Free transport for convex potentials

Free transport for convex potentials

We construct non-commutative analogs of transport maps among free Gibbs state satisfying a certain convexity condition. Unlike previous constructions, our approach is non-perturbative in nature and thus can be used to construct transport maps between free Gibbs states associated to potentials which...

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Veröffentlicht in:New Zealand journal of mathematics 2021, Vol.52, p.259-359
Hauptverfasser: Dabrowski, Yoann, Guionnet, Alice, Shlyakhtenko, Dima
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Probability
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creator Dabrowski, Yoann
Guionnet, Alice
Shlyakhtenko, Dima
description We construct non-commutative analogs of transport maps among free Gibbs state satisfying a certain convexity condition. Unlike previous constructions, our approach is non-perturbative in nature and thus can be used to construct transport maps between free Gibbs states associated to potentials which are far from quadratic, i.e., states which are far from the semicircle law. An essential technical ingredient in our approach is the extension of free stochastic analysis to non-commutative spaces of functions based on the Haagerup tensor product.
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subjects Mathematics
Probability
title Free transport for convex potentials
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