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 Gravitation In Higher Dimensions
  • Hornbein
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Graduate Majorana mass term for the electron
  • zaman786
  • · Replies 16 ·
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High School Vibration Patterns of Strings within Quarks?
  • Hatem
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Undergrad Physical reality of nontrivial loops in SO(3)
  • DanCoimbra
  • · Replies 6 ·
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6
Graduate A question about tensor calculus in Von Neumann algebra (W*)
  • Tommolo
  • · Replies 20 ·
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High School String theory suggests that dark matter is hiding in extra dimension
  • pines-demon
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Graduate Tully-Fisher & DM via Modified Symmetries -- Arraut
  • mitchell porter
  • · Replies 11 ·
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Undergrad Observation of structures at ∼17 and ∼38 MeV/c2 in the γγ invariant mass spectra
  • kodama
  • · Replies 10 ·
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Graduate Does attraction vs repulsion depend on graviton spin?
  • Heidi
  • · Replies 15 ·
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Graduate The no boundary proposal and quantum gravity
  • Morbert
  • · Replies 7 ·
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7
Undergrad Does the graviton have to exist?
  • Jim Kata
  • · Replies 6 ·
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Graduate Chae Binaries Paper Published + Rebuttal of Banik + OSMU Talk
  • strangerep
  • · Replies 18 ·
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Graduate Does the Universe have a finite number of fundamentals to uncover?
  • Maximum7
  • · Replies 9 ·
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Graduate Has this experiment of "detecting" the quantum foam been conducted?
  • DyerMaker
  • · Replies 5 ·
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Undergrad How did Hamilton derive the characteristic function V in his essay?
  • selim
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Undergrad Is the Near Integer Muon to Electron Mass Ratio a Coincidence or Significant?
  • Jonathan Scott
  • · Replies 7 ·
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Graduate Is Doubly Special Relativity Connected to Variable Light Speed?
  • jjzeidner
  • · Replies 14 ·
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Undergrad Taylor expansion about lagrangian in noether
  • gionole
  • · Replies 1 ·
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Undergrad Are Real Numbers Essential in Scientific Measurements and Models?
  • Dale
  • · Replies 85 ·
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Undergrad Integrity of matter / space and time
  • tuneksan
  • · Replies 13 ·
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Undergrad Sign of the spatial part of the J.J interaction
  • gernos
  • · Replies 0 ·
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Undergrad Mond - gravity as two separate forces?
  • Fred Blame
  • · Replies 12 ·
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12
Graduate Exploring the Troubles with Dark Matter and the Quest for a Theory of Everything
  • strangerep
  • · Replies 12 ·
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Undergrad Atmospheric Density vs Altitude in an O'Neil Cylinder
  • MattRob
  • · Replies 1 ·
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Graduate Can the Strand Tangle Model Unify General Relativity and the Standard Model?
  • physics8553
  • · Replies 5 ·
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Undergrad Are non-perturbative methods in physics limited to quantum physics?
  • ohwilleke
  • · Replies 4 ·
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Undergrad Active transformation use-case in homogeneity
  • gionole
  • · Replies 13 ·
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Graduate How was this infinite sequence of numbers found? (non-commutative geometry )
  • Heidi
  • · Replies 4 ·
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Undergrad Restoring S.I. units to a Lagrangian in natural units
  • Precious Adegbite
  • · Replies 1 ·
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Undergrad Is loop quantum gravity dual to CFT?
  • kodama
  • · Replies 13 ·
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Undergrad Transformations for isotropy in terms of math
  • gionole
  • · Replies 1 ·
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Undergrad Coordinate transformation for isotropy
  • gionole
  • · Replies 7 ·
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7
Undergrad About the use of nominal definitions in physics
  • cianfa72
  • · Replies 28 ·
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Graduate Are there any theorems restricting possible QG candidates?
  • Kontilera
  • · Replies 1 ·
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Undergrad Three questions regarding QG theories
  • Kontilera
  • · Replies 12 ·
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Graduate Dark Matter as Superfluid (Khoury)
  • haushofer
  • · Replies 8 ·
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Undergrad Questions about deriving generic equations/laws from specific equations/laws
  • Hallucinogen
  • · Replies 0 ·
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Undergrad Existential problem on Electromagnetism and the combination of Relativity and Quantum Mechanics
  • Hak
  • · Replies 8 ·
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Graduate Lagrangian: kinetic matrix Z_ij and mass matrix k_ij
  • GGGGc
  • · Replies 1 ·
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Undergrad Looking for a unified expression for energy in rotating systems
  • GeneralJez
  • · Replies 1 ·
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High School Proof of the relation between antenna aperture and gain
  • alan123hk
  • · Replies 14 ·
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Undergrad PADME latest Oct 2, 2023 paper, searching for X17 particle
  • kodama
  • · Replies 11 ·
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Graduate Upper indices and lower indices in Einstein notation
  • GGGGc
  • · Replies 5 ·
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Undergrad Questions about submitting papers for peer review
  • Enos
  • · Replies 32 ·
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Graduate Inquiry Regarding Concept in Time and Celestial Motion
  • RBP3
  • · Replies 2 ·
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Undergrad What if unification does not work?
  • Randy Subers
  • · Replies 28 ·
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High School Prediction of McGaugh verified?
  • Structure seeker
  • · Replies 1 ·
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Graduate "Monstrous Higgs and Leech Spacetime"
  • mitchell porter
  • · Replies 0 ·
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Undergrad What is the distinction between invariance and covariance?
  • QuarkMaster
  • · Replies 10 ·
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Graduate Is it possible to obtain excess energy from a Townsend discharge?
  • environes
  • · Replies 6 ·
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Undergrad Alternatives to the Lagrangian?
