Show that momentum space is equivalent to position space knowing that the operator X̂=i(hbar)(∂/∂p). ( ∫(-∞...
Show that momentum space is equivalent to position space knowing that the operator X̂=i(hbar)(∂/∂p).
( ∫(-∞ --> ∞) Ψ•(x) x Ψ(x)dx = ( ∫(-∞ --> ∞) Φ•(p) (i(hbar)(∂/∂p)) Φ(p)dp
Please show detailed steps. Thank you.
Homework Answers
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Show that momentum space is equivalent to position space knowing
that the operator X̂=i(hbar)(∂/∂p).
( ∫(-∞...
A. Momentum space We define the momentum space wave function φ(p) as where Ψ(x)is a solution...
A. Momentum space We define the momentum space wave function φ(p) as where Ψ(x)is a solution of the Schrödinger equation in configuration (position) space a) Show that the expectation values of and p can be written in terms of Ф(p) as <p(p)p(p)dp b) Demonstrate that φ(p) is normalized, ie if Ψ(x) is normalized. J ΙΨ(2)12dr-1 c) Show that Ф(p) 2dp can be interpreted as the probability to find a particle with momen tum between p and p+ dp
Show that the angular momentum operator, Îz = (ħ/i) d/dφ, is hermitian. Hint: consider the wavefunction...
Show that the angular momentum operator, Îz = (ħ/i) d/dφ, is hermitian. Hint: consider the wavefunction ψ(φ), where φ varies from 0 to 2π
The following momentum space wavefunction is given (P-P)2 2(Apa) where Po and ΔΡζ are constants. Compute...
The following momentum space wavefunction is given (P-P)2 2(Apa) where Po and ΔΡζ are constants. Compute the normalization constant C Compute the conjugate real space wavefunction ψ(x) Evaluate the product of the indetermination of the position and momentum coordinates.
2.The angular momentum is L = p a) What is the representation of the angular momentum operator b)Use the polar coordinates to compute L o)Show that the eigenfunction forp) m(p),where mis integer....
2.The angular momentum is L = p a) What is the representation of the angular momentum operator b)Use the polar coordinates to compute L o)Show that the eigenfunction forp) m(p),where mis integer. What is the Τηφ(p),where What mis integer. is the eigenfunction φ(p), assume 0 (p) 2π
2.The angular momentum is L = p a) What is the representation of the angular momentum operator b)Use the polar coordinates to compute L o)Show that the eigenfunction forp) m(p),where mis integer. What...
qm 09.2 2. (i) In one dimension, the momentum operator is given by d Ô =...
qm 09.2
2. (i) In one dimension, the momentum operator is given by d Ô = -ih- dx Determine the x dependence of the (un-normalised) momentum eigenfunction for a particle of momentum p, free to move along the x axis. [4 marks] (ii) A particle that is free to move along the x axis is described by a wavefunction v(x) = 1/ va, 0, |x<a/2 1x1 >a/2. (a) Show that the probability of measuring a momentum between p and p...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor series, show that Here a is a constant, and pis the momentum operator. The exponential of an operator is defined as ea_ ??? i,O" Verify that the unitary operator elo/h can be constructed as follows (Hint: Notice that f(x +a) (al) and eohf())) e Prove that Here is the position operator. (Hint: You may work in the momentum space, in which p = p...
qm 09.3 3. An operator  is Hermitian if it satisfies the condition $ $(y) dx...
qm 09.3
3. An operator  is Hermitian if it satisfies the condition $ $(y) dx = (Ap) u dx, for any wavefunctions $(x) and y(x). (i) The time dependent Schrödinger equation is ih au = fu, at where the Hamiltonian operator is Hermitian. Show that the equation of mo- tion for the expectation value of any Hermitian operator  is given by d(A) IH, Â]), dt ħi i = where the operator  does not depend explicitly on time....
3. Consider the eigenvalue problem 1
The answer is given. Please show more detailed steps, thank
you.
3. Consider the eigenvalue problem 1<x<2 dx2 y(1)=0,y(2) = 0. dx iwrite it in the standard Sturm-Liouville form. ii) Show that 0 by the Rayleigh Quotient. dx p(x)-x, q(x) = 0, σ(x)-1 According the Raileigh Quotient Any eigenvalue is related to its eigenfunction φ(x) by - x p(x) dr Since the B.C. are ф(1)-0 and ф(2-0, so dx
3. Consider the eigenvalue problem 1
Please show all the steps thank you very much 6. The one-dimensional wave function for a...
