Shunyu Yao
Ph.D. Student in Physics, admitted Autumn 2019
Honors & Awards
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Chi-Sun YEH Prize, Tsinghua University (2019.07)
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Tsinghua Presidential Award(清华大学特等奖学金), Tsinghua University (2018.12)
Education & Certifications
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B.S., Tsinghua University, Math and Physics (2019)
All Publications
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An integrable road to a perturbative plateau
JOURNAL OF HIGH ENERGY PHYSICS
2023
View details for DOI 10.1007/JHEP04(2023)048
View details for Web of Science ID 000971053900001
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Subleading Weingartens
JOURNAL OF HIGH ENERGY PHYSICS
2022
View details for DOI 10.1007/JHEP02(2022)200
View details for Web of Science ID 000761390100001
- Wormholes without averaging Arxiv Preprint 2103.16754. 2021
- Comments on wormholes and factorization Arxiv Preprint 2107.13130. 2021
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Non-Hermitian Topological Invariants in Real Space
PHYSICAL REVIEW LETTERS
2019; 123 (24)
View details for DOI 10.1103/PhysRevLett.123.246801
View details for Web of Science ID 000501493200007
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Non-Hermitian Skin Effect and Chiral Damping in Open Quantum Systems
PHYSICAL REVIEW LETTERS
2019; 123 (17)
View details for DOI 10.1103/PhysRevLett.123.170401
View details for Web of Science ID 000491265000001
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Non-Hermitian Chern Bands
PHYSICAL REVIEW LETTERS
2018; 121 (13): 136802
Abstract
The relation between chiral edge modes and bulk Chern numbers of quantum Hall insulators is a paradigmatic example of bulk-boundary correspondence. We show that the chiral edge modes are not strictly tied to the Chern numbers defined by a non-Hermitian Bloch Hamiltonian. This breakdown of conventional bulk-boundary correspondence stems from the non-Bloch-wave behavior of eigenstates (non-Hermitian skin effect), which generates pronounced deviations of phase diagrams from the Bloch theory. We introduce non-Bloch Chern numbers that faithfully predict the numbers of chiral edge modes. The theory is backed up by the open-boundary energy spectra, dynamics, and phase diagram of representative lattice models. Our results highlight a unique feature of non-Hermitian bands and suggest a non-Bloch framework to characterize their topology.
View details for DOI 10.1103/PhysRevLett.121.136802
View details for Web of Science ID 000445515500010
View details for PubMedID 30312068
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Edge States and Topological Invariants of Non-Hermitian Systems
PHYSICAL REVIEW LETTERS
2018; 121 (8): 086803
Abstract
The bulk-boundary correspondence is among the central issues of non-Hermitian topological states. We show that a previously overlooked "non-Hermitian skin effect" necessitates redefinition of topological invariants in a generalized Brillouin zone. The resultant phase diagrams dramatically differ from the usual Bloch theory. Specifically, we obtain the phase diagram of the non-Hermitian Su-Schrieffer-Heeger model, whose topological zero modes are determined by the non-Bloch winding number instead of the Bloch-Hamiltonian-based topological number. Our work settles the issue of the breakdown of conventional bulk-boundary correspondence and introduces the non-Bloch bulk-boundary correspondence.
View details for DOI 10.1103/PhysRevLett.121.086803
View details for Web of Science ID 000442348000009
View details for PubMedID 30192628
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Topological invariants of Floquet systems: General formulation, special properties, and Floquet topological defects
PHYSICAL REVIEW B
2017; 96 (19)
View details for DOI 10.1103/PhysRevB.96.195303
View details for Web of Science ID 000414846700001