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Updated: Feb 24, 2026
05:20
Characterization of Thermal Transport in One-dimensional Solid Materials
Published on: January 26, 2014
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Pseudo-Landau Thermal Diffusion.
Jun Guo1, Guoqiang Xu2,3, Mengqi Liu1,4
1National University of Singapore, Department of Electrical and Computer Engineering, Kent Ridge 117583, Singapore.
Physical Review Letters
|February 22, 2026
Summary
Researchers created a synthetic gauge field to achieve Landau quantization in systems with dissipation. This led to the observation of a quantum thermal Hall-like effect, opening new avenues in heat transfer manipulation and non-Hermitian physics.
Area of Science:
- Condensed Matter Physics
- Quantum Phenomena
- Non-Hermitian Physics
Background:
- Landau quantization is crucial for quantum phenomena in 2D systems, typically requiring magnetic fields.
- Dissipation and the lack of pseudomagnetic fields in thermal diffusion hinder Landau quantization observation.
Purpose of the Study:
- To develop a method for achieving Landau quantization in dissipative systems.
- To explore quantum thermal Hall-like effects in the presence of dissipation.
Main Methods:
- Creating a synthetic gauge field to act as a pseudomagnetic field.
- Achieving Landau quantization on both real and imaginary spectra.
- Experimentally observing the quantum thermal Hall-like effect.
Main Results:
- Identified complex pseudo-Landau levels as isometric ladders on real and imaginary spectra.
- Observed a macroscopic quantum thermal Hall-like effect induced by dissipation.
- Demonstrated a plateaulike effective thermal resistance.
Conclusions:
- The study provides a novel method for Landau quantization in dissipative systems.
- Findings offer a new paradigm for heat transfer control.
- Established a platform for exploring dissipative non-Hermitian physics.
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