Circuit-QED: How strong can the coupling between a Josephson junction atom and a transmission line resonator be?

被引：223

作者：

Devoret, Michel ^{[1
]}

Girvin, Steven

Schoelkopf, Robert

机构：

[1] Yale Univ, Dept Appl Phys, New Haven, CT 06520 USA

[2] Coll France, F-75231 Paris 05, France

来源：

ANNALEN DER PHYSIK | 2007年 / 16卷 / 10-11期

关键词：

superconductivity; Josephson effect; mesoscopic physics;

D O I：

10.1002/andp.200710261

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

After reviewing the limitation by the fine structure constant alpha of the dimensionless coupling constant of an hydrogenic atom with a mode of the electromagnetic field in a cavity, we show that the situation presents itself differently for an artificial Josephson atom coupled to a transmission line resonator. Whereas the coupling constant for the case where such an atom is placed inside the dielectric of the resonator is proportional to alpha(1/2), the coupling of the Josephson atom when it is placed in series with the conducting elements of the resonator is proportional to alpha(-1/2) and can reach values greater than 1. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：767 / 779

页数：13

共 11 条

[1] 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

[2] Multilevel quantum description of decoherence in superconducting qubits [J].

Burkard, G ;

Koch, RH ;

DiVincenzo, DP .

PHYSICAL REVIEW B, 2004, 69 (06)

[3] Input-output theory of cavities in the ultrastrong coupling regime: The case of time-independent cavity parameters [J].

Ciuti, Cristiano ;

Carusotto, Iacopo .

PHYSICAL REVIEW A, 2006, 74 (03)

[4]

Devoret MH, 1997, LES HOUCH S, V63, P351

[5]

Haroche S., 2006, Exploring the Quantum: Atoms, Cavities, and Photons

[6]

KOCH J, IN PRESS PHYS REV A

[7]

METCALFE M, UNPUB PHYS REV B

[8]

Pozar D.M., 2005, MICROWAVE ENG

[9] Resolving photon number states in a superconducting circuit [J].

Schuster, D. I. ;

Houck, A. A. ;

Schreier, J. A. ;

Wallraff, A. ;

Gambetta, J. M. ;

Blais, A. ;

Frunzio, L. ;

Majer, J. ;

Johnson, B. ;

Devoret, M. H. ;

Girvin, S. M. ;

Schoelkopf, R. J. .

NATURE, 2007, 445 (7127) :515-518

[10] Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics [J].

Wallraff, A ;

Schuster, DI ;

Blais, A ;

Frunzio, L ;

Huang, RS ;

Majer, J ;

Kumar, S ;

Girvin, SM ;

Schoelkopf, RJ .

NATURE, 2004, 431 (7005) :162-167

← 1 2 →