Antiresonance Phase Shift in Strongly Coupled Cavity QED

被引：61
作者：
Sames, C. [1 ]
Chibani, H. [1 ]
Hamsen, C. [1 ]
Altin, P. A. [1 ]
Wilk, T. [1 ]
Rempe, G. [1 ]
机构：
[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源：
PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 04期
关键词：
SUPERCONDUCTING CIRCUITS; SINGLE-ATOM; INDUCED TRANSPARENCY; OPTICAL CAVITY; STATE COLLAPSE; QUANTUM; PHOTON; FLUORESCENCE; SUPPRESSION; REGIME;
D O I：
10.1103/PhysRevLett.112.043601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate phase shifts in the strong coupling regime of single-atom cavity quantum electrodynamics. On the light transmitted through the system, we observe a phase shift associated with an antiresonance and show that both its frequency and width depend solely on the atom, despite the strong coupling to the cavity. This shift is optically controllable and reaches 140 degrees-the largest ever reported for a single emitter. Our result offers a new technique for the characterization of complex integrated quantum circuits.
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页数：5
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