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Operators with spectral density increasing as Ω⁡(𝐸)∼𝑒Const.𝐸2
KTH, School of Electrical Engineering and Computer Science (EECS), Computer Science, Computational Science and Technology (CST).ORCID iD: 0000-0003-4906-3603
LPTMS, CNRS, Université Paris-Sud, Université Paris-Saclay, 91405 Orsay, France.
2025 (English)In: Physical Review Research, E-ISSN 2643-1564, Vol. 7, no 4, article id 043165Article in journal (Refereed) Published
Abstract [en]

Motivated by a putative model of black holes as quantum objects, we consider what types of operators would have a corresponding spectrum. We find that there are indeed such operators, but of a rather unusual type, and for which the wave functions are only barely localized. We point out a tension between such almost delocalized states and black holes as compact objects.

Place, publisher, year, edition, pages
American Physical Society (APS) , 2025. Vol. 7, no 4, article id 043165
National Category
Mathematical Analysis Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-373740DOI: 10.1103/5bxn-pt83ISI: 001619372700001Scopus ID: 2-s2.0-105022475682OAI: oai:DiVA.org:kth-373740DiVA, id: diva2:2019611
Note

QC 20251208

Available from: 2025-12-08 Created: 2025-12-08 Last updated: 2026-05-29Bibliographically approved

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Aurell, Erik

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