New entropic inequalities for qubit and unimodal Gaussian states

J. A. López-Saldívar, O. Castaños, M. A. Man'ko +1

The Tsallis relative entropy $S_q(\hat{\rho },\hat{\sigma })$ measures the distance between two arbitrary density matrices $\hat{\rho }$ and $\hat{\sigma }$. In this work the approximation to this quantity w…