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accepted How do I derive the transformation law of a Weyl spinor under a Lorentz transformation?
May
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comment How do I derive the transformation law of a Weyl spinor under a Lorentz transformation?
my question isn't fuzzy i think. I just wanted to get the equation$\xi ~\rightarrow~ \exp\left(\ i \frac{\bf{\sigma}}{2}\cdot \theta +\frac{\bf{\sigma}}{2} \cdot \phi\right) \xi~?$. any help would be approciated. Thanx.
May
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comment Derrick’s theorem
Can you look at the equation (1) that how it came from the previous line?
May
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asked Suggestions contents for soliton theory
May
1
accepted Vortex in D dimensions soliton
May
1
comment Vortex in D dimensions soliton
This is about global vortices in two dimensions. Fields cannot be continuously deformed to a vacuum solution can you focus on this please?
May
1
accepted Derrick’s theorem
May
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asked Derrick’s theorem
Apr
30
comment Vortex in D dimensions soliton
Classical Solutions in Quantum Field Theory Solitons and Instantons in High Energy Physics ERICK J. WEINBERG Columbia University page no : 39
Apr
30
asked Vortex in D dimensions soliton
Apr
30
comment sine-Gordon equation
Can you please write some details the difference between,scalar field theory and $\phi^4$ theory?
Apr
30
comment sine-Gordon equation
Can you please look the book byLewis H.Rider page no (403). He discussed sine-Gordon equation with explaing the $\phi^4$ terms including which confirms us a relation between $\phi^4$ theory and sine-Gordon equation.