quantum mechanic II d show that d5 8) Using a Age^ 7 is a solution to...
Problem #7 The quantum harmonic oscillator Hamiltonian, expressed in terms of raising and lowering operators, is We also know that Using these two statements, show that if then both Yn and ah have well-defined energies. Give these energies in terms of μη. Problem #7 The quantum harmonic oscillator Hamiltonian, expressed in terms of raising and lowering operators, is We also know that Using these two statements, show that if then both Yn and ah have well-defined energies. Give these energies...
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...
Need the answer for b) 1. The idea of a quantum fluctuation is central to much of physics, including cosmology; for example, it is believed that the current structure of the Universe arose from small initial quantum fluctuations that were stretched out during a period of rapid Universal expansion called inflation. As we will discuss later, it turns out that we can represent quantum systems as an infinite collection of harmonic oscillators. For each of the harmonic oscillators, the amplitude...
Need the answer for c) 1. The idea of a quantum fluctuation is central to much of physics, including cosmology; for example, it is believed that the current structure of the Universe arose from small initial quantum fluctuations that were stretched out during a period of rapid Universal expansion called inflation. As we will discuss later, it turns out that we can represent quantum systems as an infinite collection of harmonic oscillators. For each of the harmonic oscillators, the amplitude...
In the lecture notes, we only solved the TISE for the quantum harmonic oscillator 1 Now, write down the actual solution of the wavefunction of the quantum harmonic oscillator, i.e. the solution that solves TDSE not TISE. 2. We consider the Quantum Harmonic Oscillator In Heisenberg Picture: (a) Hamiltonian to use is the quantum harmonic oscillator Hamiltonian Solve the Heisenberg equations of motion for the operators X (t) and P(t) where the Calculate the commutator [X(t), X (0)] and show...
Need the answer for a) 1. The idea of a quantum fluctuation is central to much of physics, including cosmology; for example, it is believed that the current structure of the Universe arose from small initial quantum fluctuations that were stretched out during a period of rapid Universal expansion called inflation. As we will discuss later, it turns out that we can represent quantum systems as an infinite collection of harmonic oscillators. For each of the harmonic oscillators, the amplitude...
In this optional assignment you will find the eigenfunctions and eigenenergies of the hydrogen atom using an operator method which involves using Supersymmetric Quantum Mechanics (SUSY QM). In the SUSY QM formalism, any smooth potential Vx) (or equivalently Vr)) can be rewritten in terms of a superpotential Wix)l (Based upon lecture notes for 8.05 Quantum Krishna Rajagopal at MIT Physics II as taught by Prof Recall that the Schroedinger radial equation for the radial wavefunction u(r)-r Rfr) can be rewritten...
PLEASE ANSWER ALL PARTS AND BE AS NEAT AND AS CLEAR AS POSSIBLE. THANK YOU (a) Show that the Hamiltonian for the quantum harmonic oscillator problem, 1 A = 5 mw?22 Ø 2 2m can be expressed solely in terms of the lowering and raising operators and constants. The lowering and raising operators are: 1 ( . mw2 -Ê + ſhw J2m Ô and ma2 â 1 Vhw • evento). 2 2m (Hint: If I were doing this problem, I...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor series, show that Here a is a constant, and pis the momentum operator. The exponential of an operator is defined as ea_ ??? i,O" Verify that the unitary operator elo/h can be constructed as follows (Hint: Notice that f(x +a) (al) and eohf())) e Prove that Here is the position operator. (Hint: You may work in the momentum space, in which p = p...
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...