Consider Maxwell-Chern-Simons theory in 2+1 dimension, with Lagrangian L=−(1/4)FμvFμv+(m2/4)ϵμvρAμFvρ, when I make a gauge transformation Aμ→Aμ+dλ, the lagrangian changes by a total derivative, which we can change it to surface integral. We assume the total derivative term, which can be converted to surface integral, vanishes at large distances. If we don't assume this does this change the symmetries or does it change the conserved quantities (i.e change the momentum, angular momentum operator etc.)
Subscribe to:
Post Comments (Atom)
-
At room temperature, play-dough is solid(ish). But if you make a thin strip it cannot just stand up on it's own, so is it still solid? O...
-
The gravitation formula says F=Gm1m2r2, so if the mass of a bob increases then the torque on it should also increase...
-
This image from NASA illustrates drag coefficients for several shapes: It is generally accepted that some variation of the teardrop/airfoil...
-
Can someone explain the difference between hopping and tunneling? The context I'm considering is conduction in semiconductors, specifica...
-
As the title says. It is common sense that sharp things cut, but how do they work at the atomical level? Answer For organic matter, such a...
-
Small vessels generally lean into a turn, whereas big vessels lean out. Why do ships lean to the outside, but boats lean to the inside of a ...
-
I'm sitting in a room next to some totally unopened cans of carbonated soft drinks (if it matters — the two affected cans are Coke Zero...
No comments:
Post a Comment