Experimental observation of topological quantum criticality
S. Barkhofen, S. De, J. Sperling, C. Silberhorn, A. Altland, D. Bagrets, K.W. Kim, T. Micklitz, Physical Review Research 6 (2024).
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Journal Article
| Published
| English
Author
Barkhofen, SonjaLibreCat;
De, Syamsundar;
Sperling, JanLibreCat 
;
Silberhorn, ChristineLibreCat;
Altland, Alexander;
Bagrets, Dmitry;
Kim, Kun Woo;
Micklitz, Tobias
;
Silberhorn, ChristineLibreCat;
Altland, Alexander;
Bagrets, Dmitry;
Kim, Kun Woo;
Micklitz, TobiasAbstract
<jats:p>We report on a photonic simulator of the critical state forming at the quantum phase transition between topologically distinct Anderson insulator phases. We observe a time-staggered profile in the circular photon polarization, which originates from the interplay of a chiral and sublattice symmetry, and has recently been suggested as a signature for topological Anderson criticality within the setup. We discuss the role of statistical detuning from criticality and show that the controlled breaking of phase coherence removes the signal, revealing its origin in quantum coherence.</jats:p>
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<jats:permissions>
<jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>
<jats:copyright-year>2024</jats:copyright-year>
</jats:permissions>
</jats:supplementary-material>
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Publishing Year
Journal Title
Physical Review Research
Volume
6
Issue
3
Article Number
033194
ISSN
LibreCat-ID
Cite this
Barkhofen S, De S, Sperling J, et al. Experimental observation of topological quantum criticality. Physical Review Research. 2024;6(3). doi:10.1103/physrevresearch.6.033194
Barkhofen, S., De, S., Sperling, J., Silberhorn, C., Altland, A., Bagrets, D., Kim, K. W., & Micklitz, T. (2024). Experimental observation of topological quantum criticality. Physical Review Research, 6(3), Article 033194. https://doi.org/10.1103/physrevresearch.6.033194
@article{Barkhofen_De_Sperling_Silberhorn_Altland_Bagrets_Kim_Micklitz_2024, title={Experimental observation of topological quantum criticality}, volume={6}, DOI={10.1103/physrevresearch.6.033194}, number={3033194}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Barkhofen, Sonja and De, Syamsundar and Sperling, Jan and Silberhorn, Christine and Altland, Alexander and Bagrets, Dmitry and Kim, Kun Woo and Micklitz, Tobias}, year={2024} }
Barkhofen, Sonja, Syamsundar De, Jan Sperling, Christine Silberhorn, Alexander Altland, Dmitry Bagrets, Kun Woo Kim, and Tobias Micklitz. “Experimental Observation of Topological Quantum Criticality.” Physical Review Research 6, no. 3 (2024). https://doi.org/10.1103/physrevresearch.6.033194.
S. Barkhofen et al., “Experimental observation of topological quantum criticality,” Physical Review Research, vol. 6, no. 3, Art. no. 033194, 2024, doi: 10.1103/physrevresearch.6.033194.
Barkhofen, Sonja, et al. “Experimental Observation of Topological Quantum Criticality.” Physical Review Research, vol. 6, no. 3, 033194, American Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.033194.
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