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A First Course in the Sporadic SICsGeometry and Information Theory for Qubits and Qutrits

A First Course in the Sporadic SICs: Geometry and Information Theory for Qubits and Qutrits [Because we can treat quantum states as probability distributions, we can apply the concepts and methods of probability theory to them, including Shannon’s theory of information. The structures that I will discuss in the following sections came to my attention thanks to Shannon theory. In particular, the question of recurring interest is, “Out of all the extremal states of quantum state space—i.e., the ‘pure’ states ρ=ψ⟩⟨ψ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\rho = {\left| \psi \big \rangle \!\big \langle \psi \right| }$$\end{document}—which minimize the Shannon entropy of their probabilistic representation?” I will focus on the cases of dimensions 2, 3 and 8, where the so-called sporadic SICs occur. In these cases, the information-theoretic question of minimizing Shannon entropyShannon entropy leads to intricate geometrical structures.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A First Course in the Sporadic SICsGeometry and Information Theory for Qubits and Qutrits

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References (25)

Publisher
Springer International Publishing
Copyright
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2021
ISBN
978-3-030-76103-5
Pages
27 –37
DOI
10.1007/978-3-030-76104-2_3
Publisher site
See Chapter on Publisher Site

Abstract

[Because we can treat quantum states as probability distributions, we can apply the concepts and methods of probability theory to them, including Shannon’s theory of information. The structures that I will discuss in the following sections came to my attention thanks to Shannon theory. In particular, the question of recurring interest is, “Out of all the extremal states of quantum state space—i.e., the ‘pure’ states ρ=ψ⟩⟨ψ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\rho = {\left| \psi \big \rangle \!\big \langle \psi \right| }$$\end{document}—which minimize the Shannon entropy of their probabilistic representation?” I will focus on the cases of dimensions 2, 3 and 8, where the so-called sporadic SICs occur. In these cases, the information-theoretic question of minimizing Shannon entropyShannon entropy leads to intricate geometrical structures.]

Published: Jun 1, 2021

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