Von Neumann argued by means of a thought experiment involving measurements of spin observables that the quantum mechanical quantity \documentclass{aastex} \usepackage{amsbsy} \usepackage{amsfonts} ...

A college Philosophy professor wanted to teach his students the value of entropy. Entropy is a key part of the second law of thermodynamics. It is a measure of a system’s randomness, disorder, or ...

In quantum mechanics, the expression for entropy is usually taken to be -kTr(ρlnρ), where ρ is the density matrix. The convention first appears in Von Neumann's Mathematical Foundations of Quantum ...

Graduate seminar, Fall 2008. Open to graduate students only. Adam Elga (follow link for contact information, office hour). Class meeting time: Mondays 10:00am-12:50pm. Location: Marx Hall 201 Seminar ...