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 Derivatives in 3D and Dirac Delta
  • UVCatastrophe
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Graduate Pentagons, hexagons, quantum gravity, AdS/CFT
  • mitchell porter
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Graduate Why is the Number 3 So Prevalent in our Universe?
  • Wolfman29
  • · Replies 8 ·
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  • Poll Poll
Graduate Combined fourth quarter MIP poll (for most important QG papers)
  • marcus
  • · Replies 11 ·
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Graduate Bosonic Strings and their Verma modules
  • Korybut
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Graduate Can I substitute the new coordinates in the old hamiltonian?
  • Coffee_
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Graduate Do the Euler-Lagrange equations hold for a time-dependent V?
  • Coffee_
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Graduate Is the graviton the only thing to find in LQG?
  • MTd2
  • · Replies 31 ·
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Graduate Planck Stars and GR black and white holes
  • wabbit
  • · Replies 4 ·
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Graduate Is There an Intrinsic Weight to Entanglement in Quantum Systems?
  • Borek
  • · Replies 13 ·
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Graduate Correspondence between particle and string vibration mode
  • Blackberg
  • · Replies 19 ·
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Graduate Obtain Equation Using Hamilton's Principle
  • Last-cloud
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Graduate Stress tensor from action in Landau-Ginzburg field theory
  • ChrisPhys
  • · Replies 5 ·
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Graduate E-L equations only hold for independent variables?
  • Coffee_
  • · Replies 4 ·
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Graduate Why do negative energy solutions cause issues in Padmanabhan's Gravitation?
  • ShayanJ
  • · Replies 1 ·
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Graduate How can I know when the Lagrange multiplier is a constant?
  • Coffee_
  • · Replies 9 ·
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Graduate Markopoulou geometrogenesis planck similar to LQG?
  • Edward Wij
  • · Replies 2 ·
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Graduate Green's function? Physical interpretation?
  • umerfarooque
  • · Replies 4 ·
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Graduate What is the impact of the refutation of "quantum foam"?
  • sshai45
  • · Replies 6 ·
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Graduate Experimental proof of Unruh Effect
  • Edward Wij
  • · Replies 6 ·
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Graduate Is the wave function the invariant thing?
  • friend
  • · Replies 12 ·
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Graduate Taking the time derivative of a curl
  • nabeel17
  • · Replies 1 ·
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Graduate Quantum entanglement and multiple dimensions
  • theangrycanary
  • · Replies 3 ·
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Graduate Confusion: Fluctuation Theorem, Poincare Recurrence Theorem
  • Jimster41
  • · Replies 7 ·
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Graduate Clarification on key concepts of string theory
  • Teichii492
  • · Replies 1 ·
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Graduate Integral Operation: Why Does nηIJ Vanish?
  • moriheru
  • · Replies 4 ·
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Graduate "mysterious connection between number theory, algebra and ST
  • audire
  • · Replies 2 ·
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Graduate Can Quantum Gravity Allow Spacetime and Matter to Interchange?
  • lucas_
  • · Replies 2 ·
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Graduate Molecular Modeling of Fluid Mechanics
  • Ben Johnson
  • · Replies 2 ·
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Graduate Question about the KAM theorem
  • xdrgnh
  • · Replies 1 ·
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Graduate Six themes for QG in 2015 (developments to watch for)
  • marcus
  • · Replies 37 ·
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Graduate The Falling Plate Paradox: Does Gravity or Perfect Vacuum Have More Force?
  • loddie
  • · Replies 6 ·
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Graduate On the origin of fermionic field
  • kroni
  • · Replies 8 ·
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Graduate Where to get started in Loop Quantum Gravity?
  • Leucippus
  • · Replies 25 ·
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Graduate Generating function and Lagrangian invariance
  • Coffee_
  • · Replies 4 ·
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Graduate Canonical transformations, poisson brackets
  • Coffee_
  • · Replies 1 ·
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Graduate 2 theories, same experimental predictions, can one fail but
  • Silber5
  • · Replies 4 ·
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Graduate Combining 4 Forces: What You Need to Prove Theory
  • naqibpeace
  • · Replies 4 ·
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Graduate What is the opposite of a field theory?
  • resurgance2001
  • · Replies 3 ·
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Graduate Has LQG Research Yielded Any Mathematical Breakthroughs?
  • Macuario
  • · Replies 5 ·
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Graduate What Exists Between Universes in the Multiverse Theory?
  • akshaya
  • · Replies 7 ·
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Graduate Is the Hubble Constant Linked to the Second Law of Thermodynamics?
  • Jimster41
  • · Replies 47 ·
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Graduate The Warp Drive Problem: Can Negative Energy/Matter Exist?
  • Mrwheatable
  • · Replies 1 ·
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Graduate Quick question about LQG Self-Dual Black Holes
  • wabbit
  • · Replies 9 ·
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Graduate Is Everything in Physics Just a Collection of Properties?
  • student34
  • · Replies 3 ·
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Graduate Does the Monster Group appear in String Theory?
  • nuclearhead
  • · Replies 2 ·
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Graduate Twice of supersymmetric transformation = translation
  • wphysics
  • · Replies 12 ·
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Graduate Gravity as a particle-based force vs space-time warping
  • Cobalt101
  • · Replies 6 ·
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Graduate Identifying conserved quantities using Noether's theorem
  • Snydes
  • · Replies 5 ·
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Graduate Is There a Link Between Octononionic Gravitation and the Search for Gravitons?
