theoretical-physics

Theoretical physicists are caricatured in the popular imagination as only involved in abstruse and difficult-to-imagine topics. But some of these theoretical physicists are involved in something closer…

I am a bedroom theoretical physicist with no real academic qualifications to my name, I have been obsessed with figuring out a way to solve all the problems we face in physics by correcting our flawed model of the universe, I now can proudly announce I finally believe I have achieved this by... Read more

Gauge theories are often characterized as possessing ‘redundancy’ or ‘excess structure’. This, in turn, motivates reducing the gauge symmetries, commonly through ‘symplectic reduction’ in the Hamiltonian framework. However, there are multiple ways to formulate a Hamiltonian gauge theory. This paper examines the relationship between the formulation of a Hamiltonian gauge theory and the attribution…

Frank Wilczek has one of the most brilliant and original minds in theoretical physics, having come up with the idea of time crystals among much else. Where is his curiosity taking him now?

On massive type IIA supergravity: On higher curvature corrections in 11-dimensional supergravity: Paul S. Howe, Dimitrios Tsimpis, On higher-order corrections in M theory, JHEP 0309 (2003) 038 [doi:10.1088/1126-6708/2003/09/038, arXiv:hep-th/0305129] Dimitrios Tsimpis, 11D supergravity at , JHEP0410:046 (2004) [arXiv:hep-th/0407271, doi:10.1088/1126-6708/2004/10/046] Martin Cederwall, Ulf Gran, B…

Hi, I apologize if this question has been asked before. Where I'm from, the physics university is terrible (underfunded, professors who don't like lecturing, lack of students, etc). I want to one day do research in the areas of: theoretical physics, mathematical models used in theoretical... Read more

Hello everyone, I am a 9th-grade student from Ukraine with a deep passion for theoretical physics and science fiction (especially Star Wars). Since we currently lack the technology to experimentally test higher-dimensional travel, I have spent some time developing a logical, mathematical... Read more

On D=7 supergravity: On the supergravity Lie 3-algebra (see also at M-theory supersymmetry algebra): Laura Andrianopoli, Riccardo D'Auria, Lucrezia Ravera, Hidden Gauge Structure of Supersymmetric Free Differential Algebras, JHEP 1608 (2016) 095 (arXiv:1606.07328) Laura Andrianopoli, Riccardo D'Auria, Lucrezia Ravera, More on the Hidden Symmetries of 11D Supergravity (arXiv:1705.06251) Lucrezia R…

On the D'Auria-Fré-Regge formulation of supergravity: Leonardo Castellani, Pietro Fré, F. Giani, Krzysztof Pilch, Peter van Nieuwenhuizen, Gauging of supergravity?, Annals of Physics 146 1 (1983) 35-77 [spire:11998, doi:10.1016/0003-4916(83)90052-0] Leonardo Castellani, Riccardo D'Auria, Pietro Fré, Supergravity and Superstrings - A Geometric Perspective, World Scientific (1991) Leonardo Castella…

superalgebra and (synthetic ) supergeometry supergravity in dimension 6 Background on spin representations and supersymmetry: 221 2 (1983) 331-348 [doi:10.1016/0550-3213(83)90582-5] Formulation of supergravity on superspace: Moustafa A. Awada, Paul Townsend, Germán Sierra: Six-dimensional simple and extended chiral supergravity in superspace, Class. Quantum Grav. 2 (1985) L85 [doi:10.1088/0264-93…

On generalized Spin(7)-manifolds and M-theory on G₂-manifolds: On G-structures in M-theory: On D=6 supergravity: and in relation to contact geometry: Discussion of Killing spinors on globally hyperbolic Lorentzian manifolds: On duality-symmetric abelian Yang-Mills theory (“premetric electromagnetism”) in the generality allowing “U-duality-twists” among several abelian gauge fields, motivated by a…

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