1. Write Schrodinger’s equation for electron’s motion, and use separation of variables to show that the 3D...
1. Write Schrodinger’s equation for electron’s motion, and use separation of variables to show that the 3D equation is equivalent to 3 independent one dimensional harmonic oscillator problems.
2. Find the ground state energy and ground state wave function. Express the energy in terms of the atomic unit of energy (Hartree) and the ratio a/ao between the (unknown) radius of the atom and Bohr’s radius.
3. What is the energy and degeneracy of the first excited level of this model ?
Homework Answers
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1. Write Schrodinger’s equation for electron’s
motion, and use separation of variables to show that the 3D...
consider Three-Dimensional harmonic oscillator with the same frequencies along all three directions. a) determine the wave...
consider Three-Dimensional harmonic oscillator with the same frequencies along all three directions. a) determine the wave function and the energy of the ground state. b) how many quantum numbers are needed to describe the state of oscillation? c) the degeneracy of the first excited state. express the wave function involved in the schrodinger equation as a product given by x, y, z and separate the variables.
8.4 The Two-Dimensional Central-Force Problem The 2D harmonic oscillator is a 2D central force pr...
8.4 The Two-Dimensional Central-Force Problem The 2D harmonic oscillator is a 2D central force problem (as discussed in TZD Many physical systems involve a particle that moves under the influence of a central force; that is, a force that always points exactly toward, or away from, a force center O. In classical mechanics a famous example of a central force is the force of the sun on a planet. In atomic physics the most obvious example is the hydrogen atom,...
2. The hydrogen atom [8 marks] The time-independent Schrödinger equation for the hydrogen atom in...
2. The hydrogen atom [8 marks] The time-independent Schrödinger equation for the hydrogen atom in the spherical coordinate representation is where ao-top- 0.5298 10-10rn is the Bohr radius, and μ is the electon-proton reduced mass. Here, the square of the angular momentum operator L2 in the spherical coordinate representation is given by: 2 (2.2) sin θー sin θ 00 The form of the Schrödinger equation means that all energy eigenstates separate into radial and angular motion, and we can write...
6. a) Calculate the expectation value of x as a function of time for an electron...
6. a) Calculate the expectation value of x as a function of time for an electron in a state that is a (normalized) equal mixture of the ground state and 1st excited state of a 1D HO b) Graph x vs time for the case k = 1 eV/nm2. What is its value at t=0? What is the period of the oscillation in femtoseconds? For the one-dimensional (1D) harmonic oscillator (HO) the potential energy function has the form V(a) k2/2,...
1. We'll use separation of variables to solve the Schrodinger equation in spherical geometry Show...
Quantum Physics
1. We'll use separation of variables to solve the Schrodinger equation in spherical geometry Show, that if the wave function takes the form 9(r,6, o) . R (r) (6)$(o) that the SchrodinDer equation can be separated in three equations d. (sin ) +1(1+1)sin2@62 ㎡Θ, and b) Show that imposing the boundary condition ф (ф)-ф (ф 2x) feguires that m-0, 1, 2, 3, ' . . dThe hrst few Legendre polymomials are given by 0-63-15 The "associated Legendre functions"...
could you please help me solving this. like and comment are rewarded. 1. A vacuum bubble...
could you please help me
solving this. like and comment are rewarded.
1. A vacuum bubble forms in a liquid and subsequently collapses. The liquid has density 1g em 3 and pressure equal to 1 standard atmosphere. The initial radius of the bubble is 2 mm. Using dimensional analysis, estimate the duration of the collapse. 2. An astronaut throws a small rock whilst standing on an open plain on Mars. Their hand is moving at approximately 60 km h -...
8.4 The Two-Dimensional Central-Force Problem The 2D harmonic oscillator is a 2D central force problem (as discussed in TZD Many physical systems involve a particle that moves under the influence of a central force; that is, a force that always points exactly toward, or away from, a force center O. In classical mechanics a famous example of a central force is the force of the sun on a planet. In atomic physics the most obvious example is the hydrogen atom,...
2. The hydrogen atom [8 marks] The time-independent Schrödinger equation for the hydrogen atom in the spherical coordinate representation is where ao-top- 0.5298 10-10rn is the Bohr radius, and μ is the electon-proton reduced mass. Here, the square of the angular momentum operator L2 in the spherical coordinate representation is given by: 2 (2.2) sin θー sin θ 00 The form of the Schrödinger equation means that all energy eigenstates separate into radial and angular motion, and we can write...
6. a) Calculate the expectation value of x as a function of time for an electron in a state that is a (normalized) equal mixture of the ground state and 1st excited state of a 1D HO b) Graph x vs time for the case k = 1 eV/nm2. What is its value at t=0? What is the period of the oscillation in femtoseconds? For the one-dimensional (1D) harmonic oscillator (HO) the potential energy function has the form V(a) k2/2,...
Quantum Physics
1. We'll use separation of variables to solve the Schrodinger equation in spherical geometry Show, that if the wave function takes the form 9(r,6, o) . R (r) (6)$(o) that the SchrodinDer equation can be separated in three equations d. (sin ) +1(1+1)sin2@62 ㎡Θ, and b) Show that imposing the boundary condition ф (ф)-ф (ф 2x) feguires that m-0, 1, 2, 3, ' . . dThe hrst few Legendre polymomials are given by 0-63-15 The "associated Legendre functions"...
could you please help me
solving this. like and comment are rewarded.
1. A vacuum bubble forms in a liquid and subsequently collapses. The liquid has density 1g em 3 and pressure equal to 1 standard atmosphere. The initial radius of the bubble is 2 mm. Using dimensional analysis, estimate the duration of the collapse. 2. An astronaut throws a small rock whilst standing on an open plain on Mars. Their hand is moving at approximately 60 km h -...
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