Quantum Theory, namely the pure and reversible theory of information

TL;DR

This paper presents a derivation of Quantum Theory from information-theoretic principles, emphasizing its unique compatibility with pure and reversible physical processes, and offers insights into its foundational understanding.

Contribution

It introduces a non-technical derivation of Quantum Theory based on information principles, highlighting its fundamental nature and compatibility with reversibility.

Findings

Quantum Theory is uniquely compatible with pure, reversible processes.

The derivation links quantum mechanics to information-theoretic principles.

Provides a new perspective on the foundations of quantum physics.

Abstract

After more than a century since its birth, Quantum Theory still eludes our understanding. If asked to describe it, we have to resort to abstract and ad hoc principles about complex Hilbert spaces. How is it possible that a fundamental physical theory cannot be described using the ordinary language of Physics? Here we offer a contribution to the problem from the angle of Quantum Information, providing a short non-technical presentation of a recent derivation of Quantum Theory from information-theoretic principles. The broad picture emerging from the principles is that Quantum Theory is the only standard theory of information compatible with the purity and reversibility of physical processes.