Question

In: Physics

For the some unknown Hamiltonian, we will use a trial wave function ?? = ??1??1 +...

For the some unknown Hamiltonian, we will use a trial wave function ?? = ??1??1 + ??2??2 . Where ??1 ?????? ??2 are known functions

a. What are the variational parameters of this trial wave function (2 points)?

b. Minimizing the average energy will lead to a secular Determinant.Write down an expression for the Secular Determinant for this system using the following symbols (4 points)

??11, ??12 = ??21, ??22, ??11, ??12 = ??21, ??22, E.

c. Write a mathematical expression using ??1, ??2, and any necessary operators to define (2 points)

??22=

??21=

Solutions

Expert Solution


Related Solutions

1. A clear step by step formulation and solution (using Hamiltonian function) of the two body...
1. A clear step by step formulation and solution (using Hamiltonian function) of the two body problem relative to inertial frame of reference. 2. A clear step by step formulation and solution (using Hamiltonian function) of the two body problem relative to a non-inertial frame of reference.
write the Hamiltonian, the Green's function and the Schrodinger equation in spherical coordinates
write the Hamiltonian, the Green's function and the Schrodinger equation in spherical coordinates
1).a) Show that the bound state wave function ψb (Eqn 2.129) and the continuum state wave...
1).a) Show that the bound state wave function ψb (Eqn 2.129) and the continuum state wave function ψk (Eqn 2.131-132 with coefficients 2.136-137) are orthogonal, i.e., 〈ψb|ψk〉 = 0. (b) [bonus] Explain why the orthogonality exists, example as, are they eigenstates of an operator? If so, what is the operator? If not explain.
Use the Schrodinger equation solution of the H atom corresponding to its wave function for the...
Use the Schrodinger equation solution of the H atom corresponding to its wave function for the 3dxy orbital to explain why this orbital has no radial node. Questions to consider: (j) What is the value of the wave function and thus the radial part of the function at a node? (ii) What factor of the radial part of the wave function, containing r, can equal your value in (i) and thus allow you to obtain a value for r?
Can you use the same variational wave function as in (2) to determine the energy of...
Can you use the same variational wave function as in (2) to determine the energy of the first excited state of the one-dimensional harmonic oscillator? Why or why not?
How the wave function and wave packets can be used to explain the particle-wave properties of...
How the wave function and wave packets can be used to explain the particle-wave properties of electrons?
Find an expression for the Hamiltonian, the Green's Function in Electrodynamics and the time independent Schrodinger...
Find an expression for the Hamiltonian, the Green's Function in Electrodynamics and the time independent Schrodinger Equation. Derive a force equation from each one
4. This problem is about some function. All we know about the function is that it...
4. This problem is about some function. All we know about the function is that it exists everywhere and we also know the information given below about the derivative of the function. Answer each of the following questions about this function. Be sure to justify your answers. f ′(−5) = 0 f ′(−2) = 0 f ′(4) = 0 f ′(8) = 0 f ′(x) < 0 on (−5,−2), (−2,4), (8,∞) f ′(x) > 0 on (−∞,−5), (4,8) a. Identify...
A sinusoidal wave in a string is described by the wave function y = 0.155 sin...
A sinusoidal wave in a string is described by the wave function y = 0.155 sin (0.525x - 46.5t) where x and y are in meters and t is in seconds. The mass per length of the string is 13.2 g/m. (a) Find the maximum transverse acceleration of an element of this string. (b) Determine the maximum transverse force on a 1.00-cm segment of the string. (c) State how the force found in part (b) compares with the tension in...
1189) The following values of y (cm) were measured for some unknown function. y = 5...
1189) The following values of y (cm) were measured for some unknown function. y = 5 3 3 5 9 15 23 every 1 cm. Find the area bounded by the function and the x axis (cm^2) using four methods: Use forward, backward, trapezoidal, and Simpson integration. ans:4
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT