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Related Experiment Video

Updated: Nov 27, 2025

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Phase-Coherent Dynamics of Quantum Devices with Local Interactions.

Michele Filippone¹, Arthur Marguerite², Karyn Le Hur³

¹Department of Quantum Matter Physics, University of Geneva 24 Quai Ernest-Ansermet, CH-1211 Geneva, Switzerland.

Entropy (Basel, Switzerland)

|December 8, 2020

Summary

Local Fermi Liquid (LFL) theories explain quantum dot dynamics. New insights reveal inelastic effects crucial for electron emission, impacting mesoscopic capacitor experiments.

Keywords:

coulomb blockade dynamics of strongly correlated quantum systems kondo effect local fermi liquids mesoscopic physics quantum capacitor quantum dots quantum transport

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Area of Science:

Condensed Matter Physics
Quantum Computing
Mesoscopic Physics

Background:

Quantum dot devices exhibit complex low-energy dynamics due to strong electron correlations.
Local Fermi Liquid (LFL) theories provide a framework for understanding these coherent behaviors.
Mesoscopic capacitors are key systems for probing quantum phenomena like Coulomb-induced state transfer.

Purpose of the Study:

To review the application of Local Fermi Liquid theories in quantum dot devices.
To extend the understanding of LFL theories to out-of-equilibrium dynamics.
To investigate the role of inelastic effects in single electron emission and mesoscopic capacitor behavior.

Main Methods:

Utilizing effective elastic scattering theory to model strongly correlated systems.
Analyzing experimental data from mesoscopic capacitors, including Coulomb-induced quantum state transfer.
Developing theoretical approaches beyond LFLs to incorporate inelastic effects.

Main Results:

LFL theories successfully describe the equilibrium dynamics of quantum dots.
Inelastic effects are shown to be critical for triggered single electron emission.
New analysis of past experimental data reveals significant interaction effects in mesoscopic capacitors.

Conclusions:

LFL theories offer valuable insights into quantum dot low-energy physics.
Extended theoretical frameworks are necessary to capture out-of-equilibrium dynamics and inelastic scattering.
Understanding interaction effects is crucial for advancing quantum information processing with quantum dots.