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Solve the following problem: 6. a) Find an expectation value<p> in the n" state of the...
It can be shown that for a linear harmonic oscillator the expectation value of the potential energy is equal to the expectation value of the kinetic energy, and the expectation values for r and p are clearly both zeros (0) Show that in the lowest energy state Ain agreement with the uncertainty principle (b) Confirm that for the higher states (Ax)(Ap) > h/2 . Problemi 4. ( 8 pts) It can be shown that for a linear harmonic oscillator the...
Consider the quantum mechanical vibration of H2 in the n = 1 state. Calculate the expectation value of the potential energy, (Epotential), of this vibrational state. The wavefunction for the n = 1 state is: a = 6 where a = kr for Hz is 575 N/m and u = 8.368 x 10-20 kg The potential energy operator for the quantum harmonic oscillator is: Epotential = ***
10. A harmonic oscillator with the Hamiltonian H t 2m dr? mooʻr is now subject to a 2 weak perturbation: H-ix. You are asked to solve the ground state of the new Hamiltonian - À + in two ways. (a) Solve by using the time-independent perturbation theory. Find the lowest non- vanishing order correction to the energy of the ground state. And find the lowest non vanishing order correction to the wavefunction of the ground state. (b) Find the wavefunction...
3 Problem Three [10 points] (The Quantum Oscillator) We have seen in class that the Hamiltonian of a particle of a simple Harmonic oscillator potential in one dimension can be expressed in term of the creation and annihilation operators àt and à, respectively, as: or with In >, n = 0,1,..) are the nth eigenstates of the above Hamiltonian. Part A A.1. Show that the energy levels of a simple harmonic oscillator are E,' Aw (nti), n=0, 12, A.2. Calculate...
For the simple harmonic oscillator ground state, because()0 and (p) 0 (expectation values of z and p are - Ar and Using this fact, you can estimate the ground state energy. Follow steps below for this calculation. a. For SHO potential V(z)--mw,2, write down the total energy of the ground state in terms of ΔΖ2 and p2. and constant parameters that characterize the SHO (m and w) total energy- Format Hint: Write(z*) as Δ2. not (Δε)2. The system considers two...
1. Variational method In this problem, you will approximate the ground state wave function of a quantum system using the variational theory. Use the trial wave function below 2 cos/T) , 1x1 trial a/2 to approximate the ground state of a harmonic oscillator given by 2.2 2 using a as an adjustable parameter. (a) Calculate the expectation value for the kinetic energy, (?) trial 4 points (b) Calculate the expectation value for the potential energy, Virial. Sketch ??tria, (V)trial, and...
Estimate the ground-state energy of a one-dimensional simple harmonic oscillator using (50) = e-a-l as a trial function with a to be varied. For a simple harmonic oscillator we have H + jmwºr? Recall that, for the variational method, the trial function (HO) gives an expectation value of H such that (016) > Eo, where Eo is the ground state energy. You may use: n! dH() ||= TH(c) – z[1 – H(r)], 8(2), dx S." arcade an+1 where (x) and...
Question blow and I need a, b and c, please help me. (a) Evaluate an expression for the expectation value of the potential energy for the n 3, 1-1, m = 1 wavefunction of the hydrogen atom. You need to compute the integral, where e2 [4 marks] 0 wave- 6 marks] [2 marks] Write the answer in terms of h. e and me (b) Calculate the expectation value of the kinetic energy for the n-1,- function of the hydrogen atom....
Please solve with the explanations of notations 1. The two dimensional Harmonic Oscillator has the Hamiltonian n, n'>denotes the state In> of the x-oscillator and In'> of the y-oscillator. This system is perturbed with the potential energy: Hi-Kix y. The perturbation removes the The perturbation removes the degeneracy of the states | 1,0> and |0,1> a) In first order perturbation theory find the two nondegenerate eigenstates of the full b) Find the corresponding energy eigenvalues. На Hamiltonian as normalized linear...
Please solve question 3 ,4,5,6 the state IL,tni is an eigenvestor of i and izg with eigeanvalues of +1) and mzh, respectively. Find L>and<I2> n electron is placed in a uniform magnetic field B Bok. At time t O S, was measured and was found to be h/2. (a) (5 points) Write its spin wavefunction at any later time t. (b) (5 points) Calculate < S () (5 pointa) At what time t if you mensure the y component of...