Switchable Ultrastrong Coupling in Circuit QED

被引：156

作者：

Peropadre, B. ^{[1
]}

Forn-Diaz, P. ^{[2
]}

Solano, E. ^{[3
,4
]}

Garcia-Ripoll, J. J. ^{[1
]}

机构：

[1] CSIC, Inst Fis Fundamental, Madrid 28006, Spain

[2] Delft Univ Technol, Kavli Inst Nanosci, Quantum Transport Grp, NL-2628 CJ Delft, Netherlands

[3] Univ Basque Country, Dept Quim Fis, E-48080 Bilbao, Spain

[4] Basque Fdn Sci, IKERBASQUE, Bilbao 48011, Spain

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 02期

关键词：

QUANTUM; STATES; PHOTON;

D O I：

10.1103/PhysRevLett.105.023601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose different designs of switchable coupling between a superconducting flux qubit and a microwave transmission line. They are based on two or more loops of Josephson junctions which are directly connected to a closed (cavity) or open transmission line. In both cases the circuit induces a coupling that can be modulated in strength, reaching the so-called ultrastrong coupling regime in which the coupling is comparable to the qubit and photon frequencies. Furthermore, we suggest a wide set of applications for the introduced architectures.

引用

收藏

页数：4

相关论文

共 31 条

[1] Vacuum Rabi splitting due to strong coupling of a flux qubit and a coplanar-waveguide resonator [J].

Abdumalikov, Abdufarrukh A., Jr. ;

Astafiev, Oleg ;

Nakamura, Yasunobu ;

Pashkin, Yuri A. ;

Tsai, JawShen .

PHYSICAL REVIEW B, 2008, 78 (18)

[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] Quantum coherence with a single Cooper pair [J].

Bouchiat, V ;

Vion, D ;

Joyez, P ;

Esteve, D ;

Devoret, MH .

PHYSICA SCRIPTA, 1998, T76 :165-170

[4] Ultrastrong coupling regime of cavity QED with phase-biased flux qubits [J].

Bourassa, J. ;

Gambetta, J. M. ;

Abdumalikov, A. A., Jr. ;

Astafiev, O. ;

Nakamura, Y. ;

Blais, A. .

PHYSICAL REVIEW A, 2009, 80 (03)

[5] Process Tomography of Field Damping and Measurement of Fock State Lifetimes by Quantum Nondemolition Photon Counting in a Cavity [J].

Brune, M. ;

Bernu, J. ;

Guerlin, C. ;

Deleglise, S. ;

Sayrin, C. ;

Gleyzes, S. ;

Kuhr, S. ;

Dotsenko, I. ;

Raimond, J. M. ;

Haroche, S. .

PHYSICAL REVIEW LETTERS, 2008, 101 (24)

[6]

CASANOVA LJ, PHYS REV B IN PRESS

[7] Coherent dynamics of a flux qubit coupled to a harmonic oscillator [J].

Chiorescu, I ;

Bertet, P ;

Semba, K ;

Nakamura, Y ;

Harmans, CJPM ;

Mooij, JE .

NATURE, 2004, 431 (7005) :159-162

[8] Quantum vacuum properties of the intersubband cavity polariton field [J].

Ciuti, C ;

Bastard, G ;

Carusotto, I .

PHYSICAL REVIEW B, 2005, 72 (11)

[9] Superconducting quantum bits [J].

Clarke, John ;

Wilhelm, Frank K. .

NATURE, 2008, 453 (7198) :1031-1042

[10] Two-photon probe of the Jaynes-Cummings model and controlled symmetry breaking in circuit QED [J].

Deppe, Frank ;

Mariantoni, Matteo ;

Menzel, E. P. ;

Marx, A. ;

Saito, S. ;

Kakuyanagi, K. ;

Tanaka, H. ;

Meno, T. ;

Semba, K. ;

Takayanagi, H. ;

Solano, E. ;

Gross, R. .

NATURE PHYSICS, 2008, 4 (09) :686-691

← 1 2 3 4 →