Harmonic Oscillator: Determine the expectation value of the position of a harmonic oscillator in its ground...
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...
1. Quantum harmonic oscillator (a) Derive formula for standard deviation of position measurement on a particle prepared in the ground state of harmonic oscillator. The formula will depend on h, m andw (b) Estimate order of magnitude of the standard deviation in (a) for the LIGO mirror of mass 10 kg and w 1 Hz. (c) A coherent state lo) is defined to be the eigenstate of the lowering operator with eigenvalue a, i.e. à lo)a) Write la) as where...
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...
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) Wave function for the ground state of an harmonic oscillator is given by. (x) = A1/2 (a/T)1/4 e-ax /2 Evaluate the expectation value <x<> for this wave state (ove (Hint: Joo.co u² e-a u du = 2;. ue-au du = (1/2a) (Tc/a)2) pace)
4. (20 points) Harmonic Oscillator The ground state wave function of a simple harmonic oscillator is (a) = Ae-42", where a = (a) Using the normalization condition, obtain the constant A. (b) Find (c), (), and Az, using the result of A obtained in (a). Again, A.= V(32) - (2) (c) Find (p) and Ap. For the latter, you need to evaluate (p). Hint: For a harmonic oscillator, the time-averaged kinetic energy is equal to the time-averaged potential energy, and...
For the ground state of a quantum harmonic oscillator, given by ?_0 = (?^(-1/2)*?^(-1/4))*?^(-(x^2)/(2?^2)) , show that the expectation values for potential and kinetic energy are equal.
The lowest energy wavefunction of the quantum harmonic oscillator has the form (c) Determine σ and Eo (the energy of this lowest-energy wavefunction) by using the time-independent Schrödinger equation (H/Ho(x)- E/Ho(x) In Lecture 3, we found that the solution for a classical harmonic oscillator displaced from equilibrium by an amount o and released at rest was x(t)cos(wt) (d) Classically, what is the momentum of this harmonic oscillator as a function of time? (e) Show that 〈z) (expectation value of x)...
The most general wave function of a particle in the simple harmonic oscillator potential is: V(x, t) = (x)e-1st/ where and E, are the harmonic oscillator's stationary states and their corresponding energies. (a) Show that the expectation value of position is (hint: use the results of Problem 4): (v) = A cos (wt - ) where the real constants A and o are given by: 1 2 Ae-id-1 " Entichtin Interpret this result, comparing it with the motion of a...
Please do this problem about quantum mechanic harmonic
oscillator and show all your steps thank you.
Q1. Consider a particle of mass m moving in a one-dimensional harmonic oscillator potential. 1. Calculate the product of uncertainties in position and momentum for the particle in 2. Compare the result of (a) with the uncertainty product when the particle is in its the fifth excited state, ie. (OxơP)5. lowest energy state.
Q1. Consider a particle of mass m moving in a one-dimensional...