Tunable Resonant and Nonresonant Interactions between a Phase Qubit and LC Resonator

被引：62

作者：

Allman, M. S. ^{[1
]}

Whittaker, J. D. ^{[1
]}

Castellanos-Beltran, M. ^{[1
]}

Cicak, K. ^{[1
]}

da Silva, F. ^{[1
]}

DeFeo, M. P. ^{[1
]}

Lecocq, F. ^{[1
]}

Sirois, A. ^{[1
]}

Teufel, J. D. ^{[1
]}

Aumentado, J. ^{[1
]}

Simmonds, R. W. ^{[1
]}

机构：

[1] NIST, Boulder, CO 80305 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 12期

关键词：

SUPERCONDUCTING CIRCUITS; QUANTUM SIMULATORS; 2-PHASE QUBITS; CAVITY; STATES; TRANSFORMER;

D O I：

10.1103/PhysRevLett.112.123601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use a flux-biased radio frequency superconducting quantum interference device (rf SQUID) with an embedded flux-biased direct current SQUID to generate strong resonant and nonresonant tunable interactions between a phase qubit and a lumped-element resonator. The rf SQUID creates a tunable magnetic susceptibility between the qubit and resonator providing resonant coupling strengths from zero to near the ultrastrong coupling regime. By modulating the magnetic susceptibility, nonresonant parametric coupling achieves rates > 100 MHz. Nonlinearity of the magnetic susceptibility also leads to parametric coupling at the subharmonics of the qubit-resonator detuning.

引用

页数：6

共 47 条

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