Readout of a qubit array via a single transmission line

被引：28

作者：

Jerger, M. ^{[1
,2
]}

Poletto, S. ^{[1
,2
]}

Macha, P. ^{[3
]}

Huebner, U. ^{[3
]}

Lukashenko, A. ^{[1
,2
]}

Il'ichev, E. ^{[3
]}

Ustinov, A. V. ^{[1
,2
]}

机构：

[1] Karlsruhe Inst Technol, Inst Phys, D-76128 Karlsruhe, Germany

[2] DFG Ctr Funct Nanostruct CFN, D-76128 Karlsruhe, Germany

[3] Inst Photon Technol, D-07702 Jena, Germany

来源：

EPL | 2011年 / 96卷 / 04期

关键词：

CIRCUIT;

D O I：

10.1209/0295-5075/96/40012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Frequency-selective readout for superconducting qubits opens up the way towards scaling qubit circuits without increasing the number of measurement lines. Here we demonstrate the readout of an array of 7 flux qubits located on the same chip using a single measurement line. Each qubit is placed near an individual lambda/4 resonator which, in turn, is coupled to a common microwave transmission line. We performed spectroscopy and coherent manipulation of all qubits and determined their parameters in a single measurement run. Copyright (C) EPLA, 2011

引用

页数：4

共 14 条

[1]

Abragam A., 1961, The principles of nuclear magnetism

[2] Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation [J].

Blais, A ;

Huang, RS ;

Wallraff, A ;

Girvin, SM ;

Schoelkopf, RJ .

PHYSICAL REVIEW A, 2004, 69 (06) :062320-1

[3] A broadband superconducting detector suitable for use in large arrays [J].

Day, PK ;

LeDuc, HG ;

Mazin, BA ;

Vayonakis, A ;

Zmuidzinas, J .

NATURE, 2003, 425 (6960) :817-821

[4] Preparation and measurement of three-qubit entanglement in a superconducting circuit [J].

DiCarlo, L. ;

Reed, M. D. ;

Sun, L. ;

Johnson, B. R. ;

Chow, J. M. ;

Gambetta, J. M. ;

Frunzio, L. ;

Girvin, S. M. ;

Devoret, M. H. ;

Schoelkopf, R. J. .

NATURE, 2010, 467 (7315) :574-578

[5] Direct Josephson coupling between superconducting flux qubits -: art. no. 020503 [J].

Grajcar, M ;

Izmalkov, A ;

van der Ploeg, SHW ;

Linzen, S ;

Il'ichev, E ;

Wagner, T ;

Hübner, U ;

Meyer, HG ;

van den Brink, AM ;

Uchaikin, S ;

Zagoskin, AM .

PHYSICAL REVIEW B, 2005, 72 (02)

[6] Continuous monitoring of Rabi oscillations in a Josephson flux qubit [J].

Il'ichev, E ;

Oukhanski, N ;

Izmalkov, A ;

Wagner, T ;

Grajcar, M ;

Meyer, HG ;

Smirnov, AY ;

van den Brink, AM ;

Amin, MHS ;

Zagoskin, AM .

PHYSICAL REVIEW LETTERS, 2003, 91 (09)

[7] Measurement of the ground-state flux diagram of three coupled qubits as a first step towards the demonstration of adiabatic quantum computation [J].

Izmalkov, A. ;

Grajcar, M. ;

Van der Ploeg, S. H. W. ;

Hubner, U. ;

Il'Ichev, E. ;

Meyer, H. -G. ;

Zagoskin, A. M. .

EUROPHYSICS LETTERS, 2006, 76 (03) :533-539

[8] Coupling superconducting qubits via a cavity bus [J].

Majer, J. ;

Chow, J. M. ;

Gambetta, J. M. ;

Koch, Jens ;

Johnson, B. R. ;

Schreier, J. A. ;

Frunzio, L. ;

Schuster, D. I. ;

Houck, A. A. ;

Wallraff, A. ;

Blais, A. ;

Devoret, M. H. ;

Girvin, S. M. ;

Schoelkopf, R. J. .

NATURE, 2007, 449 (7161) :443-447

[9] Rabi oscillations in a large Josephson-junction qubit [J].

Martinis, JM ;

Nam, S ;

Aumentado, J ;

Urbina, C .

PHYSICAL REVIEW LETTERS, 2002, 89 (11) :1-117901

[10]

Mazin B A, 2004, MICROWAVE KINETIC IN

← 1 2 →