Recent content by kthouz

Thanks for your good explanation

I am new to non linear dynamics, I am reading some papers and there are terms that I am finding every which I still have no idea about their meaning. What is: 1. Inhibitory coupling 2. An attractor Any explanation or reference is warmly welcome Thanks

Ok, thanks a lot, now this makes sense

Thank you very much. I calculated [P,V(x)]in x-basis and I found a cosine function. Hence the momentum is not always conserved and hence is conserved at certain values of x.

When I was learning translational symmetry I saw that for translation invariance, i.e [T,H]=0 the momentum P needs to be conserved [P,H]=0. This momentum is actually the generator of small translations defined as T:x→x+ε. Now, I was solving some problems and I met one which is...

I have a problem consisting in solving for potential in 2 dim polar coordinates where I am asked to use circular harmonics. Can I still use Legendre polynomials (since these are actually for spherical harmonics)? If not what are their analoguous in polar coordinates?

How can one calculate the center of mass of a system made of two photons? I know that they have zero rest mass so the first intuition is to say that they do not have any center of mass. However, I read about something called center of momentum which is defined as a frame in which a moving...

I wished to know about this but no one is responding to this thread. Please, can one somebody help?

Do you have any reference (paper, book, ...), please?

Yes that's what I mean

Hi everyone, There is a lottery where in every 100 tickets 10 of them must win. Now, me and my friends want to try. We are 6 and we wish to play such that at least 3 of us win. Can anyone help me and tell me what is the probability that this happen? Thank you.

Thanks for your explanation. But now, let's take a physical example: "LIGHT". I've been reading that Light Polarization would help in the understanding of pure and mixed state. Suppose I have a beam of light which can be polarized or not. As I read, a polarized light (photon) is a pure state...

Can you please suggest me any reading which gives more details. And thanks

In quantum mechanics, regarding light (photon), how to tell that a wavefunction is in a pure state or mixed state? I am learning these stuffs for my first time. I have attempted to answer that question but I am not sure: a wavefunction can be wrtitten as a linear combination of linear...

I agree that not everything but frankly, almost anything. I was just referring to engineering. Of course a physicist can work in medicine. Find out what radiologists do or what is medical physics. Long time performance and innovation for his firm. Compare the percentage of unemployed lawyers...