Beyond the Standard Models Forum

Post thread
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.
High School Gravitational wave emission from electrons
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Are physical constants 'constant' axiomatically, or is there a theory?
  • · Replies 6 ·
Replies
6
Views
1K
Graduate Donoghue's critique of asymptotic safety
  • · Replies 1 ·
Replies
1
Views
3K
High School Einstein summation notation, ambiguity?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Tom Banks' New Paper - Contra Eternal Inflation
  • · Replies 4 ·
Replies
4
Views
3K
High School Twistor Theory: Evaluating Its Relevance in Modern Unification Theories
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Lagrangian to the Euler-Lagrange equation
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Problem of time in quantum field theory?
  • · Replies 37 ·
2
Replies
37
Views
13K
Undergrad Are there any linear quantum gravity theories?
  • · Replies 15 ·
Replies
15
Views
4K
Undergrad Is Gravity a Force or Just Curved Spacetime?
  • · Replies 19 ·
Replies
19
Views
5K
High School Lost in Math - Sabine Hossenfelder
  • · Replies 4 ·
Replies
4
Views
3K
High School A Question about space and the multiverse
  • · Replies 9 ·
Replies
9
Views
5K
Undergrad Eigenvalue Problem -- Justification
  • · Replies 11 ·
Replies
11
Views
1K
High School Manipulating quantities with natural units
  • · Replies 2 ·
Replies
2
Views
5K
Graduate New BSM Theory: Investigating Claims
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Is Gravity Part Of The Standard Model?
  • · Replies 30 ·
2
Replies
30
Views
9K
Undergrad Is SUSY still a possibility with current EDM limits and energy constraints?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad How to make something independent of the coordinate frame?
  • · Replies 1 ·
Replies
1
Views
1K
High School Does d'Alembert Principle Hold Without External Forces in a Galactic Frame?
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad What Unsolved Mysteries in Physics Lack a Theoretical Explanation?
  • · Replies 40 ·
2
Replies
40
Views
10K
Graduate Scientists are searching for a mirror universe....
  • · Replies 7 ·
Replies
7
Views
3K
High School Testing the No-Hair Theorem with GW150914
  • · Replies 3 ·
Replies
3
Views
3K
High School Why are Boltzmann Brains considered a problem for physics?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Conflict of domain and endpoints in Noether's theorem
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad The new definition of kg and the mass-energy equivalence
  • · Replies 4 ·
Replies
4
Views
5K
Undergrad Simulation Hypothesis: How Will Touch Occur?
  • · Replies 11 ·
Replies
11
Views
4K
Graduate Towards formulating an invariant Lagrangian
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Could this unified theory be correct?
  • · Replies 15 ·
Replies
15
Views
4K
Graduate Understanding Membrane Theory: Main Concepts & Beautiful GI Results
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Condition for delta operator and total time differential to commute
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Did Paul Dirac believe in multiple universes?
  • · Replies 1 ·
Replies
1
Views
3K
High School How a Lagrangian can represent a theory?
  • · Replies 4 ·
Replies
4
Views
7K
High School Exploring String Theory: Open and Closed Strings
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Infinite-dimensional symmetry....
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Liouville's theorem and time evolution of ensemble average
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Would Wheeler's oscillatory universe model create different laws?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Why don't strings have a Planck mass?
  • · Replies 7 ·
Replies
7
Views
4K
Graduate How to construct a spin-3/2 theory from the ground up
  • · Replies 2 ·
Replies
2
Views
7K
Undergrad Eigenvectors of the EM stress-energy tensor
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Covariant and contravariant tensors
  • · Replies 8 ·
Replies
8
Views
9K
Graduate How to Calculate Arc Length of a Helical Path on a Torus?
  • · Replies 1 ·
Replies
1
Views
14K
Graduate Is the Randall-Sundrum model background independent?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Theoretical Torricelli Vacuum Test: Impurity Impact on Pressure
  • · Replies 18 ·
Replies
18
Views
11K
Graduate Unknown mathematical methods in Physics?
  • · Replies 5 ·
Replies
5
Views
9K
Graduate Getting structure data from a partition function?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Is Seth Lloyd's cosmological model background independent?
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad 'Formulations' of Physical Theories: Overview?
  • · Replies 2 ·
Replies
2
Views
14K
Undergrad Strange formulation of Gauss' Theorem
  • · Replies 3 ·
Replies
3
Views
1K
High School Strong nuclei force and extra dimensions
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Developments to unify quantum theory with General Relativity?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Geometry of Classical Physics in terms of Gauge Theory geometry?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad What multiverse model is this author referring to?
