Inequalities related to free entropy derived from random matrix approximation

Details Inequalities related to free entropy derived from random matrix approximation Inequalities related to free entropy derived from random matrix approximation

2003-10-29

arxiv.org/abs/math/0310453v1

Mathematics

Operator Algebras

Scientific paper

Biane proved the free analog of the logarithmic Sobolev inequality for probability measures on the real line by means of random matrix approximation procedure. We show that the same method can be applied to reprove Biane and Voiculescu's free analog of Talagrand's transportation cost inequality for measures on the real line. Furthermore, we prove the free analogs of the logarithmic Sobolev inequality and the transportation cost inequality for measures on 1-dimensional torus as well by extending the method to special unitary random matrices.

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