If the kinetic energy T and the potential energy V of a mathematical system are given T = (k+;) i + 4142 + 5đ3, V = (k + 1)gi + n2 n2 2 (a) Find Hamilton function. (b) Find Hamilton equations. ?
Q: Let ƒ(x, y) = x² + 4y² and let C be the line segment from (0, 0) to (2, 2). You are going to compute…
A: Given: f(x,y)=x2+4y2 We need to find the line integral in two different ways.
Q: QUESTION 3: Abstract angular momentum operators: In this problem you may assume t commutation…
A:
Q: The angular momentum operator is given by Î = î x p. (a) Assuming we are in cartesian space, prove…
A:
Q: (d) A linear perturbation H' = nx is applied to the system. What are the first order energy…
A: d) Given, linear perturbation is, H^'=ηx So the first order energy correction for energy eigen…
Q: P2. Consider the motion of a particle of mass m moving in a 3-d potential, V(x, y, x) = k(x2 + y2 +…
A:
Q: Is the following total differential exact? df(g,h) = 7g(g^3+ h^2)jdg + 2h^4(3g^2 + 7h^2)jdh. Could…
A:
Q: Q5:1 A particle of mass m moves in a one dimensional potential U (x) where x a Sketch the…
A:
Q: The Hamiltonian of a system has the form 1 d² 2 dx² अ = • 1⁄2 x² + √4x¹ = Ĥ0 + V4Xª Let ½(x) = |n)…
A:
Q: Q#05: Prove the following commutation relation for angular momentum operators Lv, Ly, L, and L (L.,…
A:
Q: or a simple harmonic oscillator potential, Vo(x) = ÷kx² = ¬mo²x², %3D %3D 2 ħo and the ground state…
A: Given: For a single harmonic oscillator potential, the ground state energy values are given Use…
Q: cx%3D+00 Using only the property f(a) = o f(x)8(x – a)dx as a definition of the Dirac delta, prove…
A: (a) Given: f(a)=∫-∞+∞f(x)δ(x-a)dx Introduction: As a distribution, the Dirac delta function is a…
Q: energy levels En of the anharmonic oscillator in the first order in the pa- rameter 3 are given by:…
A: We can use the direct results here of expectation value of x4 in nth state.
Q: PROBLEM 3. Using the variational method, calculate the ground s ergy Eo of a particle in the…
A: Given: The potential of the triangular well is as follows. The trial function is Cxexp(-ax).…
Q: う
A: Given: [L^2,L^z]=0
Q: The Hamiltonian of a system with two states is given by the following expression: ħwoox H where ôx =…
A:
Q: Find the Expression for the Energy Eigenvalues, En.
A:
Q: The Hamiltonian of a system has the form 1 d² 1 · + ²⁄3 x² + √4x² = Ĥo + Y₁X² 2 dx2 2 Ĥ = == Let…
A:
Q: #1: Find the time depended wave functions V(x, t) = ?
A:
Q: Consider a special case of eq. (8-5) in which each of the potentials V, V2 and V, are identical, in…
A:
Q: 7. 1. Calculate the energy of a particle subject to the potential V(x) Vo + câ/2 if the particle is…
A:
Q: Consider the three-dimensional harmonic oscillator, for which the potential is V ( r ) = 1/2 m ω2…
A:
Q: Consider two particles of mass m attached to the ends of a massless rigid rod with length a. The…
A: Given two particles of mass m are attached to the ends of of a massless rigid rod with length a.…
Q: The spherical harmonics are the eigenfunctions of ?̂2 and ?̂ ? for the rigid rotor and thehydrogen…
A: The objective of this question is to determine the angles at which nodal surfaces will occur for the…
Step by step
Solved in 3 steps
- In spherical polar coordinates, the angular momentum operators, 1² and Îz, can be written, Ә β = -ħ² 1 ə sin Ꮎ ᎧᎾ 1 2² sin² 0 00² дф él sin)+ + and (a) îψ(θ, φ) = λιψ(θ, φ) = Î₂ = = -ih Apply these operators to the unnormalized eigenfunction, (0, 4) = sin²0 e-²ip, and determine the eigenvalues of that are associated with each operator. (b) Î₂¥(0, 0) = 1₂4(0,4)2) Consider a particle in a three-dimensional harmonic oscillator potential V (r, y, z) = 5mw²(r² + y² + z®). The stationary states of such a system are given by ntm(r, y, z) = vn(x)¢r(y)v'm(2) (where the functions on the right are the single-particle harmonic oscillator stationary states) with energies Entm = hw(n +l+m+ ). Calculate the lifetime of the state 201.Consider the function v(1,2) =( [1s(1) 3s(2) + 3s(1) 1s(2)] [x(1) B(2) + B(1) a(2)] Which of the following statements is incorrect concerning p(1,2) ? a. W(1,2) is normalized. Ob. The function W(1,2) is symmetric with respect to the exchange of the space and the spin coordinates of the two electrons. OC. y(1,2) is an eigenfunction of the reference (or zero-order) Hamiltonian (in which the electron-electron repulsion term is ignored) of Li with eigenvalue = -5 hartree. d. The function y(1,2) is an acceptable wave function to describe the properties of one of the excited states of Lit. Oe. The function 4(1,2) is an eigenfunction of the operator S,(1,2) = S;(1) + S,(2) with eigenvalue zero.
