8,904 reputation
21741
bio website
location Germany
age 21
visits member for 4 months
seen 1 min ago

I'm currently a student of physics at the University of Heidelberg.

My interests lie in theoretical physics of all kinds, and currently I am most fluent in gauge theory. I'm particularly interested in most forms of QFT.

My profile picture is obviously not of me, but if you know where it is from, you're awesome.

Having all the answers just means that you've been asking boring questions.

"The more we learn about the world, and the deeper our learning, the more conscious, specific, and articulate will be our knowledge of what we do not know, our knowledge of our ignorance." ~ Karl Popper

"Rigor cleans the window through which intuition shines." ~ Ellis D. Cooper


1m
reviewed Looks OK Interferometry works as a filter
39m
reviewed Edit and Reopen 2 masses are attached to hanging string and one is released. What is the max height reached by the other?
39m
revised 2 masses are attached to hanging string and one is released. What is the max height reached by the other?
added 8 characters in body
54m
comment Tensor raising and lowering
$V_a V^a = 1$ is false for general vectors $V$. Also, if you have a vector $V$, you can't simply write three indices like you did.
56m
revised Friction Force and Applied Force for Acceleration
edited tags
1h
comment Problem with commutator
Since $J_z^\dagger = J_z$, that is correct. In general, $(\langle \psi \rvert A)^\dagger = A^\dagger \lvert \psi \rangle$
1h
revised Problem with commutator
edited tags
1h
comment Problem with commutator
Have you thought of applying $J_z$ to the bra instead of the ket?
1h
reviewed Close can there be an object which reflects( not illuminates ) electromagnetic waves in the non visible region?
1h
reviewed Approve suggested edit on Why is the voltage negative?
2h
comment can there be an object which reflects( not illuminates ) electromagnetic waves in the non visible region?
Have you ever seen how the world looks with an infrared camera?
2h
reviewed Close Why does my metalic water bottle make noise?
2h
reviewed Close Conceptual Question on Work and Potential Energy
4h
reviewed Leave Open What will happen if a hairdryer is turned on in an air tight box?
5h
reviewed Close Gravitation Field inside hollow sphere
5h
comment Self-energy of electron from classical reasoning
@ShingLau: I updated the answer for 1.) and 3.). As for 2.), I am not saying that classical physics has no notion of self-energy, I am saying that it doesn't apply on the quantum scale, i.e. you cannot understand the electron with classical physics, and, in particular, you cannot talk about its self-energy as if it were a classical collection of charges.
5h
revised Self-energy of electron from classical reasoning
added 1297 characters in body
6h
reviewed Close Finding potential energy of a solid hemisphere on top of another solid hemisphere
6h
reviewed Close PEDOT drying and polymerisation on air
6h
reviewed Close a charged particle path