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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection

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Three-photon correlations in a strongly driven atom-cavity system.

Markus Koch¹, Christian Sames, Maximilian Balbach

¹Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany. markus.koch@mpq.mpg.de

Physical Review Letters

|July 30, 2011

Summary

This summary is machine-generated.

Researchers studied quantum dynamics in a single-atom-cavity system. They observed coherent energy exchange and an asymmetry in photon detections, advancing quantum trajectory control.

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Area of Science:

Quantum optics
Atomic physics
Cavity quantum electrodynamics

Background:

Understanding quantum dynamics in strongly driven and coupled systems is crucial.
Single-atom-cavity systems serve as fundamental testbeds for quantum mechanics.
Controlling quantum trajectories requires precise manipulation of system-environment interactions.

Purpose of the Study:

To investigate the quantum dynamics of a strongly driven, strongly coupled single-atom-cavity system.
To analyze energy exchange mechanisms within the atom-cavity system and with the driving laser.
To explore the implications of detailed balance breakdown on quantum phenomena.

Main Methods:

Evaluation of time-dependent second- and third-order photon correlations.
Analysis of emitted photons from the single-atom-cavity system.
Theoretical modeling and comparison with experimental observations.

Main Results:

Observation of coherent energy exchange between the atom and cavity mode.
Demonstration of energy exchange between the atom-cavity system and the driving laser.
Detection of temporal asymmetry in three-photon events, indicating a breakdown of detailed balance.

Conclusions:

The study provides insights into the complex quantum dynamics of driven atom-cavity systems.
Observed phenomena are consistent with theoretical predictions.
This work represents a foundational step towards achieving control over quantum trajectories at higher driving strengths.