Calculate the probability that a harmonic oscillator
n=(n+1/2)h
is a state with n odd number if the
oscillator is in contact with a heat bath at temperature
T.
Homework Answers
Add Answer to:
Calculate the probability that a harmonic oscillator
n=(n+1/2)his a state with n odd number if the...
1. Quantum harmonic oscillator (a) Derive formula for standard deviation of position measurement ...
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...
question no 4.22, statistical physics by Reif Volume 5 4.92 Mean energy of a harmonic oscillator A harmonic oscillator...
question no 4.22, statistical physics by Reif Volume 5
4.92 Mean energy of a harmonic oscillator A harmonic oscillator has a mass and spring constant which are such that its classical angular frequency of oscllation is equal to w. In a quantum- mechanical description, such an oscillator is characterized by a set of discrete states having energies En given by The quantum number n which labels these states can here assume all the integral values A particular instance of a...
Consider a simple single quantum particle with the energy levels of the harmonic oscillator En =...
Consider a simple single quantum particle with the energy levels of the harmonic oscillator En = (n + 1/2)ℏω. This particle is in thermal contact with a reservoir with temperature T. a) Calculate the partition function of this particle. b) Calculate the internal energy of the particle as a function of temperature. Deduce and interpret the state of this energy at low and high temperatures. c) Calculate the specific temperature of this particle at constant pressure.
4. (20 points). Consider a quantum harmonic oscillator with characteristic frequency w. The syste...
4. (20 points). Consider a quantum harmonic oscillator with characteristic frequency w. The system is in thermal equilibrium at temperature T. The oscillator is described by the following density matrix: A exp kaT where H is the usual harmonic oscillator Hamiltonian and kB is Boltzmann's constant. Working in the Fock (photon number) basis: a. Find the diagonal elements of ρ b. Determine the normalization constant A. c. Calculate the expectation value of energy (E
4. (20 points). Consider a quantum...
2. The ground state wave function for the spherical harmonic oscillator with zero angular momentum is...
2. The ground state wave function for the spherical harmonic oscillator with zero angular momentum is estimated to be (n) = e-ar Given that H = om deres + mw? mo? Calculate the optimal value of "a" that gives the lowest energy from dE/da. Please note that: and wtw) = L* de e-dor= VERA (.ly) = L º de c** L-am et + zma*r') e-*** (0917we) = Contact met ) VER
3. (a) Consider a 1-dim harmonic oscillator in its ground state (0) of the unperturbed Hamiltonian at t--0o. Let a pert...
3. (a) Consider a 1-dim harmonic oscillator in its ground state (0) of the unperturbed Hamiltonian at t--0o. Let a perturbation Hi(t)--eEXe t2 (e, E and rare constants) be applied between - and too. What is the probability that the oscillator will be in the state n) (of the unperturbed oscillator) as t-> oo?(15%) (b) The bottom of an infinite well is changed to have the shape V(x)-ε sin® for 0Sxa. Calculate the energy shifts for all the excited states...
1. Consider one-dimensional harmonic oscillator H w(aaand its energy eigenstates are denoted as ln) , n...
1. Consider one-dimensional harmonic oscillator H w(aaand its energy eigenstates are denoted as ln) , n E No. The state of system is given by n-0 (a) Find Z. (b) Calculate the von Neumann entropy. (c) Evaluate mean energy.
1. The two dimensional Harmonic Oscillator has the Hamiltonian n, n'>denotes the state In> of the...
Please solve with the
explanations of notations
1. The two dimensional Harmonic Oscillator has the Hamiltonian n, n'>denotes the state In> of the x-oscillator and In'> of the y-oscillator. This system is perturbed with the potential energy: Hi-Kix y. The perturbation removes the The perturbation removes the degeneracy of the states | 1,0> and |0,1> a) In first order perturbation theory find the two nondegenerate eigenstates of the full b) Find the corresponding energy eigenvalues. На Hamiltonian as normalized linear...
The wave function of the ground state of a harmonic oscillator, with a force constant k...
The wave function of the ground state of a harmonic oscillator, with a force constant k and mass m is given as 1 Vo(x) = (1) where mwo k h m Calculate the probability of finding the particle outside the classical region. a = =
A Wave Packet in Simple Harmonic Motion: Coherent State of Simple Harmonic Oscillator 2 Background: Without...
A Wave Packet in Simple Harmonic Motion: Coherent State of Simple Harmonic Oscillator 2 Background: Without the general tools for solving the Time Dependent Schrödinger Equation DSwhich we will lear in ciect ssoltions io the TDSEi are diflieli but not impossible to find. In this problem, you will consider one such solution, the "Coherent States" of a Simple Harmonic Oscillator (SHO) of frequency w. We will use the solution to this problem to illustrate the general principles of the Correspondence...
