Quantum Mechanics of Rolling Balls: Learn More

silagadze
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I'll appreciate references about quantum mechanics of the rolling ball.
 
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what you mean is not clear to me. could you be a bit more precise? What is a "ball"?
 
olgranpappy said:
what you mean is not clear to me. could you be a bit more precise? What is a "ball"?

Imagine a billiard ball of very small mass rolling without slipping or twisting over a plane or over some other surface. In classical case such problems involve quite a fascinating geometry. See, for example,
http://arxiv.org/abs/math/0611812 ( A. Agrachev, Rolling balls and Octonions)
 
To be even more precise, I'm interesting in articles like this
R. J. Eden, The Quantum Mechanics of Non-Holonomic Systems, Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 205, No. 1083 (Mar. 7, 1951), pp. 583-595,
which I just found.
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...
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