  • Feynstein100
  • · Replies 17 ·
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Undergrad Open problems in nonlinear dynamics and Chaos
  • V9999
  • · Replies 1 ·
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High School Question about Euler's formula
  • jaydnul
  • · Replies 3 ·
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3
High School Balancing theories and empirical data, especially concerning string theory
  • jaketodd
  • · Replies 47 ·
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Undergrad What is the Limiting Mass at the Final Stages of Black Hole Evaporation?
  • dsaun777
  • · Replies 9 ·
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Undergrad New Preprint on Wide Binaries Supports MOND
  • ohwilleke
  • · Replies 14 ·
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Undergrad Lagrangian total time derivative for the velocity
  • gionole
  • · Replies 21 ·
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Undergrad Landau's inertial frame logic
  • gionole
  • · Replies 1 ·
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Undergrad Requirement of Holonomic Constraints for Deriving Lagrange Equations
  • deuteron
  • · Replies 1 ·
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High School Need help with understanding time travel
  • Physics_is_beautiful
  • · Replies 8 ·
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8
Graduate Basic Question about Gauge Transformations
  • Baela
  • · Replies 12 ·
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Undergrad Having trouble understanding Tensor Contraction
  • paperplane
  • · Replies 14 ·
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Undergrad How experimentally robust is Giant Dipole Resonance in 88Be?
  • kodama
  • · Replies 4 ·
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Graduate F.E.M and Hamilton's Principle (converting differential equations into integral equations)
  • Trying2Learn
  • · Replies 1 ·
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Undergrad All possible QFTs from geometry?
  • Suekdccia
  • · Replies 3 ·
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High School What are complex numbers good for?
  • lukephysics
  • · Replies 13 ·
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Undergrad Lagrangian doesn't change when adding total time derivative
  • gionole
  • · Replies 19 ·
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Graduate Confused about multipole expansion of vector potential
  • kelly0303
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Graduate If the solution of a field vanishes on-shell does it mean anything?
  • Baela
  • · Replies 1 ·
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Undergrad Does the Hamilton-Jacobi equation exist for chaotic systems?
  • andresB
  • · Replies 4 ·
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4
Graduate Can position and velocity vary independently in Hamilton's Principle?
  • Trying2Learn
  • · Replies 2 ·
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Undergrad How Does Landau Justify the Additivity of Lagrangians in Isolated Systems?
  • gionole
  • · Replies 9 ·
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Undergrad Status and Prospects of PADME Run 3
  • kodama
  • · Replies 10 ·
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Undergrad Ads/CFT and Ashtekar variables or spinfoam
  • kodama
  • · Replies 7 ·
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Undergrad Does mass conservation correspond to a pseudo-symmetry?
  • Feynstein100
  • · Replies 6 ·
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Graduate Vavryčuk's conformal FLRW metric as an alternative to dark energy and dark matter
  • member 673059
  • · Replies 8 ·
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Undergrad BRST quantization of Ashtekar variables
  • kodama
  • · Replies 6 ·
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High School Looking for help understanding string theory
  • Physics_is_beautiful
  • · Replies 10 ·
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Graduate NANOGrav waves support string theory?
  • apostolosdt
  • · Replies 2 ·
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Undergrad Can Inhomogeneities in the Higgs Field Accelerate Galaxy Formation?
  • nnunn
  • · Replies 11 ·
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Graduate Can Non-Commutative Geometry Describe Gluons?
  • casparov
  • · Replies 42 ·
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Graduate Thermodynamics/gravity/CFT correspondence
  • Demystifier
  • · Replies 8 ·
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8
Undergrad What maps are considered in the Polyakov path integral?
  • GeniVasc
  • · Replies 0 ·
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0
Graduate Modified Gravity against Dark Matter
  • Floyd_13
  • · Replies 5 ·
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Graduate What does it mean when the eom of a field is trivially satisfied?
  • Baela
  • · Replies 4 ·
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4
Undergrad Proving that the Lagrangian of a free particle is independent of q
  • okaythanksbud
  • · Replies 1 ·
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Undergrad Can Superstring Theory Ever Be Refuted or Confirmed?
  • Unique_Engineer
  • · Replies 24 ·
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Undergrad Deur Gravitational self-interaction Doesn't Explain Galaxy Rotation Curves
  • kodama
  • · Replies 72 ·
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High School What Principles Govern the Emergence of Spacetime According to Renate Loll?
  • atyy
  • · Replies 2 ·
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Undergrad Why isn't the Lagrangian invariant under ##\theta## rotations?
  • PhysicsRock
  • · Replies 5 ·
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5
Graduate H-Theorem and Lagrange multipliers
  • VVS2000
  • · Replies 7 ·
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7
Graduate Is the kinetic mixing gauge-invariant for non-Abelian gauge fields?
  • Ramtin123
  • · Replies 3 ·
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Graduate Kahana and Kahana predicted Higgs mass, top mass in 1993
  • mitchell porter
  • · Replies 16 ·
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Undergrad Why do dimensions curl up or expand?
  • Trollfaz
  • · Replies 5 ·
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5
Graduate LQG Legend Writes Paper Claiming GR Explains Dark Matter Phenomena
  • ohwilleke
  • · Replies 264 ·
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Graduate Is MOND Inadequate for Explaining Vertical Oscillations in Galaxy Motions?
  • strangerep
  • · Replies 4 ·
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Undergrad Tensor Calculus (Einstein notation)
  • paperplane
  • · Replies 4 ·
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4
Graduate Are equations of motion invariant under gauge transformations?
  • Baela
  • · Replies 3 ·
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Undergrad Consequences of the absence of global symmetries...?
  • Suekdccia
  • · Replies 6 ·
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Graduate Virial theorem and translational invariance
  • gjk
  • · Replies 2 ·
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