  • · Replies 7 ·
Replies
7
Views
3K
High School Energy as a non relativistic scalar and Galilean invariance
  • · Replies 7 ·
Replies
7
Views
1K
Undergrad Is spacetime emergent - and in which theories?
  • · Replies 48 ·
2
Replies
48
Views
16K
Undergrad Are all Cellular Automata models of universes?
  • · Replies 11 ·
Replies
11
Views
4K
High School Is string theory dead or still valid
  • · Replies 55 ·
2
Replies
55
Views
25K
Graduate Question about Euler’s Equations when Auxiliary Conditions are Imposed
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Which is the quantized variable in quantum gravity?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Were there any valid classical unified field theories ?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Hints for lepton flavor violation in B-hadron decays
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Is Time More Fundamental Than Space According to Smolin's Theories?
  • · Replies 14 ·
Replies
14
Views
6K
Graduate How does this study affect the holographic principle?
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Electrostatic interaction in the Simulation Hypothesis
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Phase space density function and Probability density function
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How Does Quantum Gravity Influence Our Understanding of Quantum Mechanics?
  • · Replies 6 ·
Replies
6
Views
4K
High School Does dark matter travel faster than light?
  • · Replies 3 ·
Replies
3
Views
9K
Undergrad Missing exponent in "Theoretical Minimum"?
  • · Replies 4 ·
Replies
4
Views
2K
High School Can String Theory Be Tested and Solve Cosmic Mysteries?
  • · Replies 7 ·
Replies
7
Views
9K
Undergrad Theories and their domains of applicability?
  • · Replies 16 ·
Replies
16
Views
11K
Graduate Approximate solutions to Kuramoto synchronization model
  • · Replies 2 ·
Replies
2
Views
5K
Graduate Condensed matter physics, area laws & LQG?
  • · Replies 388 ·
13
Replies
388
Views
177K
Undergrad Derivative operators in Galilean transformations
  • · Replies 5 ·
Replies
5
Views
4K
High School Are we past due to declare EM/Light/Waves its own dimension?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Determinism: mathematical models
  • · Replies 9 ·
Replies
9
Views
9K
Graduate How is string theory related to MWI?
  • · Replies 3 ·
Replies
3
Views
6K
Graduate Is the Higgs Field Key to Understanding Gravity and Inertia?
  • · Replies 1 ·
Replies
1
Views
6K
Graduate LHC and SUSY Aug 2010 results, implications for string theory
  • · Replies 1 ·
Replies
1
Views
7K
Graduate Detecting large extra dimensions via mini black holes ?
  • · Replies 1 ·
Replies
1
Views
8K
Undergrad Lorenz gauge, derivative of field tensor
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Can Axioms Revolutionize Our Understanding of Physics?
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Froggatt & Nielsen: top-Higgs blobs explain everything
  • · Replies 6 ·
Replies
6
Views
3K
High School How physics equations transform under inverse of parameters
  • · Replies 6 ·
Replies
6
Views
11K
High School Sabine Hossenfelder and Beauty in Physics
  • · Replies 82 ·
3
Replies
82
Views
23K
Graduate What is the Fundamental Nature of Location in Physics?
  • · Replies 1 ·
Replies
1
Views
19K
Graduate Has Sir Michael Atiyah Uncovered New Links Between Arithmetic and Physics?
  • · Replies 41 ·
2
Replies
41
Views
15K
Graduate Use of tensor densities in coordinate transformation
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad What are the "central/axiomatic equations of physics" from which....
  • · Replies 3 ·
Replies
3
Views
8K
Undergrad What is the role of the divergence theorem in deriving local laws in physics?
  • · Replies 11 ·
Replies
11
Views
6K
Graduate Is M-Theory more fundamental than String Theory?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Definition of the Lagrangian finite strain tensor
  • · Replies 1 ·
Replies
1
Views
7K
Undergrad Why do we ignore the contribution to a surface integral from the point r=0?
  • · Replies 42 ·
2
Replies
42
Views
5K
High School If there is no multiverse then what is beyond the Universe?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate A question about graviton self-interaction
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Data analysis for theoretical vs experimental results
  • · Replies 3 ·
Replies
3
Views
6K
Undergrad Integral equation for large surfaces
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Question about Lorenz invariance and cluster decomposition
  • · Replies 15 ·
Replies
15
Views
4K
Undergrad Why not a particle for charge?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Electrostatic in string theory or LQG
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Calculating Jacobian Determinant
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad A Quadrillion Standard Models from F-theory arxiv.org/pdf/1903.00009
  • · Replies 2 ·
Replies
2
Views
3K