All Questions
Tagged with resource-recommendations lagrangian-formalism
43
questions
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Toolkit to generate the most general gauge invariant Lagrangian for a given particle content
I am currently working on a BSM model for unification where I am adding scalars for unification. I add many scalars, so finding the most general gauge invariant lagrangian is becoming difficult. Is ...
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112
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Reference request for QFT $SO(3)$ non-linear sigma model
I was wondering if anyone has a reference that could help me understand quantum field theories that have a nonlinear configuration space. For example, from classical mechanics if we have a three-...
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Detailed calculation to obtain Feynman rules of Standard Model
I am looking for a note deriving all interaction terms in detail of the Standard Model (after spontaneous symmetry breaking)?
In short, I need a note/reference showing in details how all the terms ...
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1
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372
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Book recommendation for advanced classical mechanics from a mathematician’s perspective [duplicate]
I realise that this question has been asked many times before, but none of those could answer my situation, so here I am.
I am a high school student with a keen interest in mathematics and physics. I ...
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303
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$\beta$-function in non-Abelian scalar QCD
I study non-Abelian scalar QCD in $d = 4 - \epsilon$ dimensions (using dimensional reduction). That is, I consider complex scalars, $\Phi^i$ with $i \in \{1, ..., N\}$, that satisfies $U(N)$-symmetry, ...
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348
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Connection between the Least Action principle and the Schwarzschild's metric in General Relativity
I'm looking for some simple paper/textbook explaining the fact that time dilation in the Schwarzschild's metric can be translated into the classic equation of motion in a gravitational field.
That is:
...
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1
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139
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Where to begin with the Rayleigh Dissipation Function?
I'm a final year student of mechanical engineering. Calculus of Variations isn't a part of our syllabus.
I'm trying to understand the Rayleigh Dissipation function, and I understand that this is a ...
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Computer code to quickly check equation of motion to first or higher order from action (4D spacetime)
I derived equations of motion up to first order from a Lagrangian for a scalar field in a 4D spacetime. Now, I would like to cross-check my results. Is there by any chance an application / code /...
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What are some books that teach to apply Lagrangian methods on simple systems of Physics I? [duplicate]
I want to find a book that teaches simple Kinematics problems but use both Newtonian and Analytical method, and maybe draw parallel between them. Is there such a reference?
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Resources on BRST and BV quantisation for local quantum field theories
This is a reference request, to ideally a textbook, monograph, set of lecture notes or lecture videos, on the topics of BRST quantisation and the Lagrangian BV formalism. My constraints are as follows:...
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154
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Lagrangian mechanics beginner [duplicate]
Im a first year student of physics.
Because of coronavirus we have got online lessons, but my mechanic's lecturer doesn't like us, he didn't explain anything, just give us a problems to solve.
I've ...
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Reference regarding classical treatment of spin
While going through these notes about spin, I encountered the classical Lagrangian for spin (section 2). But the treatment here is very concise and I can't seem to find any other resources treating ...
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140
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Rigid bodies: angular velocities, momentum, Inertia Tensor, rotational kinetic energy. Books suggestions? [duplicate]
I'm having a hard time with understanding how to model the rotational kinetic energy of rigid bodies. I will appreciate any good suggestion about resources such as books or videos regarding topics ...
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83
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Resource recommendation for studying Elastostatics and Elastodynamics using Lagrangian and Hamiltonian formulation
I've been self studying Elastostatics and Elastodynamics from Kip S. Thorne's Modern Classical Physics (Chapter 11 & 12). The whole topic is discussed based on Newtonian mechanics, vector & ...
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Does anyone have references on classical field theory that develops the differential form formalism?
I am familiar with the usual way of doing Classical Field Theory, but I am currently taking a course where the professor works with differential forms to teach the subject. I wonder if anyone knows ...