Beyond the Standard Models Forum

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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.
Undergrad Does this variant of MOND exist?
  • nomadreid
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Undergrad How would a 4th Dimensional Object Move?
  • Blop
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Graduate Top, Higgs, Higgs VEV relation from conformal symmetry?
  • mitchell porter
  • · Replies 19 ·
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Undergrad Can spacetime exist in superposition?
  • Khashishi
  • · Replies 20 ·
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Undergrad How would negative mass interact with gravity?
  • Hawksteinman
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Undergrad Why String Theory Is Still Not Even Wrong
  • kodama
  • · Replies 41 ·
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Graduate Can the huge energy of quantum vacuum explain the observed value of dark energy?
  • David Neves
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Undergrad GR -- about spacetime and time travel
  • SD das
  • · Replies 21 ·
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Undergrad Corollaries of the fundamental integral theorems
  • Pushoam
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Undergrad Does Planck time violate Lorentz-invariance
  • kodama
  • · Replies 2 ·
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Undergrad Best fit of a function containing costants with error
  • RaamGeneral
  • · Replies 5 ·
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Graduate Meaning of Slot-Naming Index Notation (tensor conversion)
  • heptacle
  • · Replies 1 ·
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High School Who is Lisa Randall and What Can We Learn from Her Interview?
  • fresh_42
  • · Replies 1 ·
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Graduate Hierarchy problem and Feynmam diagrams
  • nigelscott
  • · Replies 1 ·
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High School Are All Quantum Gravity Theories Based on Covariant Quantum Fields?
  • mieral
  • · Replies 14 ·
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High School What you think of Scale Symmetry?
  • cube137
  • · Replies 2 ·
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Undergrad Why bother with Astrophysics if we have String Theory?
  • Gjmdp
  • · Replies 3 ·
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Graduate Relations between lagrangian and hamiltonian
  • LagrangeEuler
  • · Replies 4 ·
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Undergrad Eletrons muons tau in string theory
  • kodama
  • · Replies 14 ·
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Graduate Introductory String Theory Texts
  • craigi
  • · Replies 2 ·
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Undergrad Differential forms as a basis for covariant antisym. tensors
  • Physics_Stuff
  • · Replies 1 ·
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Graduate String theory and zeta function z(-1)
  • pcm81
  • · Replies 7 ·
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Graduate Should top Universities engage in nonstring QG research
  • kodama
  • · Replies 46 ·
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Graduate Does String Theory incorporate Kaluza Klein? How?
  • arivero
  • · Replies 3 ·
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Insights Interview with a Theoretical Physicist: Sabine Hossenfelder - Comments
  • Greg Bernhardt
  • · Replies 14 ·
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Graduate Can slow change solve the metalaw problem?
  • Martin Sallberg
  • · Replies 7 ·
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High School What Is a Special Unitary Group?
  • ChrisisC
  • · Replies 3 ·
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Graduate Can time be the cause of gravity's weakness and nonpolarity?
  • Martin Sallberg
  • · Replies 3 ·
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Undergrad Clockwork solution to the Higgs hiearchy
  • kodama
  • · Replies 5 ·
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Undergrad The Naked Spinor and related stuff
  • RiccardoVen
  • · Replies 7 ·
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Undergrad I need a list of all singularities in physics
  • SothSogi
  • · Replies 4 ·
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Graduate The CC and cosmological event horizon radiation
  • friend
  • · Replies 5 ·
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5
Undergrad Classical Field Theory: Prerequisites for Learning
  • Jianphys17
  • · Replies 6 ·
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Undergrad Motivation for mass term in Lagrangians
  • Frank Castle
  • · Replies 2 ·
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High School What exists between Strings in String Theory?
  • icantevenn
  • · Replies 5 ·
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Undergrad Is Time Reversibility Inherent in All Physical Laws?
  • Higgsono
  • · Replies 3 ·
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High School Understanding the GUT Scale: Merging Fundamental Forces at High Energies
  • nolxiii
  • · Replies 5 ·
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High School Math tools in a travel to Alpha Centauri?
  • Rodrigo Olivera
  • · Replies 11 ·
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Undergrad Energy conservation in String Theory
  • Silviu
  • · Replies 1 ·
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Undergrad Tachyon Helicity: Does Fermion Change Helicity?
  • bsaucer
  • · Replies 1 ·
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Undergrad Linear and nonlinear physical theories
  • Higgsono
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Graduate Approaches towards quantum gravity
  • spaghetti3451
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Graduate Time-reparameterization invariance
  • spaghetti3451
  • · Replies 3 ·
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Graduate Is gravity a quantum phenomena or not?
  • ftr
  • · Replies 10 ·
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Undergrad Dimensionless and dimensioned fundamental constants
  • Lapidus
  • · Replies 25 ·
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Undergrad Decay of the Bs0 meson latest LHC results 7.8 sigma
  • kodama
  • · Replies 2 ·
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High School Holographic Principle and the Description of Higher Dimensional Universes
  • wolram
  • · Replies 6 ·
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Undergrad Minimal Surface shape with gravity
  • DuckAmuck
  • · Replies 3 ·
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Graduate How Does Gauge Invariance Shape Classical Yang-Mills Theory with Scalar Fields?
  • spaghetti3451
  • · Replies 1 ·
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High School A Possible Challenge To Chronology Protection Conjecture?
  • Troodon Roar
  • · Replies 1 ·
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Graduate David Suzuki and Applied Physics vs. Theoretical Physics
  • Work Hard Play Hard
  • · Replies 1 ·
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High School Why are some random physical quantitites given a name?
