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Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

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Published on: April 24, 2014

Bistable Photon Emission from a Solid-State Single-Atom Laser.

Neill Lambert¹, Franco Nori^1,2, Christian Flindt³

¹CEMS, RIKEN, Saitama 351-0198, Japan.

Physical Review Letters

|December 5, 2015

Summary

This summary is machine-generated.

We predict bistability in photon emission from a solid-state single-atom laser. This quantum phenomenon, observed in the photon statistics, can be controlled by modulating electronic transport in quantum dots.

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Area of Science:

Quantum optics
Solid-state physics
Nanotechnology

Background:

Single-atom lasers are crucial for quantum information processing.
Controlling photon emission statistics is key for quantum applications.
Solid-state implementations offer scalability and integration advantages.

Purpose of the Study:

To predict and theoretically demonstrate bistability in photon emission from a solid-state single-atom laser.
To establish a method for controlling photon emission statistics via electronic transport.
To assess the robustness of the predicted phenomenon against decoherence and dephasing.

Main Methods:

Theoretical modeling of a single-atom laser system.
Coupling a microwave cavity to a voltage-biased double quantum dot.
Analysis of photon emission statistics, electrical current, and shot noise.
Evaluation of system robustness against electronic decoherence and dephasing.

Main Results:

Predicted bistability in photon emission, characterized by a tilted ellipse in photon statistics.
Demonstrated that switching rates can be extracted from electrical current and shot noise.
Showcased control over photon emission statistics by modulating electronic transport.
Confirmed the prediction's robustness against moderate decoherence and dephasing.

Conclusions:

Bistability in solid-state single-atom lasers is theoretically achievable.
Electronic transport modulation offers a viable control mechanism for photon emission.
The predicted behavior is robust, supporting practical realization efforts.
This work advances the development of single-atom lasers using gate-defined quantum dots.