ファインマンさんの肩に乗って

Problem 6-8In an atom the potential follows the Coulomb law only for very small radii. As the radius is increased the at...

Problem 6-7Suppose the potential energy \(V(\mathbf{r})=-e\phi(\mathbf{r})\) is the result of a charge distribution \(\r...

Problem 6-6Suppose the potential is that of a central force. Thus \(V(\mathbf{r})=V(r)\). Show that \(v(\mathbf{q})\) ca...

Problem 6-5The integral over \(t\) in Eq. (6-28) can be performed approximately using the method of stationary phase. By...

Problem 6-4Using arguments similar to those leading to Eq. (6-19), show that the wave function \(\psi(b)\) satisfies the...

Problem 6-3For a free particle, Eq. (4-29) reduces to\begin{equation}\def\pdiff#1{\frac{\partial}{\partial #1}}\def\Bpdi...

Problem 6-2Suppose a system consists of two particles which interact only through a potential \(V(x,y)\), where \(x\) re...

はてなブログ：「ファインマンさんの肩に乗って晴耕雨読の日々」に書いていた記事を今日から順にこちらに移していこう．先ずはファインマン経路積分の第6章の問題をまとめて移してしまう．Problem 6-1Suppose the potential...

Problem 6-29Suppose two perturbations, \(V(x,t)\) and \(U(x,t)\), are acting. (Examples include a combination of DC and ...

Problem 6-28Show that when a transition is impossible either directly or through a single intermediate state, but requir...

Problem 6-27Derive the perturbation expansion up through the terms of the second order for potentials periodic in time.(...