Show using (6.201) that (d mathbf{A} / d t=0). Draw an elliptical orbit in the (x-y) plane

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Show using (6.201) that \(d \mathbf{A} / d t=0\). Draw an elliptical orbit in the \(x-y\) plane and show on it the Laplace-Runge-Lenz vector \(\mathbf{A}\). The existence of this conserved vector quantity is the reason why one can smoothly deform ellipses into a circle without changing the energy of the system. Mathematically, this additional hidden symmetry implies that the Newtonian problem is equivalent to a free particle on a three-dimensional sphere embedded in an abstract four-dimensional world. It is believed that this is a mathematical accident; no physical significance of this fourth dimension has yet been identified...

Data from eq. 6.201

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Modern Classical Mechanics

ISBN: 9781108834971

1st Edition

Authors: T. M. Helliwell, V. V. Sahakian

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