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