State Ensembles and Quantum Entropy

TL;DR

This paper explores quantum ensembles and entropy measures, revealing how entropy can be manipulated in quantum games to potentially enhance information retrieval and strategic outcomes.

Contribution

It introduces alternative entropy measures for quantum ensembles and demonstrates how entropy can be increased through state addition in quantum games.

Findings

Alternative entropy measures may aid in identifying unknown pure states.

Adding pure states can increase entropy in quantum communication.

Entropy manipulation can influence quantum game strategies.

Abstract

This paper considers quantum communication involving an ensemble of states. Apart from the von Neumann entropy, it considers other measures one of which may be useful in obtaining information about an unknown pure state and another that may be useful in quantum games. It is shown that under certain conditions in a two-party quantum game, the receiver of the states can increase the entropy by adding another pure state.