Oct 24, 2011 · A correct and simple definition: "quantum physics" is a collection of models of physical phenomena which use the mathematics of "Hilbert space" to make operational …

Sep 30, 2019 · I heard that a wavefunction applies to a quantum system. But what is a quantum system? I am new to quantum mechanics, sorry for asking a basic question.

2 What is coherence and quantum entanglement? Does it mean that two particles are the same? No, coherence means a mathematical relationship that remains invariant . Entanglement is …

Aug 31, 2021 · Second, we can use a state to predict the outcomes of observations. This general picture applies to classical mechanics, thermodynamics, chemistry, control theory, software …

Dec 6, 2018 · What is the use of eigenvalue and eigenfunction in quantum mechanics specially Schrodinger equation? What is the physical meaning of having an eigenvalue and …

Jul 12, 2019 · As for your questions: What is temperature in terms of quantum mechanics? This is, how is temperature connected to quantum concepts like position, momentum, angular …

Jan 20, 2012 · 18 I see the phrase 'dynamical variable' in several of my texts and they don't really define it. A google search doesn't yield much either. I have gathered that a dynamical variable …

Nov 23, 2020 · That quantum mechanics contains classical physics as a limit is false, for starters. Many quantum phenomena survive all the way to the classical scale and actually contradict …

Jan 27, 2022 · In classical physics (as opposed to quantum physics), inertial mass is defined ultimately by its role in Newton's second law. This is the one which says that rate of change of …

Aug 16, 2015 · Are you talking quantum field theory where there are operator valued fields defined in space and locality is about operators determined by spacelike separated regions …