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Observation of a Topological Transition in the Bulk of a Non-Hermitian System
Open accessAbstract
We present the first experimental observation of a topological transition in a non-Hermitian system. In contrast to standard methods for examining topological properties, which involve probing edge (or surface) states, we monitor the topological transition by employing bulk dynamics only. The system is composed of a lattice of evanescently coupled optical waveguides, and non-Hermitian behavior is engineered by inducing bending loss by spatially "wiggling" every second waveguide.
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“The manipulation and manifestation of the wave function and band modes can be appropriately mapped to the robustly certain observables in 1D real space [26, 27].”
From Observing movement of Dirac cones from single-photon dynamics (2021) · cites this paper as [26]
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Cites
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Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
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Quantum Spin Hall Insulator State in HgTe Quantum Wells
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A topological Dirac insulator in a quantum spin Hall phase
Hsieh, D., Qian, D., Wray, L., Xia, Y., Hor, Y. S., Cava, R. J., & Hasan, M. Z. (2008) · Nature · doi:10.1038/nature06843 · Cited by 3,523
Photonic Floquet topological insulators
Rechtsman, M. C., Zeuner, J. M., Plotnik, Y., Lumer, Y., Podolsky, D., Dreisow, F., Nolte, S., Segev, M., & Szameit, A. (2013) · Nature · doi:10.1038/nature12066 · Cited by 3,332
Self-citationObservation of unidirectional backscattering-immune topological electromagnetic states
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Quantum mechanics (non relativistic theory)
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Ozawa, T., Price, H. M., Amo, A., Goldman, N., Hafezi, M., Lu, L., Rechtsman, M. C., Schuster, D., Simon, J., Zilberberg, O., et al. (2019) · Reviews of Modern Physics · doi:10.1103/revmodphys.91.015006 · Cited by 3,722
Self-citationEdge States and Topological Invariants of Non-Hermitian Systems
Yao, S., & Wang, Z. (2018) · Physical Review Letters · doi:10.1103/physrevlett.121.086803 · Cited by 2,250
Ashida, Y., Gong, Z., & Ueda, M. (2020) · Advances In Physics · doi:10.1080/00018732.2021.1876991 · Cited by 2,100
Parity–time symmetry and exceptional points in photonics
Özdemir, Ş. K., Rotter, S., Nori, F., & Yang, L. (2019) · Nature Materials · doi:10.1038/s41563-019-0304-9 · Cited by 1,764
Exceptional topology of non-Hermitian systems
Bergholtz, E. J., Budich, J. C., & Kunst, F. K. (2021) · Reviews of Modern Physics · doi:10.1103/revmodphys.93.015005 · Cited by 1,711
Metadata
- Authors
- Zeuner, J. M., Rechtsman, M. C., Plotnik, Y., Lumer, Y., Nolte, S., Rudner, M. S., Segev, M., & Szameit, A.
- Affiliations
- Friedrich Schiller University Jena (DE)
- Pennsylvania State University (US)
- Technion – Israel Institute of Technology (IL)
- ORCID
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2015-07-23
- Volume
- 115
- Issue
- 4
- Pages
- 040402-040402
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1625951388
- Cited by
- 730
- References
- 50
- Citations by year
- 2026: 43 · 2025: 39 · 2024: 59 · 2023: 65 · 2022: 85 · 2021: 89 · 2020: 101 · 2019: 110 · 2018: 65 · 2017: 39 · 2016: 30 · 2015: 4
- FWCI
- 23.38
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
- Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
- Funders
- German Ministry of Education and Research (03Z1HN31)
- Deutsche Forschungsgemeinschaft (NO462/6-1, SZ276/7-1)
- German-Israeli Foundation for Scientific Research and Development (1157-127.14/2011)
- Israel Science Foundation
- Villum Fonden
- Research Executive Agency (PIIF-GA-2013-627838)
- ICORE
- Binational USA-Israel Science Foundation
- European Union’s Seventh Framework Programme (FP7/2007-2013)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Non-Hermitian Physics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Topological Materials and Phenomena
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Random lasers and scattering media
- Keywords
- topological phase transition, non-Hermitian systems, bending loss, waveguide arrays, topological photonics
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