34,363 reputation
643110
bio website arXiv.org
location Europe
age 48
visits member for 3 years, 5 months
seen 7 hours ago

I'm a theoretical physicist.


7h
comment Is there a way to obtain an RG flow equation for Quantum spin systems using MERA
Comment to the question (v1): Consider spelling out abbreviations to increase accessibility.
1d
comment Convention in physics for [],{} and operators (QM)
Which unpublished paper?
2d
comment Can a third type of electrical charge exist?
Comment to the question (v1): It seems that the question should only be answered by a brief No, standard E&M has only an one-dimensional real axis of possible electric charges (which includes positive and negative electric charges and ignoring magnetic monopoles). Any attempt to justify standard E&M will likely fall short of an actual proof of uniqueness. Any discourse into non-standard E&M is likely off-topic or too broad.
Aug
26
comment What is $c + (-c)$?
Related: physics.stackexchange.com/q/91149/2451
Aug
26
comment Are Lorentz transformations linear transformations?
Hi @elflyao: If your real question deviates significantly from what you first wrote (v1), it is probably better to ask a new question in a new post.
Aug
26
comment computer power supply unit PSU
Would Electrical Engineering be a better home for this question?
Aug
25
comment Why do we fall down when the bicycle slows down?
Possible duplicates: physics.stackexchange.com/q/506/2451 and links therein.
Aug
25
comment Are Lorentz transformations linear transformations?
Possible duplicate: physics.stackexchange.com/q/12664/2451
Aug
22
comment Intuition behind the principle of virtual work
Comment to the question (v2): The motivation for the principle of virtual work (and it's non-static version, the d'Alembert's principle) is Newton's laws, cf. e.g. physics.stackexchange.com/q/82884/2451 and links therein.
Aug
22
comment Question about infinite sum in quantum field
Zeta function regularization $\zeta(-1)=-\frac{1}{12}$ is also discussed here and here and links therein, and on Math.SE here. Also related Phys.SE post here.
Aug
22
comment Speed greater than light in circular motion
Related: physics.stackexchange.com/q/8659/2451 and links therein.
Aug
21
comment What is the electromagnetic field and what is the Higgs field?
$\uparrow$ Which post?
Aug
21
comment Invariance of Lagrange on addition of total time derivative of a function of coordiantes and time
The analogous field theoretic question: physics.stackexchange.com/q/87628/2451
Aug
21
comment Proof that total derivative is the only function that can be added to Lagrangian without changing the eom
@Danu: Yeah, I couldn't resist generalizing to field theory.
Aug
21
comment Force between two bar magnets
More on force between two magnets: physics.stackexchange.com/search?q=is%3Aq+force+two+magnets
Aug
21
comment Interaction Between Two Bar Magnets
Possible duplicate: physics.stackexchange.com/q/17309/2451 . More on force between two magnets: physics.stackexchange.com/search?q=is%3Aq+force+two+magnets
Aug
21
comment Mirror reflection
Cross-posted to math.stackexchange.com/q/566801/11127
Aug
21
comment Ideas for high school physics paper, including simulations
This question appears to be an off-topic list question.
Aug
20
comment Collision between electron and proton?
Possibly related: physics.stackexchange.com/q/9415/2451 , physics.stackexchange.com/q/20003/2451 and the links therein
Aug
20
comment How can there be really any instantaneous velocity?
More on Zeno's paradoxes: physics.stackexchange.com/search?q=is%3Aq+Zeno%27s and physics.stackexchange.com/search?q=is%3Aq+Zeno