Thanks for your reply, I did not post them initially as I cannot get very far. Sorry for bad texing I can't figure out why it won't work.
Parallel case: Putting over common demoninator
\be
Z^{P}=\frac{1}{i\omega C +\frac{1}{i\omega L} + \frac{1}{R}} = \frac{i\omega LR}{-\omega^{2}RLC + R +...
Hey,
The impedance of the series and parallel RLC circuit both tend to R near the resonant frequency (one is a min/ one is a max) so if I expand the frequency around this point I should be able to show they are the same for \delta \omega small right? For some reason I can't get it to work. Any...
A few months ago I wrote this line down, but it does not seem to follow any more. Am I mistaking a mistake now or when I first wrote it down? thanks
( | 0 \rangle \langle 0 | + | 1 \rangle \langle 1 |) \rho ( | 0 \rangle \langle 0 | + | 1 \rangle \langle 1 |)
= | 0 \rangle \langle 0 |...
Hello,
If the dynamics of the system are descibed by a Hamiltonian, H please could someone explain when should I be using
|\right \psi(t) \rangle=H\left |\right \psi(0) \rangle
and when to use
|\right \psi(t) \rangle=U\left |\right \psi(0) \rangle
where
U=e^{-iHt/\hbar}
Thank you
Hey, I know this is easy I just can't remember how to do it.
y(0)=0
and By''+y'=A A,B constants.
So complementary solution Bm^{2}+m=0 \\ \text{ therefore } m=0, \frac{-1}{B}
therfore y_{C} = C_{1}+C_{2}e^{-t/B}
Not sure what to do for particular solution though because...
Hello,
I am looking at different ways to solve Systems of Linear Homogenous Differential equations with Constant Coefficients that is \acute{x}=Ax (x and x' are vectors A is a matix) then the solutions are x= \xi e^{\lambda t} where \xi are the eigenvectors and \lambda the eigenvalues of A and...
This is for the Pauli Matrics 0 and 1 are different Hilbert Spaces
\left[(I-Z)_{0}\otimes(I-Z)_{1} , Y_{0}\otimes Z_{1}\right]
=\left((I-Z)_{0}\otimes(I-Z)_{1}\right)\left(Y_{0}\otimes Z_{1}\right)-\left(Y_{0}\otimes Z_{1}\right)\left((I-Z)_{0}\otimes(I-Z)_{1}\right)...
Hi,
Can someone explain to me how to write a matrix as a sum of outer products like \left|\psi\rangle\langle\psi\right|?
For example how would I do a CNOT gate? http://en.wikipedia.org/wiki/Controlled_NOT_gate
I assume this is fairly easy since it is always assumed and I have kind of picked...
Feynman Looking for A "Particle Version" of QFT
Hey,
I think I read somewhere (though can't find it now) that Feynman was looking for a 'particle' version of quantum field theory which he didn't find but this instead led to the path integral approach of quantum mechanics. Can anyone shed any...