Recent content by Mishra

Hello, I'm trying to find out the distribution function (cumulative or density) of the product of two independent random variables respectively following a non-zero-mean Gaussian and a Rayleigh distribution. The math is too intricate for me, I've found in the appendix of [Probability...

Hello, I am trying to find an expression for the signal-to-noise ratio of an oscillating signal on top some white noise. In particular I would like to know how the SNR scales with the integration time. It is well known that during some integration time ##T##, the SNR increases as ##T^{1/2}##...

I was thinking of this recent publication: http://advances.sciencemag.org/content/1/1/e1400005.full Which I found in the references of a Slate article: http://www.slate.com/articles/life/education/2015/02/university_hiring_if_you_didn_t_get_your_ph_d_at_an_elite_university_good.html ps: I am...

•The perimeter institute has a comprehensive program towards theoretical physics: https://www.perimeterinstitute.ca/training/perimeter-scholars-international/lectures/2011/2012-psi-lectures It starts with the basics mathematical skills ("front"), then moves on to the physics you mentioned...

In my opinion IQ score is not important for average or above average people, and probably does not mean much. A cost-free 40min test being able to measure the intellectual performances of a potential student/candidate? If such thing existed it would be a mandatory test in every aspect of our...

Hello, My question is probably geared towards the professors or postdocs reading this forum and concerns the recruitment aspect of the professors in the US. I am a European physics student currently visiting a "top" Californian university. During this short visit (8 months) I have come to...

I am in a similar situation where I want to do experimental physics but keep wanting to learn math and fundamental physics. •How about doing both: mathematical physics, or even some fundamental theoretical physics (General relativity, QFT, QCD, physics beyond the standard model etc...)? You...

Hi all, I am 27yo with a Msc in experimental physics. My goal was to pursue an academic career (PhD, postdoc etc...) in experimental physics. After some investigation I realize it might not be the best option: PhD offers I received would basically set me bellow the poverty line for 4years and...

Well the situation is exactly like that but nobody confronted him and it has been a few weeks like this now. So I think we look like two bully at the back of the class trashing and insulting people. My best chance is to stop talking to him and socialize with the lab. I'm also working at home one...

I will try to contact a pro confidentially to get direction, I do not want to start a HR procedure but they may be able to tell me what to do in the future. Considering what I told him he will probably not reiterate his behavior and the problem should solve by itself. And if he does reiterate...

The lab has all these resources indeed. But I feel really bad about going through this: 1) This could get him fired, and I do not wish him that even if I do not like him. 2) This would feel weird to complain only after learning that some people speak our language and might have understood what...

I have recently been visiting a lab in the US as a visiting scholar and I am facing a tense social situation that spoils my ability to do decent work. The situation is so shameful that talking about it makes me feel like a child and feels humiliating... Basically, an other student a little...

Thanks!

Hello and thank you for your answer. I understand de proof (at least for fields) of this results. What I do not understand is its meaning, I see a lot of discussion using this (interpretation) to talk about causality for example. What is there to actually understand about this results?

Hello, In the context of QFT, I do not understand the statement: ##\frac{\delta \phi(x)}{\delta \phi(y)}=\delta (x-y)## I understand the proof which arises from the definition of the functional derivative but I do not get its meaning. From what I see is generalizes ##\frac{\partial...