Recent content by lydilmyo

hi ! the NaK ATPase is required to maintain gradient of Na and K that are connected to function of plethor of transporter, in fact, many transporter use Na gradient as energy source (active secondary transport). The membrane potential is mostly due to K+ diffusion across the membrane, so...

it is like I've thought, an analogy between Ix + iIy and cosx + isinx = e(ix) that represent a rotation in complex 2D space. So It's represent the rotation of angular moment from one state to another... And you're right, I'm not familiar with Wigne-Eckart theory ! Soon, I understand it^^ I just...

So, what's the physical relevance of this definition ?

of course ! sorry... Thanks a lot... Do you know where come from this relation between ladder and cartesian operators ?

S_x = \frac{1}{2} \left(\left( \begin{array}{ccc} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 0 & 0 & 0 \end{array} \right) + \left( \begin{array}{ccc} 0 & 0 & 0 \\ 1 & 0 & 0 \\ 0 & 1 & 0 \end{array} \right)\right) S_y = \frac{i}{2} \left(\left( \begin{array}{ccc} 0 & 0 & 0 \\ 1 & 0...

I don't undersand why you are this square root ? It is in reality 1/2 and not \frac{1}{\sqrt{2}}

so, why kaltsoplyn talk about a really hard way to determine Ix and Iy if it is so easy to construct its by this relations ?

but this relation is available only for pauli matrix (2x2) and so for spin 1/2... please help me ! or give the matrix representation of Ix and Iy for I=1 if you know it...

Hello, I've to construct Ix and Iy for I=1. so, I can construct lowering and raising operator but how do you construct cartesian operator from this equation ? there are no definition for Ix and Iy by their action on eigenstate vector like Iz, I+ and I-... How can I do that easily ?