Three-dimensional quantum Hall states as a chiral electromagnetic filter
Abstract
Extensive research has explored the optical properties of topological insulating materials, driven by their inherent stability and potential applications. In this study, we unveil a functionality of three-dimensional integer quantum Hall (3D IQH) states as broadband filters for circularly polarized light, particularly effective in the terahertz (THz) frequency range under realistic system parameters. We also investigate the impact of practical imperfections, demonstrating the resilience of this filtering effect. Our findings reveal that this phenomenon is independent of the microscopic origin of the 3D IQH state, prompting discussions of its feasibility across diverse candidate materials. These results contribute to our understanding of fundamental optical properties and hold promise for practical applications in optical technologies.
Copyright and License
©2024 American Physical Society.
Acknowledgement
We acknowledge insightful discussions with J. Alicea, C. B. Dag, A. Grushin, S. D. Huber, P. A. Lee, and P. Moll. This work was primarily led and supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Science Center (N.M.). V.P. is grateful for the generous support from the Gordon and Betty Moore Foundation's EPiQS Initiative, Grant No. GBMF8682. N.M. and V.P. appreciate the support received from the Institute of Quantum Information and Matter.
Funding
This work was primarily led and supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Science Center (N.M.). V.P. is grateful for the generous support from the Gordon and Betty Moore Foundation's EPiQS Initiative, Grant No. GBMF8682. N.M. and V.P. appreciate the support received from the Institute of Quantum Information and Matter.
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PhysRevB.110.L201115.pdf
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Additional details
Related works
- Is new version of
- Discussion Paper: arXiv:2405.09617 (arXiv)
Funding
- United States Department of Energy
- Gordon and Betty Moore Foundation
- GBMF8682
Dates
- Accepted
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2024-11-07Accepted