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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Published on: September 5, 2019

Relativistic quantum scars.

Liang Huang¹, Ying-Cheng Lai, David K Ferry

¹Department of Electrical Engineering, Arizona State University, Tempe, Arizona 85287, USA.

Physical Review Letters

|October 2, 2009

Summary

This summary is machine-generated.

Researchers found relativistic quantum scars in graphene systems, confirming their existence in chaotic quantum dynamics. These scars influence conductance fluctuations in quantum dots through resonant transmission.

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Area of Science:

Quantum mechanics
Condensed matter physics
Relativistic quantum systems

Background:

Quantum scars, concentrations of wave functions around classical periodic orbits, are a known phenomenon in physics.
The existence of quantum scars in relativistic quantum systems remains an open question.

Purpose of the Study:

To investigate the occurrence of quantum scarring in relativistic quantum systems.
To explore the implications of relativistic quantum scars on conductance in graphene-based systems.

Main Methods:

Investigated graphene confinements with classically chaotic dynamics.
Analyzed wave function concentrations and their relation to classical periodic orbits.
Studied conductance fluctuations in open quantum dots.

Main Results:

Unequivocal evidence of relativistic quantum scars was found in graphene systems.
Scarred states were observed to correlate with strong conductance fluctuations.
The mechanism of resonant transmission was identified as a key factor.

Conclusions:

Relativistic quantum scars exist in chaotic quantum systems, specifically in graphene.
These scars significantly impact the electrical conductance properties of quantum dots.