Join expert and advanced topics on beyond the standard model of physics. This includes professionally researched theories like strings, branes, and LQG. Mainstream physics only.
Threads
Undergrad Lagrangian - surface of sphere
- rolotomassi
- · Replies 13 ·
Graduate Andrei Lebed, equivalence principle
- bcrowell
- · Replies 42 ·
Graduate Dark Matter as higher-dimensional gravity
- Chemist@
- · Replies 2 ·
Graduate What are the best beginner books on supersymmetry?
- shereen1
- · Replies 5 ·
Undergrad Theoretical Possibility of "Opposite" Gravitational Mass?
- greswd
- · Replies 2 ·
Graduate How Do Internal Symmetry Generators Affect Supersymmetry Algebra?
- shereen1
- · Replies 6 ·
Graduate Why not sterile particles as dark matter?
- bcrowell
- · Replies 5 ·
Graduate Papers that combine LQG with twistor theory
- kodama
- · Replies 9 ·
Graduate Is the Hamilton-Jacobi Equation Enough for Hamiltonian Dynamics?
- Sphinx
- · Replies 2 ·
Graduate Proper movement, reference frames and gravitational waves
- tim9000
- · Replies 1 ·
Graduate Finding the curl in spherical coordinates
- tasleem moossun
- · Replies 8 ·
Graduate What's the actual shape of the upper dimensions?
- Amine_prince
- · Replies 19 ·
Undergrad Exact solutions for N particles with inverse-square forces
- alex2066
- · Replies 5 ·
Graduate Phase transition at high energies?
- Maccu
- · Replies 3 ·
Undergrad Heat Death of the Universe, Total or Not?
- greswd
- · Replies 24 ·
Graduate String theory deviations from GR in strong field regime
- kodama
- · Replies 1 ·
Graduate Can the universe become stable with a new electroweak vacuum
- Shahrokh
- · Replies 1 ·
Undergrad Detecting if the universe is a simulation
- goran d
- · Replies 4 ·
Graduate Can Manifolds Beyond Spacetime Revolutionize Quantum Gravity Unification?
- jlcd
- · Replies 4 ·
Graduate Alain homers with Ali and Slava on base
- marcus
- · Replies 22 ·
Graduate LQG has not been shown to violate the holographic principle
- ohwilleke
- · Replies 2 ·
Graduate What do the gravity waves seen by LIGO imply for QG?
- ohwilleke
- · Replies 4 ·
Graduate Is There Really No Grand Unified Theory and Unification of the Three Forces?
- kodama
- · Replies 14 ·
Graduate Can we calculate the coupling constants?
- friend
- · Replies 8 ·
Graduate Why Is the Physics Community Comfortable with Renormalization in QFT?
- romsofia
- · Replies 7 ·
Graduate How can energy be converted into matter?
- 5echild
- · Replies 3 ·
Graduate Stability of Minkowski space in semiclassical gravity?
- bcrowell
- · Replies 7 ·
Graduate Can Loop Variables Transform Photons into Closed Flux Lines?
- HawkI
- · Replies 6 ·
Graduate Stephen Hawking offers new resolution of black hole paradox
- marcus
- · Replies 44 ·
Insights The Need of Infinity in Physics - Comments
- dextercioby
- · Replies 27 ·
High School Is Black Hole-Generated Dark Energy a Viable Theory?
- binbots
- · Replies 7 ·
Graduate Does decoherence explain how improper mixtures become proper mixtures?
- jlcd
- · Replies 3 ·
Graduate What if the Principle of Least Action were different?
- crastinus
- · Replies 10 ·
Graduate What does the SPIN in spin foam cosmology refer to?
- Feeble Wonk
- · Replies 4 ·
Graduate Stephen Wolfram's post about spacetime
- David Neves
- · Replies 31 ·
Graduate Are q and q' dependent variables in Lagrangian or not?
- DOTDO
- · Replies 1 ·
Graduate The GZK-Cutoff, we are living in a simulation
- Vierstein
- · Replies 1 ·
Graduate Subtleties about Hamilton's equation
- Harry Mason
- · Replies 1 ·
Graduate Discretizing a Fluctuation Dissipation Theorem
- onkel_tuca
- · Replies 1 ·
Graduate Why aren't all particles entangled if they originated from the same quantum state?
- ebos
- · Replies 3 ·
Graduate Unifying GR and QM - Reasons for Believing in Unity
- HAL9000
- · Replies 8 ·
Graduate Is string theory testable?
- David Neves
- · Replies 19 ·
Graduate Event horizon and quantum tunneling
- sevenperforce
- · Replies 6 ·
Graduate What does ##\delta F=0## mean?
- samuelphysics
- · Replies 15 ·
Graduate Principle of least action in field theory
- spaghetti3451
- · Replies 1 ·
Graduate Does Loop quantum gravity have an effective UV fixed point?
- kodama
- · Replies 19 ·
Graduate How Do Photons Influence Mass in the Context of Gravity and Tensor Theory?
- jerromyjon
- · Replies 4 ·
Graduate Is Gravitational Wave a Projection of Quantum Wave if ER = EPR?
