45,840 reputation
661145
bio website arXiv.org
location Europe
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visits member for 4 years, 2 months
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I'm a theoretical physicist.


6m
comment What is the constraint on the Gauge Potential in the Covariant Gauges?
Note added: Assuming that complex conjugation reverse the factors of supernumbers, we see that precisely one of $c$ and $\bar{c}$ should be real (imaginary).
3h
comment What is $c$ in the Lorentz force expression?
Related: physics.stackexchange.com/q/63584/2451
7h
comment Standardising shadow length on sundials
Hi martin. Welcome to Phys.SE. If you haven't already done so, please take a minute to read the definition of when to use the homework-and-exercises tag, and the Phys.SE policy for homework-like problems.
7h
comment Why must the supersymmetry generators be spinors?
Comment to the post (v3): Are you aware of the spin-statistics theorem?
9h
comment How to derive Uncertainty Principle relation?
Hi Pushkar Soni. Welcome to Phys.SE. You should only ask one question per post, so I removed your second question (because there already appears an answer to the first question).
14h
comment Basic question about acceleration
Possible duplicates: physics.stackexchange.com/q/89590/2451 and links therein.
1d
comment Proper way to quantize the string in the light-cone gauge
Related question by OP: physics.stackexchange.com/q/184742/2451
1d
comment Time dependent solution to infinite well
Crossposted from math.stackexchange.com/q/1302724/11127
1d
comment Derivation of the Polyakov Action
Equivalence between the Nambu-Goto and Polyakov actions is also discusses in a footnote of my Phys.SE answer here.
1d
comment How to explain space-time curvature in two minutes?
Related: physics.stackexchange.com/a/13839/2451
1d
comment Conversion of the Polyakov action into the Nambo-Goto action?
For the opposite question of going from the Nambu-Goto action to the Polyakov action, see physics.stackexchange.com/q/77038/2451 and links therein.
1d
comment Classical spin viewed as $SU(2)$
Crossposted to math.stackexchange.com/q/1292451/11127
1d
comment Classical spin viewed as $SU(2)$
Comment to the question (v4): Is the Lagrangian with the last term taken from a reference?
2d
comment Central Force - Trajectory
Hi Rixton. Welcome to Phys.SE. Please don't repost questions.
2d
comment Central Force - Trajectory
Possible duplicate: physics.stackexchange.com/q/186340/2451
2d
comment Explaining a quote by Weinberg about the signifcance of symmetry groups in physics
Which book? Which page?
2d
comment Speed of light paradox
Possible duplicates: physics.stackexchange.com/q/7446/2451 and links therein.
May
27
comment Physical reason why the derivative of a wavefunction has to be continuous?
Possible duplicates: physics.stackexchange.com/q/19667/2451 , physics.stackexchange.com/q/1067/2451 and links therein.
May
27
comment How to find the rank of the matrix $\frac{\partial ^2\mathcal{L}}{\partial \dot{X^\mu} \partial \dot{X^\nu} }$ for the Nambu-Goto string Lagrangian?
Comment for later: If we define $\chi_{\pm}:=\chi_1\pm\frac{\chi_2}{2T_0}$, then we get two Witt algebras $\{\chi_{\pm}(\sigma),\chi_{\pm}(\sigma^{\prime})\}_{PB}~=~\left[ \chi_{\pm}(\sigma)+\chi_{\pm}(\sigma^{\prime})\right] \delta^{\prime}(\sigma-\sigma^{\prime})$ and $\{\chi_{\pm}(\sigma),\chi_{\mp}(\sigma^{\prime})\}_{PB}~=~0$.
May
27
comment Problem understanding Lorentz invariance
Possible duplicate: physics.stackexchange.com/q/167813/2451