Open AccessPhoton emission by nanocavity-enhanced quantum anti-Zeno effect in solid-state cavity quantum-electrodynamics
Author(s) -
M. Yamaguchi,
Tanemasa Asano,
Susumu Noda
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.018067
Subject(s) - quantum zeno effect , cavity quantum electrodynamics , physics , spontaneous emission , dephasing , photon , quantum dot , purcell effect , quantum optics , coupling (piping) , atomic physics , quantum electrodynamics , quantum , quantum mechanics , open quantum system , laser , materials science , metallurgy
Solid-state cavity quantum-electrodynamics (QED) has great potential owing to advances such as coupled systems combining a nanocavity and a quantum dot (QD). These systems involve two photon-emission mechanisms: the Purcell effect in the weak coupling regime and vacuum Rabi-splitting in the strong coupling regime. In this paper, we describe a third emission mechanism based on the quantum anti-Zeno effect (AZE) induced by the pure-dephasing in a QD. This is significantly enhanced by the inherent characteristics of the nanocavity. This mechanism explains the origin of strong photon emission at a cavity mode largely detuned from a QD, previously considered a counterintuitive, prima facie non-energy-conserving, light-emission phenomenon. These findings could help in controlling the decay and emission characteristics of solid-state cavity QED, and developing solid-state quantum devices.