  • member 11137
  • · Replies 7 ·
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Graduate Buckingham-Pi for "algorithmic" non-dimensionalization
  • sysidentify
  • · Replies 2 ·
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Graduate Physical applications of Riemann zeta function
  • vancouver_water
  • · Replies 9 ·
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Graduate Classical field theory, initial and boundary conditions
  • Coffee_
  • · Replies 1 ·
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Graduate CC Problem Beyond the Standard Model
  • lucas_
  • · Replies 1 ·
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Graduate Where is sum of divergent series used in physics?
  • Sinisa
  • · Replies 2 ·
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Graduate Is the Origin of Time at the Bounce in LQC a Solution to the Entropy Problem?
  • wabbit
  • · Replies 4 ·
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Graduate Can a locally non-special place emit Hawking radiation from a black hole?
  • wabbit
  • · Replies 6 ·
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Graduate Black holes are the shadows of 4D objects (idea)
  • stephog
  • · Replies 1 ·
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Graduate The Theory of Everything (string theory)
  • Gbl911
  • · Replies 31 ·
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Graduate On the orthogonality of Sturm-Liouville eigenvectors
  • mjordan2nd
  • · Replies 2 ·
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Graduate Infinitesimal transformations and Poisson brackets
  • JonnyMaddox
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Graduate LQG and black holes -- back to basics
  • naima
  • · Replies 3 ·
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Ed Witten Interview: Nobel-Winning Physicist on String Theory
  • John86
  • · Replies 1 ·
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Graduate Question about derivation of Euler-Lagrange eq.
  • Agrasin
  • · Replies 6 ·
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Graduate Can Holometer Null Result falsify LQG?
  • Edward Wij
  • · Replies 28 ·
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Graduate Understanding Particle Interactions with Scalar and Vector Fields
  • webb202
  • · Replies 3 ·
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Graduate Information as the key underlying physical principle
  • rumborak
  • · Replies 80 ·
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Graduate Haggard Rovelli thermodynamics paper says what time is
  • marcus
  • · Replies 46 ·
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Undergrad Do we have any idea what would happen at theoretical absolute zero?
  • psuedoben
  • · Replies 4 ·
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Graduate ADS/CFT Correspondense question
  • incompetence123
  • · Replies 21 ·
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Undergrad Books for deriving old physical formulas
  • ancientlord
  • · Replies 1 ·
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Graduate Degree of freedom of gravitino
  • shooride
  • · Replies 3 ·
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Graduate Holographic Principle question
  • incompetence123
  • · Replies 13 ·
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Graduate Fourier coefficients in string theory
  • moriheru
  • · Replies 2 ·
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Graduate Problems in Gravity: Quantum Gravity & Age of Learning Theory
  • TimeRip496
  • · Replies 1 ·
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Graduate Dark matter -- particles or modified gravity?
  • copernicus1
  • · Replies 3 ·
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Graduate String theory: why can't strings move at the speed of light?
  • Dixanadu
  • · Replies 17 ·
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Graduate Couldn't you unify gravity & the cosmological constant?
  • Vree
  • · Replies 10 ·
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Graduate Derivatives with respect to a Supernumber?
  • "pi"mp
  • · Replies 19 ·
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Graduate SUSY N=1 masless supermultiplet
  • Jesus
  • · Replies 1 ·
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Graduate How to check theoretical point of view
  • Saturnine
  • · Replies 11 ·
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Graduate String theory and the M theory?
  • Nick V
  • · Replies 1 ·
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Undergrad Variables & Dimensions (total noob)
  • wubs23
  • · Replies 7 ·
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Graduate Scale Symmetry: Resources, People, History
  • Digitalism
  • · Replies 4 ·
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Graduate Help to find articles with new concepts about Gravity
  • Gitirana
  • · Replies 3 ·
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Graduate Axiomatic postulates vs. experimental derivation.
  • TRB8985
  • · Replies 5 ·
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Graduate Is the gravitational constant actually a variable?
  • Luis Ochoa
  • · Replies 1 ·
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Graduate Question about the Limitations of Physics
  • crastinus
  • · Replies 6 ·
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Graduate What Could Einstein Have Thought About String Theory?
  • alvarogz
  • · Replies 8 ·
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Graduate "degree of freedom" (singular)?
  • Stephen Tashi
  • · Replies 2 ·
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Graduate Introduction to Algebraic Geometry in String Theory?
  • "pi"mp
  • · Replies 12 ·
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Graduate How did we arrive to Hamilton's principle ?
  • Nikitin
  • · Replies 4 ·
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Graduate Tensor Analysis in vector and matrix algebra notation
  • NotASmurf
  • · Replies 1 ·
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Graduate Predictions for antimatter are weird
  • Matthew Travers
  • · Replies 1 ·
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Graduate The probability of objects spec Q out of infinite variables
  • corbensown
  • · Replies 1 ·
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Graduate Understanding Spin States: Theoretical Minimum and Normal Coordinate Systems
  • Quarlep
  • · Replies 3 ·
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Graduate Unruh Effect: When Does an Object Receive Radiation?
  • tzimie
  • · Replies 11 ·
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Graduate The classical limit of AdS/CFT
  • Demystifier
  • · Replies 2 ·
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Graduate Is the Game of Life a metaphor for the search for a Theory of Everything?
  • microsansfil
  • · Replies 40 ·
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Graduate "The Shape of Inner Space", Shing-Tung Yau, preview or $.47
  • Spinnor
  • · Replies 3 ·
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