- philton
- · Replies 5 ·
Graduate Recent papers on self-dual loop quantum black holes
- kodama
- · Replies 28 ·
Graduate Reheating vs particle creation due to acceleration
- friend
- · Replies 2 ·
Graduate Large Underground Xenon dark matter experiment/LHC LSP neutr
- kodama
- · Replies 16 ·
Graduate P28 of phase transitions and the renormalization group
- A_B
- · Replies 1 ·
Undergrad Do Gödel's incompleteness theorems rule out a theory of everything?
- greswd
- · Replies 66 ·
Graduate Huygens principle in odd/even dimensional flat space
- giulio_hep
- · Replies 8 ·
Graduate Obtaining Euclidean action from Minkowski action
- spaghetti3451
- · Replies 1 ·
Graduate Deriving J=L+S from the Poynting vector integral
- avikarto
- · Replies 10 ·
Graduate Why does the relativistic string action ignore tension requirements?
- Qturtle
- · Replies 5 ·
Graduate Fields transforming into Space
- DuckAmuck
- · Replies 3 ·
Graduate Notation for generalized coordinates
- Isaac0427
- · Replies 5 ·
Graduate Sloppy Derivation of Euler-Lagrange.
- DuckAmuck
- · Replies 2 ·
Graduate Can Soft Hair Explain the Information Paradox on Black Holes?
- kodama
- · Replies 4 ·
Graduate Is the firewall explained by the Penrose interpretation?
- T S Bailey
- · Replies 8 ·
Graduate Do null geodesics in AdS allow causal connection to the boundary?
- adsquestion
- · Replies 2 ·
Graduate The Laws and Rules of Emergence in Spacetime and Matter Fields
- jlcd
- · Replies 8 ·
Graduate Would NMSM or vMSM + 4D QG like LQG or AsG be TOE?
- kodama
- · Replies 8 ·
Graduate Postulations and unknown unknowns in physics
- victorvmotti
- · Replies 5 ·
Graduate How Do Bilinears Connect to Killing Vectors and Differential Forms?
- PhyAmateur
- · Replies 1 ·
Graduate How to know which gauge transformation we should use?
- samuelphysics
- · Replies 9 ·
Graduate Is QFT on curved spacetime BtSM
- friend
- · Replies 1 ·
Undergrad Is Mathematics Truly Limited by Physics?
- Gjmdp
- · Replies 37 ·
Graduate Green's Function for Spherical Problem(Jackson)
- Andreol263
- · Replies 5 ·
Graduate Is There a Missing Link Between Spacetime and Fields in Mathematics?
- jlcd
- · Replies 4 ·
High School A world made of continuous matter
- black hole 123
- · Replies 9 ·
Graduate James Webb space telescope and fundamental physics
- tesselate
- · Replies 5 ·
Graduate What Are the Latest Research Topics in Physics Beyond the Standard Model?
- annihilatorM
- · Replies 3 ·
Graduate How Does the Wave Equation Derive and What Solutions Exist?
- Small bugs
- · Replies 5 ·
Graduate Standard model says 17 particals, M theory says 18?
- rcx299
- · Replies 1 ·
Graduate Causal Dynamic Triangulation Question
- cuallito
- · Replies 11 ·
Graduate Are there currently any proposals for a complete physics?
- maline
- · Replies 11 ·
Graduate What are the prospects for the Causal Fermion System?
- Finny
- · Replies 2 ·
Graduate Alex Vilenkin's paper about black holes and the multiverse
- David Neves
- · Replies 1 ·
Graduate Are 10 dimensions related to the tensor of 3d
- Pjpic
- · Replies 4 ·
Graduate Finding the General Solution of a Wave Equation with Fourier Transformations
- MarkoA
- · Replies 2 ·
Graduate Do constant arrays satisfy the tensor transformation rule?
- hokhani
- · Replies 2 ·
Graduate Help Me Understand This Author's Point: Noether's Theorem
- TimeRip496
- · Replies 8 ·
Graduate Natural units and dimensional analysis
- "Don't panic!"
- · Replies 12 ·
Graduate Can Quantum Gravity Serve as a Theory of Everything?
- friend
- · Replies 5 ·
Graduate Neutrino miminal standard model vs string/M-theory
- kodama
- · Replies 12 ·
Graduate Run 2 initial LHC @13 TEV Supersymmetry results null
- kodama
- · Replies 11 ·
Graduate Why do those two terms add here?
- Emilie.Jung
- · Replies 18 ·
Graduate What distinguishes a theory from a framework in physics?
- potato123
- · Replies 68 ·
Graduate Chaos and the Lorenz Equations
- fayled
- · Replies 1 ·
Graduate Do black holes survive the LQC bounce and conserve entropy?
- maline
- · Replies 7 ·
Undergrad To create a new model on physics what do i need to have?
- Jose Leal
- · Replies 10 ·
Graduate Understanding Symmetry Breaking to Everyday Examples
- TimeRip496
- · Replies 5 ·
Graduate Why Complex Scalars in 4D Supersymmetric Theories?
- Emilie.Jung
- · Replies 21 ·
Graduate Simple calculation of Compton scattering in string theory
- Strum
- · Replies 2 ·
Graduate Is Space-Time Non-Commutative? Understanding Non-Commutative Geometry in Physics
- black hole 123
- · Replies 1 ·
Graduate The relation between Lie algebra and conservative quantities
- EnigmaticField
- · Replies 14 ·