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 Momentum and Action: Understanding Lagrangian Mechanics
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Graduate Stretching Coordinates System/Reductive perturbation theory
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Undergrad Canonical quantization of Ashtekar's new variables
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Graduate MOND: Two Small Masses at Great Distance - Orbit Speed
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Undergrad What is the significance of the T - V Lagrangian of a system?
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Graduate Where Can I Find Up-to-Date Resources for Studying MOND Theory?
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Graduate Could a CPL parametrization be included into Brans-Dicke model?
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Undergrad At which point is gravity inconsistent with quantum mechanics?
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Graduate What does Rovelli mean with "oriented and ordered graph"?
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Graduate Inference from fine-tuning to a multiverse
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Undergrad Does Superfluid Dark Matter provide a successful explanation for MOND?
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Undergrad Is Connes' Model of the Higgs Field a Wormhole?
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Graduate What do you think of this definition of Spin Networks?
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Graduate Solving this non-holonomic system using Dirac-Bergmann theory
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Undergrad How do I check if the canonical angular momentum is conserved?
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Undergrad SO(3) -- What is the advantage of knowing something is in a group?
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Undergrad The Possibility of Faster-Than-Light Communication?
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Undergrad Comparison of Deur's universe vs. L-CDM
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Graduate The kinetic term of the Hamiltonian is not positive definite
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Graduate The Nambu-Goto Action - Questions & Answers
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Graduate Retrieving the loops on spinfoams
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Undergrad MOND from MacDowell-Mansouri geometrical formulation
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Undergrad Primordial neutron star -- a new candidate for dark matter
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Graduate Why are Euler's angles picked exactly that way?
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Graduate Double copies and the black hole electron
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High School How many electrons to make a stable gravitational object?
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Undergrad Trouble for physical collapse models?
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Graduate Does the theory of information have anything to offer for physics?
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Graduate Current status of Tom Banks' Holographic space time?
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Undergrad The logical impossibility of proving that indeterminism is true?
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High School Why is Maldacena's paper published in two journals?
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High School Tangran, Inertial Mass and Gravitational Mass
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Graduate Spectrum of the Liouville Operator
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Graduate How do we derive the number of string excitation modes for large N?
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Undergrad New anomaly observed in 12C X17
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Undergrad Hamilton's Principle (HP), Lagrangian
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Graduate Contravariance, Covariance, stress and position vector
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Undergrad Multiple (Non-Interacting) Universes?
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High School Electrons & Photons: Are They Tiny Gaseous Planets?
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Graduate A Proposed Black Hole Entropy Calculation
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High School The 3D Universe: A Speck in the 4D Universe
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Graduate Independence of generalized coordinates and generalized velocities
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Graduate Question about dilaton monopole interaction derivation
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Undergrad Is "nondimensionalization" a misnomer?
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Undergrad "Different" energy eigenstates - clarification of meaning?
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Graduate Subjectively deterministic-looking features of scatter plots
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Graduate The force from the energy gradient
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High School The Many TOE's Theory: Examining the Possibilities
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Graduate How are the intertwiners related to Schur's lemma?
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Undergrad Graviweak Unification and Coleman-Mandula theorem
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Undergrad Carlo Rovelli, loop quantum gravity and point particles
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Graduate Non-unitary gauge transformation
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High School What if we cut out the Big Bang and inflation?
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Undergrad Noncommutative geometry and asymptotic safe gravity and MOND
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Undergrad Trying To Conceptualize Two Dimensions Of Time
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Undergrad Can Core Theory Be Derived From Nine Lines?
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Graduate Loop quantum gravity and General relativity
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Undergrad AI Discovers Alternate Physics - What Do You Think?
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Undergrad Laplace equation with irregular boundaries
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Undergrad Is the Continuum Limit of Spin Foam Dynamics Equivalent to Massless Gravitons?
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Undergrad Axion Mass Acquisition: Do Axions Acquire Mass?
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Undergrad Has anyone done a PPN formalism on Dark Matter? Or other non-GR?
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Graduate Three generations of Fermions from octonions Clifford alegbras
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Undergrad Explaining how the Higgs fields gives particles mass
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Undergrad Current theory of composite quarks and leptons
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Undergrad The different generators of canonical transformations
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Undergrad Gravitational potential of an ellipsoid
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Undergrad Hamiltonian formalism and partition function
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Undergrad Would infinite entropy break all symmetries?
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Undergrad Designing an Invariant Lagrangian: Rules and Considerations
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Undergrad Can Shape Dynamics Be Tested Against Quantum Mechanics?
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Graduate Why do we need a quantum correction for black hole entropy?
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High School Algebraic Operations on Energy-Momentum Relationships
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Undergrad Is a Unified Field Theory the Key to Understanding the Universe?
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Undergrad Could the Lorentz symmetry be theoretically broken in vacuum?
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Graduate Why Can't We Detect Cosmic Rays Beyond the GZK Limit?
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Undergrad Alternative ways to quantize Ashtekar variables
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Graduate Cross section-temperature equivalence
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Graduate Vacuum Transitions and Lorentz Symmetry Breaking
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Graduate Roughly how many people in this world actually know about string theory?
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Undergrad Understanding the critic of this author for conventional S field
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Undergrad Higher Dimensional Time Implications?
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Graduate Volovik vs Witten vs Wen, etc.
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Undergrad From a false vacuum to a true vacuum?
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Undergrad Measuring Spacing with Shortcut Technique: Is Uniformity Achieved?
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High School Why can't gravity be just a form of magnetic attraction?
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Undergrad String theory calculation of Extremal black hole entropy problem
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Undergrad Coleman Lecture: Varying E-M Lagrangian - Problem 3.1 Explained
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Graduate An ab initio Hilbert space formulation of Lagrangian mechanics
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Undergrad Alternate expressions for the uncertainty propagation
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High School Understanding the Concept of Infinity as a Reference in Physics: Explained
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High School Does the quantum vacuum have information?
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High School Energy: Abstract Concept or Entity?
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Undergrad Changing or breaking the most fundamental laws and symmetries?
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Undergrad Time derivative of the moment of inertia tensor
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Undergrad Spin Foam models in Loop Quantum Gravity
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Undergrad A new concept in Low Mass Dark Matter detection
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Undergrad A new approach to the information Paradox
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Undergrad Explaining the Hierarchy problem for beginners
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Undergrad Possible universes as in Modal Logics
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