In a given representation, the matrix representing the Hamiltonian of a particle is given by
with 0 < ε < 1. Find the energy eigenvalues and
eigenfunctions of the particle in the representation.
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In a given representation, the matrix representing the
Hamiltonian of a particle is given by
with...
6. (20 points) Consider a free particle of mass m in a cubical box of side L with the Hamiltonian H = - -V2. We assume...
6. (20 points) Consider a free particle of mass m in a cubical box of side L with the Hamiltonian H = - -V2. We assume periodic boundary condition (a) Find the eigenfunctions (F) and its eigenvalue E (b) In the coordinate representation, find the density matrix in the canonical ensemble That is, to find (7le-BH) (c) Find the trace of the density matrix.
6. (20 points) Consider a free particle of mass m in a cubical box of side...
Q10 The Hamiltonian of a two-state system is given by H E ( i)- I02)(2 |...
Q10 The Hamiltonian of a two-state system is given by H E ( i)- I02)(2 | -i | ¢1)(2 | +i | ¢2) (¢1 1) where , p2) form a complete and orthonormal basis; E is a real constant having the dimensions of energy (a) Is H Hermitian? Calculate the trace of H (b) Find the matrix representing H in the | øı), | 42) basis and calculate the eigenvalues and the eigenvectors of the matrix. Calculate the trace of...
Consider a linear harmonic oscillator whose Hamiltonian is given by 1? д2 Н 2m дд? 2...
Consider a linear harmonic oscillator whose Hamiltonian is given by 1? д2 Н 2m дд? 2 hw(n1/2) with eigenvalues En n 0,1,2,... Please (1) derive its density matrix in momentum representation, and (2) evaluate the mean energy (H with results obtained in last question
Consider a linear harmonic oscillator whose Hamiltonian is given by 1? д2 Н 2m дд? 2 hw(n1/2) with eigenvalues En n 0,1,2,... Please (1) derive its density matrix in momentum representation, and (2) evaluate the mean...
The Hamiltonian of a system in the basis In > is given by H = hw("...
The Hamiltonian of a system in the basis In > is given by H = hw(" >< 0,1 + il" >< 421-142 >< 0,1 -21°3 >< $3D Here w is a constant. Write the Hamiltonian in the form of a matrix and obtain its eigenvalues and eigenfunctions. Express the eigenfunctions in terms of the basis In > and in its eigenvalues as En = hwe If the system is initially in the state | (0) >= 10 > a. What...
qm 2019.3 3. The Hamiltonian corresponding to the magnetic interaction of a spin 1/2 particle with...
qm 2019.3
3. The Hamiltonian corresponding to the magnetic interaction of a spin 1/2 particle with charge e and mass m in a magnetic field B is À eB B. Ŝ, m where Ŝ are the spin angular momentum operators. You should make use of expres- sions for the spin operators that are given at the end of the question. (i) Write down the energy eigenvalue equation for this particle in a field directed along the y axis, i.e. B...
(introduction to quantum mechanics) , the Hamiltonian matrix is H- 3. In the basis |1) - (a) Find the eigenvalues En and eigenfunctions Ion) of H. (b) The system is in state 2) initially (t 0). F...
(introduction to quantum mechanics)
, the Hamiltonian matrix is H- 3. In the basis |1) - (a) Find the eigenvalues En and eigenfunctions Ion) of H. (b) The system is in state 2) initially (t 0). Find the state of the system at t in the basis n). (c) Calculate the expectation value of H. Briefly explain your result. Does it depend on time? Why?
, the Hamiltonian matrix is H- 3. In the basis |1) - (a) Find the...
(3)Consider an atomic p-electron (-1) which is governed by the Hamiltonian H-Ho +Hl,where Ho=a L,.bhand H,-./2...
(3)Consider an atomic p-electron (-1) which is governed by the Hamiltonian H-Ho +Hl,where Ho=a L,.bhand H,-./2 where a,bandcare nonzero real numbers with a 굶b. (a) Determine the Hamiltonian in Matrix form for a basis | I,m > with 1-land ,n = 0,±1. You may use the formula (b)Treat H,as a perturbation of Ho. What are the energy eigenvalues and eigenfunctions of the unperturbed problem? (c)Assume as>lcl and bsslcl. Use perturbation theory to calculate eigenvalues of H to first non trivial...
Problem 3 The Hamiltonian of a rotator is given by where 11 and 13 are moments...
Problem 3 The Hamiltonian of a rotator is given by where 11 and 13 are moments of inertia, and Ly, Ly, and L, are the compo- nents of the orbital angular momentum operator. 1. Determine the eigenvalues of the Hamiltonian and their degeneracy in the two limits 11 = 13 and 11 > 13. 2. Sketch the energy spectrum in these two limits. 3. What is the energy spectrum in the limit 11 > 13? Problem 4 Consider the hermitian...
pls solve asap .. thanks A spin-particle is fixed in space with the Hamiltonian H =...
pls solve asap .. thanks
A spin-particle is fixed in space with the Hamiltonian H = as, + b($+$3), where a and b are constants and as usual, Sx, Sy, S, are the operators which gives the x-, y-, z-components of the total spin. a) Write the matrix representation of Hamiltonian, H. [6 marks] b) Determine the energy levels of this system. [2 marks] c) List all possible energy levels of this system [2 marks] (Show proper construction of the...