Please show all the steps thank you very much
6. The one-dimensional wave function for a particle over all space... may be expressed as: 4, = Ae i(kx-ot) a) Apply the momentum and energy operators to ψ ( ie, pyr & EY) as to verify the following: pzhk and Eshω b) Substitute w into Schrödinger's equation...2m -2mārī = Ey as to verity the following: 2m ax
Consider a linear operator, 82 with Po(x) pi(a) 1 p()-0 As a linear space of functions where L is self-adjoint, consider the following "periodic'-like" boundary conditions, where, as...
Consider a linear operator, 82 with Po(x) pi(a) 1 p()-0 As a linear space of functions where L is self-adjoint, consider the following "periodic'-like" boundary conditions, where, as usual, po(z) = w(z)po(x). The weighting function w(z) is, so far, unknown. (a) Identify, up to a constant, the weighting function (a) of the inner productu for which L can potentially become a self-adjoint operator; (b) Assume that L acts on a space of functions defined on an interval with b) Show...
A. Momentum space We define the momentum space wave function φ(p) as where Ψ(x)is a solution of the Schrödinger equation in configuration (position) space a) Show that the expectation values of and p can be written in terms of Ф(p) as <p(p)p(p)dp b) Demonstrate that φ(p) is normalized, ie if Ψ(x) is normalized. J ΙΨ(2)12dr-1 c) Show that Ф(p) 2dp can be interpreted as the probability to find a particle with momen tum between p and p+ dp
The following momentum space wavefunction is given (P-P)2 2(Apa) where Po and ΔΡζ are constants. Compute the normalization constant C Compute the conjugate real space wavefunction ψ(x) Evaluate the product of the indetermination of the position and momentum coordinates.
2.The angular momentum is L = p a) What is the representation of the angular momentum operator b)Use the polar coordinates to compute L o)Show that the eigenfunction forp) m(p),where mis integer. What is the Τηφ(p),where What mis integer. is the eigenfunction φ(p), assume 0 (p) 2π
2.The angular momentum is L = p a) What is the representation of the angular momentum operator b)Use the polar coordinates to compute L o)Show that the eigenfunction forp) m(p),where mis integer. What...
qm 09.2
2. (i) In one dimension, the momentum operator is given by d Ô = -ih- dx Determine the x dependence of the (un-normalised) momentum eigenfunction for a particle of momentum p, free to move along the x axis. [4 marks] (ii) A particle that is free to move along the x axis is described by a wavefunction v(x) = 1/ va, 0, |x<a/2 1x1 >a/2. (a) Show that the probability of measuring a momentum between p and p...
1. Problems on unitary operators. For a function f(r) that can be expanded in a Taylor series, show that Here a is a constant, and pis the momentum operator. The exponential of an operator is defined as ea_ ??? i,O" Verify that the unitary operator elo/h can be constructed as follows (Hint: Notice that f(x +a) (al) and eohf())) e Prove that Here is the position operator. (Hint: You may work in the momentum space, in which p = p...
qm 09.3
3. An operator  is Hermitian if it satisfies the condition $ $(y) dx = (Ap) u dx, for any wavefunctions $(x) and y(x). (i) The time dependent Schrödinger equation is ih au = fu, at where the Hamiltonian operator is Hermitian. Show that the equation of mo- tion for the expectation value of any Hermitian operator  is given by d(A) IH, Â]), dt ħi i = where the operator  does not depend explicitly on time....
The answer is given. Please show more detailed steps, thank
you.
3. Consider the eigenvalue problem 1<x<2 dx2 y(1)=0,y(2) = 0. dx iwrite it in the standard Sturm-Liouville form. ii) Show that 0 by the Rayleigh Quotient. dx p(x)-x, q(x) = 0, σ(x)-1 According the Raileigh Quotient Any eigenvalue is related to its eigenfunction φ(x) by - x p(x) dr Since the B.C. are ф(1)-0 and ф(2-0, so dx
3. Consider the eigenvalue problem 1
Please show all the steps thank you very much
6. The one-dimensional wave function for a particle over all space... may be expressed as: 4, = Ae i(kx-ot) a) Apply the momentum and energy operators to ψ ( ie, pyr & EY) as to verify the following: pzhk and Eshω b) Substitute w into Schrödinger's equation...2m -2mārī = Ey as to verity the following: 2m ax
Consider a linear operator, 82 with Po(x) pi(a) 1 p()-0 As a linear space of functions where L is self-adjoint, consider the following "periodic'-like" boundary conditions, where, as usual, po(z) = w(z)po(x). The weighting function w(z) is, so far, unknown. (a) Identify, up to a constant, the weighting function (a) of the inner productu for which L can potentially become a self-adjoint operator; (b) Assume that L acts on a space of functions defined on an interval with b) Show...
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