  • Kumar8434
  • · Replies 4 ·
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Graduate One Hamiltonian formalism query - source is Goldstein's book
  • swapnilp
  • · Replies 1 ·
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High School Metric for Calabi-Yau manifolds dynamic?
  • Spinnor
  • · Replies 3 ·
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High School Photon, string theory string, E&M field
  • Spinnor
  • · Replies 4 ·
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Undergrad Modeling a peristaltic roller pump
  • Oppogo
  • · Replies 8 ·
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High School Relationship between mathematics and existing objects
  • Mohd Abdullah
  • · Replies 5 ·
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Undergrad Goldstein Action-angle Variables
  • crossword.bob
  • · Replies 1 ·
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High School What is status of String Theory now?
  • Viet Tu
  • · Replies 7 ·
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Undergrad Direct product of a symmetry group with itself
  • ftft
  • · Replies 1 ·
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Graduate Problems from Lev Landau's "Theoretical Minimum"
  • JoePhysics
  • · Replies 3 ·
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Undergrad Moriond EW 2017 results -- No supersymmetry
  • kodama
  • · Replies 9 ·
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Undergrad A Scenario for Strong Gravity in Particle Physics
  • asimov42
  • · Replies 1 ·
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Undergrad Rényi entropy becomes von Neumann entropy
  • Lapidus
  • · Replies 1 ·
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Undergrad What exactly happens when the Schwarzschild radial r is....
  • Istegosaurus
  • · Replies 2 ·
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High School Speed of light and higher dimensions
  • bellatrix gray
  • · Replies 12 ·
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Undergrad Left Right Symmetric Extension of SM and vMSM
  • Trixie Mattel
  • · Replies 2 ·
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Undergrad Mirror matter and supersymmetry
  • kodama
  • · Replies 1 ·
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Undergrad Why Must ##\mu_1, \mu_2## = ##\mu_1^*, \mu_2^*##? Parametric Resonance
  • arpon
  • · Replies 2 ·
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High School Can Humans Ever Know Everything About the Universe?
  • jfoldbar
  • · Replies 1 ·
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Undergrad Summary of the fundamental equations/laws
  • JoePhysics
  • · Replies 4 ·
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High School Transmuting 'anything' into 'anything'.
  • phillovix
  • · Replies 5 ·
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Undergrad Asymptotic safety and loop quantum gravity
  • kodama
  • · Replies 2 ·
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Graduate Representation theory of supersymmetry
  • mitchell porter
  • · Replies 4 ·
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Graduate Penrose twistor theory correctly predicts 4 dimensions
  • kodama
  • · Replies 19 ·
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Undergrad Verlinde's Emergent Gravity Doesn't Work
  • ohwilleke
  • · Replies 4 ·
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Graduate Are there experimental proofs for modern theories
  • SteveCon
  • · Replies 23 ·
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High School Quantum Gravity Technology Spinoffs?
  • mieral
  • · Replies 2 ·
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Undergrad Lagrangian Paradox: Uncovering an Issue
  • michael879
  • · Replies 15 ·
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High School What is the theory of gravitons
  • Nwachuku Chimaobi
  • · Replies 10 ·
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10
Undergrad What is the expected result of plugging equations of motion into the Lagrangian?
  • michael879
  • · Replies 1 ·
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Undergrad How can 'd' mean two different things?
  • EddiePhys
  • · Replies 7 ·
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Undergrad Further Evidence of a 3.5 keV line in Galactic X-Ray Spectra
  • MrRobotoToo
  • · Replies 4 ·
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Graduate Are many physicists not fluent in the language of physics?
  • Gort
  • · Replies 17 ·
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Graduate A new conjecture on the micro states of black-holes
  • sufive
  • · Replies 4 ·
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Undergrad Decay of the Bs0 particle and supersymmetry
  • kodama
  • · Replies 9 ·
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Graduate Reps of the SUSY algebra: raising and lowering operators
  • hyperkahler
  • · Replies 2 ·
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2
Undergrad Is the multiverse fake physics?
  • kodama
  • · Replies 79 ·
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Undergrad Eulerian or Lagrangian: Which Perspective Offers Greater Insights?
  • member 428835
  • · Replies 10 ·
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Undergrad Difference between global and local gauge symmetries
  • Frank Castle
  • · Replies 1 ·
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Undergrad Understanding Chaos: Unraveling the Complexities of Nature's Behavior
  • Vrbic
  • · Replies 14 ·
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14
Graduate Test if 2nd order diff eq. can be derived from a Hamiltonian
  • Bosh
  • · Replies 2 ·
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Undergrad Graviton Scattering: Compute Amplitudes w/Einstein Gravity
  • PedroBittar
  • · Replies 5 ·
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5
Graduate Are Neutralinos Considered Composite in Supersymmetric Models?
  • Harry235435
  • · Replies 1 ·
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High School What is the Holographic Universe Theory and What Are Its Implications?
  • S.daniels009
  • · Replies 1 ·
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Undergrad Bootstraping a space from its tensor square
  • arivero
  • · Replies 3 ·
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Undergrad End point information in lagrangain variation principle
  • Ron19932017
  • · Replies 3 ·
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Insights Frenet Equations in 2-d Which Result in the Cornu Spiral - Comment
  • Charles Link
  • · Replies 3 ·
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Undergrad Are Strings the Key to Understanding the Dimensions of Our Universe?
  • Dook
  • · Replies 8 ·
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Undergrad What is the row and column expression for the tensor product in index notation?
  • Kara386
  • · Replies 6 ·
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