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

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Open quantum dots: II. Probing the classical to quantum transition.

R Brunner¹, D K Ferry, R Akis

¹Institut für Physik, Montanuniversitaet Leoben, A-8700 Leoben, Austria.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|August 9, 2012

Summary

Open quantum dots reveal how classical states transition to quantum states. This study explores their formation, quantum progression, and signatures in magnetotransport and conductance studies.

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Area of Science:

Physics
Quantum Mechanics
Condensed Matter Physics

Background:

Open quantum dots exhibit mixed classical phase space with regular orbits and chaos.
Understanding the transition from classical to quantum states in these systems is crucial.
Decoherence theory governs the quantum-to-classical evolution, as discussed previously.

Purpose of the Study:

To investigate the formation and evolution of classical states into quantum states in open quantum dots.
To identify the signatures of these transitions in experimental measurements.
To bridge the understanding between classical dynamics and quantum behavior in mesoscopic systems.

Main Methods:

Analysis of classical phase space structures within open quantum dots.
Theoretical modeling of state evolution from classical to quantum regimes.
Examination of magnetotransport and conductance data for quantum signatures.

Main Results:

Classical states in open quantum dots are characterized by mixed phase space dynamics.
A clear pathway exists for the evolution of classical states into quantum states.
Distinct signatures are observed in magnetotransport and conductance measurements.

Conclusions:

Open quantum dots serve as a valuable platform for studying classical-quantum transitions.
The formation and progression of states have identifiable experimental consequences.
This work deepens the understanding of quantum transport in mesoscopic systems.