Cavity Quantum Electrodynamics with Separate Photon Storage and Qubit Readout Modes

被引：130

作者：

Leek, P. J. ^{[1
]}

Baur, M. ^{[1
]}

Fink, J. M. ^{[1
]}

Bianchetti, R. ^{[1
]}

Steffen, L. ^{[1
]}

Filipp, S. ^{[1
]}

Wallraff, A. ^{[1
]}

机构：

[1] ETH, Dept Phys, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 10期

基金：

瑞士国家科学基金会;

关键词：

CIRCUIT; STATES;

D O I：

10.1103/PhysRevLett.104.100504

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the realization of a cavity quantum electrodynamics setup in which photons of strongly different lifetimes are engineered in different harmonic modes of the same cavity. We achieve this in a superconducting transmission line resonator with superconducting qubits coupled to the different modes. One cavity mode is strongly coupled to a detection line for qubit state readout, while a second long lifetime mode is used for photon storage and coherent quantum operations. We demonstrate sideband-based measurement of photon coherence, generation of n photon Fock states and the scaling of the sideband Rabi frequency with root n using a scheme that may be extended to realize sideband-based two-qubit logic gates.

引用

页数：4

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