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Physics Graduate student at Harvard University.


21m
comment Group Theoretic definition of a particle
@UserAnonymous - No problem. You can ask questions if you have doubts in my answer.
21m
revised Group Theoretic definition of a particle
added 12 characters in body
22m
comment Group Theoretic definition of a particle
@joshphysics - of course. Done!
15h
awarded  Explainer
19h
answered Group Theoretic definition of a particle
Sep
27
reviewed Approve suggested edit on Can a relativistic quantum particle be completely confined into a finite hole?
Sep
27
reviewed Approve suggested edit on Is a smartphone with a radar possible?
Sep
27
answered Why is equivalent resistance in parallel circuit always less than each individual resistor?
Sep
26
reviewed Close Are the electric charges of an electron and a proton equal or approximately equal?
Sep
26
reviewed Close Showing the Hamiltonian of the $\alpha$ FPU is real
Sep
20
comment Massless integrals in dim-reg
@innisfree - It is ambiguous. The way you should think about it is that I introduce these masses from the very beginning in the Lagrangian itself just as I do with the dimension in dimreg. The limits are only taken once all the correct set of diagrams are added such that all divergences are cancelled. The limits are never taken at intermediate steps of computing some integrals or diagrams. However, it can be shown that integrals of this sort do not ever contribute to the final answer and hence can be set to zero at an intermediate step.
Sep
20
answered Massless integrals in dim-reg
Sep
5
reviewed Close Does general relativity have an effect of the frequency of light?
Sep
5
reviewed Approve suggested edit on Galilean invariance proof
Sep
4
asked Eigenstates of a Hermitian field operator
Sep
3
revised Propagators, path Integrals, transition amplitudes, Green's functions etc
added 2 characters in body
Sep
2
reviewed Close Would equations for a spinning top be an (x,y,z) vector
Sep
2
answered World-sheet energy-momentum tensor and OPE
Aug
25
reviewed Close Sound difference between musical instruments
Aug
25
reviewed Close The charm of the gyroscope