Fractional Exponential Decay in the Forbidden Region for Toeplitz Operators
Documenta mathematica, Tome 25 (2020), pp. 1315-1351
We prove several results of concentration for eigenfunctions in Toeplitz quantization. Under mild regularity assumptions, we prove that eigenfunctions are O(exp(−cNδ)) away from the corresponding level set of the symbol, where N is the inverse semiclassical parameter and 01 depends on the regularity. As an application, we prove a precise bound for the free energy of spin systems at high temperatures, sharpening a result of Lieb.
Classification :
32A36, 32J27, 32W30, 81Q10, 81Q20, 82B10
Mots-clés : compact quantizable Kähler manifolds, Berezin-Toeplitz operators
Mots-clés : compact quantizable Kähler manifolds, Berezin-Toeplitz operators
@article{10_4171_dm_778,
author = {Alix Deleporte},
title = {Fractional {Exponential} {Decay} in the {Forbidden} {Region} for {Toeplitz} {Operators}},
journal = {Documenta mathematica},
pages = {1315--1351},
year = {2020},
volume = {25},
doi = {10.4171/dm/778},
url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/778/}
}
Alix Deleporte. Fractional Exponential Decay in the Forbidden Region for Toeplitz Operators. Documenta mathematica, Tome 25 (2020), pp. 1315-1351. doi: 10.4171/dm/778
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