The scalar (inner) product of any quantum state by itself is equal to one for both pure and mixed states?
Saturday, 04 May 2024
by dkarayiannakis
In the realm of quantum information, the scalar (inner) product of any quantum state by itself is a fundamental concept that holds significance in the understanding of quantum systems. This scalar product, denoted as ⟨ψ|ψ⟩, where ψ represents the quantum state, provides essential information about the state itself. It serves as a measure of the
- Published in Quantum Information, EITC/QI/QIF Quantum Information Fundamentals, Quantum Information processing, Unitary transforms
Tagged under:
Density Matrix, Mixed States, Quantum Information, Quantum Mechanics, Quantum Systems, Unitary Operations
Explain the mathematical properties of quantum entropy.
Saturday, 26 August 2023
by EITCA Academy
Quantum entropy is a mathematical concept that plays a crucial role in the field of quantum cryptography. To understand the mathematical properties of quantum entropy, we must first grasp the fundamental concepts of entropy and its application in quantum systems. In classical information theory, entropy is a measure of uncertainty or randomness in a system.
- Published in Cybersecurity, EITC/IS/QCF Quantum Cryptography Fundamentals, Entropy, Quantum entropy, Examination review
Tagged under:
Cybersecurity, Density Matrix, Information Theory, Quantum Mechanics, Quantum State, Von Neumann Entropy