Macroscopic entanglement on a hybrid quantum circuit

被引：1

作者：

He, Xiao-Ling ^{[1
]}

Li, Sheng ^{[2
]}

Liu, Yu-Shen ^{[3
]}

George, Thomas F. ^{[4
,5
,6
]}

机构：

[1] Zhejiang Univ Sci & Technol, Sch Sci, Hangzhou 310023, Zhejiang, Peoples R China

[2] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Zhejiang, Peoples R China

[3] Changshu Inst Technol, Dept Phys, Jiangsu 215500, Peoples R China

[4] Univ Missouri, Off Chancellor & Ctr Nanosci, Dept Chem, St Louis, MO 63121 USA

[5] Univ Missouri, Dept Biochem & Phys, St Louis, MO 63121 USA

[6] Univ Missouri, Dept Astron, St Louis, MO 63121 USA

来源：

PHYSICS LETTERS A | 2009年 / 373卷 / 15期

基金：

美国国家科学基金会;

关键词：

2 SUPERCONDUCTING QUBITS; PERSISTENT-CURRENT QUBIT; CHARGE QUBITS; STATE;

D O I：

10.1016/j.physleta.2009.02.012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A scheme is proposed to deterministically create maximal entanglement between hybrid artificial atoms: superconducting charge and flux qubits. By tuning the circuit, the two qubits are dynamically decoupled and entanglement can be long-lived. This provides a new version of the Einstein-Podolsdy-Rosen (EPR) situation where the components of a macroscopic EPR pair are in opposite regimes. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1329 / 1333

页数：5

共 30 条

[1] Variable electrostatic transformer: Controllable coupling of two charge qubits [J].

Averin, DV ;

Bruder, C .

PHYSICAL REVIEW LETTERS, 2003, 91 (05) :570031-570034

[2] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].

BENNETT, CH ;

BRASSARD, G ;

CREPEAU, C ;

JOZSA, R ;

PERES, A ;

WOOTTERS, WK .

PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899

[3] Entangled macroscopic quantum states in two superconducting qubits [J].

Berkley, AJ ;

Xu, H ;

Ramos, RC ;

Gubrud, MA ;

Strauch, FW ;

Johnson, PR ;

Anderson, JR ;

Dragt, AJ ;

Lobb, CJ ;

Wellstood, FC .

SCIENCE, 2003, 300 (5625) :1548-1550

[4] 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

[5] Tunable coupling of superconducting qubits [J].

Blais, A ;

van den Brink, AM ;

Zagoskin, AM .

PHYSICAL REVIEW LETTERS, 2003, 90 (12) :4

[6] Superconducting qubit storage and entanglement with nanomechanical resonators [J].

Cleland, AN ;

Geller, MR .

PHYSICAL REVIEW LETTERS, 2004, 93 (07) :070501-1

[7] 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)

[8] Switchable coupling between charge and flux qubits [J].

He, Xiao-Ling ;

You, J. Q. ;

Liu, Yu-Xi ;

Wei, L. F. ;

Nori, Franco .

PHYSICAL REVIEW B, 2007, 76 (02)

[9] Tomographic measurements on superconducting qubit states [J].

Liu, YX ;

Wei, LF ;

Nori, F .

PHYSICAL REVIEW B, 2005, 72 (01)

[10] Controllable coupling between flux qubits [J].

Liu, YX ;

Wei, LF ;

Tsai, JS ;

Nori, F .

PHYSICAL REVIEW LETTERS, 2006, 96 (06)

← 1 2 3 →