<div class="csl-bib-body">
<div class="csl-entry">Bühler-Paschen, S. (2025, July 10). <i>Witnessing entanglement in a heavy fermion strange metal</i> [Conference Presentation]. International Conference on Strongly Correlated Electron Systems (SCES 2025), Montreal, Canada.</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/224814
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dc.description.abstract
It is generally considered to be notoriously difficult to define, detect, or even quantify entanglement in condensed matter systems. I will discuss the potential of the “strange metal” state to make progress. Strange metal behavior – best known as a linear-in-temperature electrical resistivity at low temperatures instead of the normal Fermi liquid square-in-temperature one – occurs across many classes of quantum materials [1,2]. Its full understanding is a major challenge. Heavy fermion compounds are particularly versatile model materials for studying this physics: they are comparatively simple, clean, and highly tunable, and several characteristics beyond linear-in-temperature resistivity have already been identified. I will give an overview and highlight recent results, including dynamical scaling of the terahertz conductivity [3], strongly suppressed shot noise [4], and a quantum Fisher information analysis of inelastic neutron scattering data [5]. The work was supported by the European Research Council (ERC Advanced Grant 101055088 “CorMeTop”), the Austrian Science Fund (FWF grants SFB F86 “Q-M&S”, I5868-N/FOR5249 “QUAST”, 10.55776/COE1 “quantA”), and the Air Force Office of Scientific Research (AFOSR project No. FA8655-24-1-7018). [1] S. Paschen, Q. Si, Nat. Rev. Phys. 3, 9 (2021). [2] J. G. Checkelsky, B. A. Bernevig, P. Coleman, Q. Si, & S. Paschen, Nat. Rev. Mater. 9, 509 (2024). [3] L. Prochaska et al., Science 367, 285 (2020). [4] L. Chen et al., Science 382, 907 (2023). [5] F. Mazza et al., arXiv:2403.12779 (2024).
en
dc.language.iso
en
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dc.subject
entanglement
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dc.subject
condensed matter systems
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dc.subject
heavy fermion compounds
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dc.title
Witnessing entanglement in a heavy fermion strange metal
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dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Conference Presentation
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tuw.publication.invited
invited
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tuw.researchTopic.id
M3
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tuw.researchTopic.id
Q6
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tuw.researchTopic.name
Metallic Materials
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tuw.researchTopic.name
Quantum Many-body Systems Physics
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tuw.researchTopic.value
30
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tuw.researchTopic.value
70
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tuw.publication.orgunit
E138-04 - Forschungsbereich Quantum Materials
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tuw.author.orcid
0000-0002-3796-0713
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tuw.event.name
International Conference on Strongly Correlated Electron Systems (SCES 2025)