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...
question no 4.22, statistical physics by Reif Volume 5
4.92 Mean energy of a harmonic oscillator A harmonic oscillator has a mass and spring constant which are such that its classical angular frequency of oscllation is equal to w. In a quantum- mechanical description, such an oscillator is characterized by a set of discrete states having energies En given by The quantum number n which labels these states can here assume all the integral values A particular instance of a...
4. (20 points). Consider a quantum harmonic oscillator with characteristic frequency w. The system is in thermal equilibrium at temperature T. The oscillator is described by the following density matrix: A exp kaT where H is the usual harmonic oscillator Hamiltonian and kB is Boltzmann's constant. Working in the Fock (photon number) basis: a. Find the diagonal elements of ρ b. Determine the normalization constant A. c. Calculate the expectation value of energy (E
4. (20 points). Consider a quantum...
2. The ground state wave function for the spherical harmonic oscillator with zero angular momentum is estimated to be (n) = e-ar Given that H = om deres + mw? mo? Calculate the optimal value of "a" that gives the lowest energy from dE/da. Please note that: and wtw) = L* de e-dor= VERA (.ly) = L º de c** L-am et + zma*r') e-*** (0917we) = Contact met ) VER
3. (a) Consider a 1-dim harmonic oscillator in its ground state (0) of the unperturbed Hamiltonian at t--0o. Let a perturbation Hi(t)--eEXe t2 (e, E and rare constants) be applied between - and too. What is the probability that the oscillator will be in the state n) (of the unperturbed oscillator) as t-> oo?(15%) (b) The bottom of an infinite well is changed to have the shape V(x)-ε sin® for 0Sxa. Calculate the energy shifts for all the excited states...
1. Consider one-dimensional harmonic oscillator H w(aaand its energy eigenstates are denoted as ln) , n E No. The state of system is given by n-0 (a) Find Z. (b) Calculate the von Neumann entropy. (c) Evaluate mean energy.
Please solve with the
explanations of notations
1. The two dimensional Harmonic Oscillator has the Hamiltonian n, n'>denotes the state In> of the x-oscillator and In'> of the y-oscillator. This system is perturbed with the potential energy: Hi-Kix y. The perturbation removes the The perturbation removes the degeneracy of the states | 1,0> and |0,1> a) In first order perturbation theory find the two nondegenerate eigenstates of the full b) Find the corresponding energy eigenvalues. На Hamiltonian as normalized linear...
The wave function of the ground state of a harmonic oscillator, with a force constant k and mass m is given as 1 Vo(x) = (1) where mwo k h m Calculate the probability of finding the particle outside the classical region. a = =
A Wave Packet in Simple Harmonic Motion: Coherent State of Simple Harmonic Oscillator 2 Background: Without the general tools for solving the Time Dependent Schrödinger Equation DSwhich we will lear in ciect ssoltions io the TDSEi are diflieli but not impossible to find. In this problem, you will consider one such solution, the "Coherent States" of a Simple Harmonic Oscillator (SHO) of frequency w. We will use the solution to this problem to illustrate the general principles of the Correspondence...
Most questions answered within 3 hours.
-
To be done in java code. 2 words are anagrams if 1 word can be
formed...
asked 9 minutes ago -
Bright Sun, Inc. sold an issue of 30-year $1,000 par value bonds
to the public. The...
asked 6 minutes ago -
Two players take turns at removing 1 to 4 coins from an original
pile of 16...
asked 5 minutes ago -
The income statement for the month of June, 2014 of Happy Smiles
Enterprises contains the following...
asked 11 minutes ago -
1-Calculate the mass in grams of 2.55 moles of KCl
2- Calculate how many moles are...
asked 11 minutes ago -
1. Choose value for p between 0.20 and 0.80. It should have at
least two decimal...
asked 13 minutes ago -
QUESTIONS: 500 words for the question
In defining abnormality, the criteria of “deviance”, “distress”
and “dysfunction”...
asked 14 minutes ago -
A sample of n = 25 scores produces a t statistic of t =
-2.062. If...
asked 32 minutes ago -
Given the following, compute the after tax cost of debt: The par
value of the firms...
asked 26 minutes ago -
Coding in C. Please only use stdio.h (which would mean no malloc
or anything like that)...
asked 31 minutes ago -
Use the fundamental accounting equation to find the missing
amounts.
Scenario
Assets
Liabilities
Equity
1
$...
asked 29 minutes ago -
A population has a mean of 200 and a standard deviation of 60.
Suppose a sample...
asked 33 minutes ago