Recent content by andrewtz98
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Undergrad How Long Does a Particle Stay in a Quantum Potential Well?
Let's suppose I have a potential well: $$ V(x)= \begin{cases} \infty,\quad x<0\\ -V_0,\quad 0<x<R\\ \frac{\hbar^2g^2}{2mx^2},\quad x\geq R \end{cases} $$ If ##E=\frac{\hbar^2k^2}{2m}## and ##g>>1##, how can I calculate how much time a particle of mass ##m## and energy ##E## will stay inside...- andrewtz98
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- Particle Potential Potential well Quantum Quantum tunneling
- Replies: 1
- Forum: Quantum Physics
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Undergrad Finite square well bound states
Let's suppose I have a finite potential well: $$ V(x)= \begin{cases} \infty,\quad x<0\\ 0,\quad 0<x<a\\ V_o,\quad x>a. \end{cases} $$ I solved the time-independent Schrödinger equation for each region and after applying the continuity conditions of ##\Psi## and its derivative I ended up with...- andrewtz98
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- Bound Bound states Finite Finite square well Potential Quantum Schrodinger equation Square Square well States
- Replies: 1
- Forum: Quantum Physics
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Quantum state of system after measurement
Sorry about the wrong syntax. After reexamining it, I see that the only possible outcomes after the measurement of ##B## is either ##\beta_1## or ##\beta_2##, but how are the given expressions useful for the calculation of the probability of getting each state?- andrewtz98
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- Forum: Advanced Physics Homework Help
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Quantum state of system after measurement
> Operator $$\hat{A}$$ has two normalized eigenstates $$\psi_1,\psi_2$$ with > eigenvalues $$\alpha_1,\alpha_2$$. Operator $$\hat{B}$$ has also two > normalized eigenstates $$\phi_1,\phi_2$$ with eigenvalues > $$\beta_1,\beta_2$$. Eigenstates satisfy: > $$\psi_1=(\phi_1+2\phi_2)/\sqrt{5}$$ >...- andrewtz98
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- Hilbert space Measurement Operators Quantum Quantum state State System
- Replies: 3
- Forum: Advanced Physics Homework Help