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Updated: Jul 6, 2026
05:39
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Transport phenomena in the asymmetric quantum multibaker map.
Leonardo Ermann1, Gabriel G Carlo, Marcos Saraceno
1Departamento de Física, CNEA, Libertador 8250, (C1429BNP) Buenos Aires, Argentina.
Summary
Researchers achieved a finite quantum current using a modified quantum multibaker map, a novel method for designing quantum ratchets. This study explores quantum transport in chaotic systems by breaking symmetries.
Area of Science:
- Quantum mechanics
- Statistical mechanics
- Chaos theory
Background:
- Quantum ratchets are devices that generate directed transport.
- Understanding quantum transport mechanisms is crucial for quantum technologies.
- Symmetry breaking in quantum systems can lead to novel phenomena.
Purpose of the Study:
- To investigate the generation of directed transport in quantum systems.
- To explore a general method for designing purely quantum ratchets.
- To study directed transport phenomena in chaotic systems without bias.
Main Methods:
- Studying a modified (unbiased) quantum multibaker map.
- Analyzing the generation of net transport by breaking symmetries.
- Utilizing a paradigmatic model in classical and quantum chaos.
Main Results:
- Obtained a finite asymptotic quantum current, which has no classical analog.
- Demonstrated a general method for designing purely quantum ratchets.
- Shed light on mechanisms for net transport generation through symmetry breaking.
Conclusions:
- The modified quantum multibaker map provides a resource for studying directed transport in chaotic systems.
- The findings suggest a novel approach to quantum ratchet design.
- This research deepens the understanding of symmetry breaking's role in quantum transport.
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