first, i am not sure but i have some question on this.
why is that the trace is being taken on the dimension of hilbert space to calculate Ωs, isn't hilbert space a number rather than a matrix. trace acts on matrix.
i think the best to check all of 3 options and see whether they agree, then...
let's take dy = k dx/dt where k is a constant, can then the value of y in terms of x or vice versa be solved?
i think it is possible to solve this, asking the physics and mathematicians who have encountered such problem
mathematicians help out here!
thanks
thanks,
but what is the meaning of visibility? does visibility means chance of seeing interference?
is the V in your equation the visibility? there is a minus sign in the intensity form
are L(x) and R(x) operators?
thanks
Hi,
What does visibility in interference mean? in quantum mechanics?
V = Imax-Imin/Imax+Imin
but which part of the interference does Imax and Imin refer to?
thanks
When we say expectation value of an operator like the pauli Z=[1 0; 0 -1], like when <Z> = 0.6 what does it mean?
What is difference between calculating expectation value of Z and its POVM elements{E1,E2}?
thanks
I have few questions to ask:
1. Can a photon state be written as
|ψ> = [cos(θ) sin(θ) exp(i*ø)] in column vector form
2. When a general photon state|ψ> = [cos(θ) sin(θ) exp(i*ø)] passes through a linear polarizer [1 0; 0 0] we get [cos(θ) 0] at the output but not [1 0] as is usually...