Von Neumann Entropy by Logarithmic Method


Keywords: von Neumann, entropy


The Von Neumann entropy plays a central role in the quantum information theory and is a concave function and following the property  . In this paper, we introduce a new proof for the linearity of Von Neumann entropy in the rate without using the above inequality. Here the Von Neumann entropy is concave; that is, given weights   and density matrices . Roughly speaking, we will show that in the rate case, the Von Neumann entropy is linear without using Fannes inequality.


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Author Biography

Bijan Nikouravan

Biography of Associate Prof. Bijan Nikouravan


Prof. Dr. B. Nikouravan conducted research on the gravitational field of elliptical objects and ‎General Relativity, Theoretical Astrophysics and New Exoplanets, Cosmology, Atmospheric Physics, Structure of stars, Earthquake, Geophysics.


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How to Cite
Nikouravan, B. (2019). Von Neumann Entropy by Logarithmic Method. International Journal of Fundamental Physical Sciences (IJFPS), 9(4), 55-58. https://doi.org/10.14331/ijfps.2019.330132