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762148
bio website arXiv.org
location Europe
age 49
visits member for 4 years, 4 months
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I'm a theoretical physicist.


23h
answered Fixing time in Feynman phase space path integral
2d
answered Square root of a matrix appears in massive gravity. How to solve $\sqrt{A+B}$ perturbatively
2d
answered Determination of the ground state of a field theory
Jul
28
answered Where does the “Supersymmetry” in Witten's proof of the Morse inequalities come from?
Jul
26
answered Deriving Newton's first law from the principle of least action
Jul
26
answered Klein-Gordon Green's function: derivative of delta distribution?
Jul
23
answered How to define $\delta{g_{\mu\nu}}$?
Jul
23
answered Noether's theorem: meaning of transformation of coordinates
Jul
21
answered Energy-Momentum Tensor in QFT vs. GR
Jul
20
answered Why is the stress-energy tensor symmetric?
Jul
20
answered How unique are the quantum numbers we commonly use?
Jul
20
answered What is the definition of the duality group $E_{7(7)}$?
Jul
19
answered Energy-Momentum Tensor for Electromagnetism in Curved Space
Jul
17
answered Why does the dimension of the electric charge depend on the number of spacetime dimensions?
Jul
14
answered Minus sign in the time ordering operator
Jul
14
answered The Nambu-Goto action how do we know the Hamilton's principle applies?
Jul
12
answered The definition of the vacuum state of quantum field by path-integral
Jul
12
answered How to calculate the functional derivative of the functional integral?
Jul
11
answered Does the connected Green's function's decomposition into 1PI-s have connected contributions, or can it be written exclusively using 1PI-s?
Jul
11
answered How are quadruple gluon vertices related to $SU(2)$ and $SU(3)$?