- Physics Department PHYS4101 (Quantum Mechanics) Assignment 2 (Fall 2020) Name & ID#. A three-dimensional harmonic oscillator of mass m has the potential energy 1 1 1 V(x.y.2) = ; mw*x² +mwży² +=mw;z? where w1 = 2w a. Write its general eigenvalues and eigenfunctions b. Determine the eigenvalues and their degeneracies up to the 4th excited state c. The oscillator is initially equally likely found in the ground, first and second excited states and is also equally likely found among the states of the degenerate levels. Calculate the expectation values of the product xyz at time tPart b5. Consider the two state system with basis |+) which diagonalizes the Pauli matrix 03. Generally the state of the system at time t can be written as |W(t)) = c+(t)|+) + c_(t)|-). (i) For the Hamiltonian of the system, first take H = functions c+(t) given the initial condition that at time t = 0 Eo03. Solve for the coefficient |W(0)) = |-).
- Consider the half oscillator" in which a particle of mass m is restricted to the region x > 0 by the potential energy U(x) = 00 for a O where k is the spring constant. What are the energies of the ground state and fırst excited state? Explain your reasoning. Give the energies in terms of the oscillator frequency wo = Vk/m. Formulas.pdf (Click here-->)Activity 7 (a) Solve the following equations for real x and- (i) 3+5i+x-yi = 6 – 2i (4*3 (ii) x+yi=(1-i)(2+8i). (b) Determine the complex number z which satisfies z(3+3i) = 2-i.Find the ground state energy using the variational principle for the given Hamiltonian h? d? – y8(y). Use the trial wave function ø(y)= De¯®´ with a as the variational =H 2m dy +00 1 parameter. Hint: y"ea dx = (2a)™-12 r| m+ –my (а) 2h? -2my? (b) 2 -my (c) (d) my? Answer A O B D
- Problem 3: Chemical potential of an Einstein solid. Consider an Einstein solid for which both N and q are much greater than 1. Think of each ocillator as a separate “particle". a) Show that the chemical potential is H = -kT In (**e) b) Discuss this result in the limits N » q and N « q, concentrating on the question of how much S increases when another particle carrying no energy is added to the system. Does the formula make intuitive sense?Show that the function \[ S=S(q, \beta, t)=\frac{m \omega}{2}\left(q^{2}+\beta^{2}\right) \cot \omega t-m \omega q \beta \csc \omega t \] is a solution to the Hamilton-Jacobi equation for Hamilton's principal function for the linear harmonic oscillator with \[ H=\frac{1}{2 m}\left(p^{2}+m^{2} \omega^{2} q^{2}\right) \] Show that this function generates a correct solution to the motion of the harmonic oscillator.The Hamilton function for a point particle moving in a central potential is given by p? H + a|x|". 2m Consider the vector A = p x L+ ma where L is the angular momentum of the particle. (a) Calculate the Poisson bracket {H, Ar}, where A is the k-th component of the vector A. (b) Determine the value of the exponent n for which the vector A becomes a conserved quantity.