Quantum Mechanics : Given a Matrix (Hamiltonian) of the form ſa b a) Find the Eigenvalues...
Quantum Mechanics : Given a Matrix (Hamiltonian) of the form ſa b a) Find the Eigenvalues b) Find the Eigenvectors c) Use the above Eigenvectors to find the spin polarization vector given by st= |x112 – [X212
6. (20 points) Consider a free particle of mass m in a cubical box of side L with the Hamiltonian H = - -V2. We assume periodic boundary condition (a) Find the eigenfunctions (F) and its eigenvalue E (b) In the coordinate representation, find the density matrix in the canonical ensemble That is, to find (7le-BH) (c) Find the trace of the density matrix.
6. (20 points) Consider a free particle of mass m in a cubical box of side...
Q10 The Hamiltonian of a two-state system is given by H E ( i)- I02)(2 | -i | ¢1)(2 | +i | ¢2) (¢1 1) where , p2) form a complete and orthonormal basis; E is a real constant having the dimensions of energy (a) Is H Hermitian? Calculate the trace of H (b) Find the matrix representing H in the | øı), | 42) basis and calculate the eigenvalues and the eigenvectors of the matrix. Calculate the trace of...
Consider a linear harmonic oscillator whose Hamiltonian is given by 1? д2 Н 2m дд? 2 hw(n1/2) with eigenvalues En n 0,1,2,... Please (1) derive its density matrix in momentum representation, and (2) evaluate the mean energy (H with results obtained in last question
Consider a linear harmonic oscillator whose Hamiltonian is given by 1? д2 Н 2m дд? 2 hw(n1/2) with eigenvalues En n 0,1,2,... Please (1) derive its density matrix in momentum representation, and (2) evaluate the mean...
The Hamiltonian of a system in the basis In > is given by H = hw(" >< 0,1 + il" >< 421-142 >< 0,1 -21°3 >< $3D Here w is a constant. Write the Hamiltonian in the form of a matrix and obtain its eigenvalues and eigenfunctions. Express the eigenfunctions in terms of the basis In > and in its eigenvalues as En = hwe If the system is initially in the state | (0) >= 10 > a. What...
qm 2019.3
3. The Hamiltonian corresponding to the magnetic interaction of a spin 1/2 particle with charge e and mass m in a magnetic field B is À eB B. Ŝ, m where Ŝ are the spin angular momentum operators. You should make use of expres- sions for the spin operators that are given at the end of the question. (i) Write down the energy eigenvalue equation for this particle in a field directed along the y axis, i.e. B...
(introduction to quantum mechanics)
, the Hamiltonian matrix is H- 3. In the basis |1) - (a) Find the eigenvalues En and eigenfunctions Ion) of H. (b) The system is in state 2) initially (t 0). Find the state of the system at t in the basis n). (c) Calculate the expectation value of H. Briefly explain your result. Does it depend on time? Why?
, the Hamiltonian matrix is H- 3. In the basis |1) - (a) Find the...
(3)Consider an atomic p-electron (-1) which is governed by the Hamiltonian H-Ho +Hl,where Ho=a L,.bhand H,-./2 where a,bandcare nonzero real numbers with a 굶b. (a) Determine the Hamiltonian in Matrix form for a basis | I,m > with 1-land ,n = 0,±1. You may use the formula (b)Treat H,as a perturbation of Ho. What are the energy eigenvalues and eigenfunctions of the unperturbed problem? (c)Assume as>lcl and bsslcl. Use perturbation theory to calculate eigenvalues of H to first non trivial...
Problem 3 The Hamiltonian of a rotator is given by where 11 and 13 are moments of inertia, and Ly, Ly, and L, are the compo- nents of the orbital angular momentum operator. 1. Determine the eigenvalues of the Hamiltonian and their degeneracy in the two limits 11 = 13 and 11 > 13. 2. Sketch the energy spectrum in these two limits. 3. What is the energy spectrum in the limit 11 > 13? Problem 4 Consider the hermitian...
pls solve asap .. thanks
A spin-particle is fixed in space with the Hamiltonian H = as, + b($+$3), where a and b are constants and as usual, Sx, Sy, S, are the operators which gives the x-, y-, z-components of the total spin. a) Write the matrix representation of Hamiltonian, H. [6 marks] b) Determine the energy levels of this system. [2 marks] c) List all possible energy levels of this system [2 marks] (Show proper construction of the...
Quantum Mechanics : Given a Matrix (Hamiltonian) of the form ſa b a) Find the Eigenvalues b) Find the Eigenvectors c) Use the above Eigenvectors to find the spin polarization vector given by st= |x112 – [X212
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