheme for the readout of a tunable flux qubit, and present preliminary experimental tests for the preparation, manipulation and final readout of the qubit state, performed in the incoherent regime at liquid helium temperature. The tunable flux qubit is realized by a double SQUID with an extra Josephson junction inserted in the large superconducting loop, and the readout is performed by applying a current ramp to the junction and recording the value for which there is a voltage response, depending on the qubit state. This preliminary work indicates the feasibility and efficiency of the scheme.
引用
收藏
页码：1370 / 1373
页数：4
相关论文
共 50 条
  • [1] 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
  • [2] Manipulation and readout of a tunable flux qubit with integrated readout: Preliminary results
    Cosmelli, Carlo
    Carelli, Pasquale
    Castellano, Maria Gabriella
    Chiarello, Fabio
    Gangemi, Lorenzo
    Leoni, Roberto
    Poletto, Stefano
    Simeone, Daniela
    Torrioli, Guido
    LOW TEMPERATURE PHYSICS, PTS A AND B, 2006, 850 : 941 - +
  • [3] Weakly Flux-Tunable Superconducting Qubit
    Chavez-Garcia, Jose M.
    Solgun, Firat
    Hertzberg, Jared B.
    Jinka, Oblesh
    Brink, Markus
    Abdo, Baleegh
    PHYSICAL REVIEW APPLIED, 2022, 18 (03)
  • [4] Readout of superconducting flux qubit state with a Cooper pair box
    Kim, Mun Dae
    Moon, K.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (22)
  • [5] Phase coherent dynamics of a superconducting flux qubit with capacitive bias readout
    Deppe, F.
    Mariantoni, M.
    Menzel, E. P.
    Saito, S.
    Kakuyanagi, K.
    Tanaka, H.
    Meno, T.
    Semba, K.
    Takayanagi, H.
    Gross, R.
    PHYSICAL REVIEW B, 2007, 76 (21)
  • [6] Nonlinear resonant behavior of a dispersive readout circuit for a superconducting flux qubit
    Lee, Janice C.
    Oliver, William D.
    Berggren, Karl K.
    Orlando, T. P.
    PHYSICAL REVIEW B, 2007, 75 (14):
  • [7] Charge- and Flux-Insensitive Tunable Superconducting Qubit
    Sete, Eyob A.
    Reagor, Matthew J.
    Didier, Nicolas
    Rigetti, Chad T.
    PHYSICAL REVIEW APPLIED, 2017, 8 (02):
  • [8] Fluxon Readout of a Superconducting Qubit
    Fedorov, Kirill G.
    Shcherbakova, Anastasia V.
    Wolf, Michael J.
    Beckmann, Detlef
    Ustinov, Alexey V.
    PHYSICAL REVIEW LETTERS, 2014, 112 (16)
  • [9] Qubit dispersive readout scheme with a microstrip superconducting quantum interference device amplifier
    Michotte, S.
    APPLIED PHYSICS LETTERS, 2009, 94 (12)
  • [10] Coherent oscillations in a superconducting tunable flux qubit manipulated without microwaves
    Poletto, S.
    Chiarello, F.
    Castellano, M. G.
    Lisenfeld, J.
    Lukashenko, A.
    Cosmelli, C.
    Torrioli, G.
    Carelli, P.
    Ustinov, A. V.
    NEW JOURNAL OF PHYSICS, 2009, 11
12345