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Interacting topolog...
Interacting topological quantum chemistry of Mott atomic limits
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- Soldini, Martina O. (författare)
- University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland, Winterthurerstrasse 190
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- Astrakhantsev, Nikita (författare)
- University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland, Winterthurerstrasse 190
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- Iraola, Mikel (författare)
- Donostia International Physics Center, 20018 Donostia-San Sebastian, Spain; Department of Physics, University of the Basque Country UPV/EHU, 48080 Bilbao, Spain
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- Tiwari, Apoorv (författare)
- KTH,Kondenserade materiens teori
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- Fischer, Mark H. (författare)
- University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland, Winterthurerstrasse 190
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- Valentí, Roser (författare)
- Institut für Theoretische Physik, Goethe-Universität Frankfurt, 60438 Frankfurt am Main, Germany
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- Vergniory, Maia G. (författare)
- Donostia International Physics Center, 20018 Donostia-San Sebastian, Spain; Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
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- Wagner, Glenn (författare)
- University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland, Winterthurerstrasse 190
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- Neupert, Titus (författare)
- University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland, Winterthurerstrasse 190
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(creator_code:org_t)
- American Physical Society (APS), 2023
- 2023
- Engelska.
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Ingår i: Physical Review B. - : American Physical Society (APS). - 2469-9950 .- 2469-9969. ; 107:24
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Topological quantum chemistry (TQC) is a successful framework for identifying (noninteracting) topological materials. Based on the symmetry eigenvalues of Bloch eigenstates at maximal momenta, which are attainable from first principles calculations, a band structure can either be classified as an atomic limit, in other words adiabatically connected to independent electronic orbitals on the respective crystal lattice, or it is topological. For interacting systems, there is no single-particle band structure and hence, the TQC machinery grinds to a halt. We develop a framework analogous to TQC, but employing n-particle Green's function to classify interacting systems. Fundamentally, we define a class of interacting reference states that generalize the notion of atomic limits, which we call Mott atomic limits, and are symmetry protected topological states. Our formalism allows to fully classify these reference states (with n=2), which can themselves represent symmetry protected topological states. We present a comprehensive classification of such states in one dimension and provide numerical results on model systems. With this, we establish Mott atomic limit states as a generalization of the atomic limits to interacting systems.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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