Antiresonance Phase Shift in Strongly Coupled Cavity QED
Abstract
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°-the largest ever reported for a single emitter. Our result offers a new technique for the characterization of complex integrated quantum circuits.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 2014
- DOI:
- 10.1103/PhysRevLett.112.043601
- arXiv:
- arXiv:1309.2228
- Bibcode:
- 2014PhRvL.112d3601S
- Keywords:
-
- 42.50.Pq;
- 42.50.Ct;
- 42.50.Dv;
- 32.80.-t;
- Cavity quantum electrodynamics;
- micromasers;
- Quantum description of interaction of light and matter;
- related experiments;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Photon interactions with atoms;
- Quantum Physics;
- Physics - Atomic Physics
- E-Print:
- 5 pages, 5 figures