AbstractThe KKL theorem is a fundamental result in Boolean analysis, stating that any Boolean functionhas an influential variable. Montanaro and Osbomne proposed a quantum extension of Booleanfunctions. In this context, some classical results have been extended to the guantum setting, suchas Talagrand's I-_I’ ineguality. However, a quantum version of the KKL theorem seems to bemissing, as conj...
AbstractWe introduce an quantum entropy for bimodule quantum channels on finite von Neumann algebras, generalizing the remarkable Pimsner-Popa entropy. The relative entropy for Fourier multipliers of bimodule quantum channels establishes an upper bound of the quantum entropy. Additionally, we present the Araki relative entropy for bimodule quantum channels, revealing its equivalence to the rela...