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.
High School Does string theory provide any additional insight to quantum mechanics?
  • KarminValso1724
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Graduate Exceptional group and grand unified theory
  • shereen1
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Graduate What if black holes can violate second law of thermodynamics
  • kodama
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Undergrad Complex Exponential solutions in time invariant systems
  • Dagorodir
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High School Below and above the Planck Scale
  • gva
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Graduate Study "De Sitter Supergravity" Effectively
  • shereen1
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Graduate What are the implications of a new 750GEV particle to GUTs?
  • kodama
  • · Replies 34 ·
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Undergrad Is Hamilton's principle an empirical statement?
  • betelgeuse91
  • · Replies 24 ·
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Undergrad How does Gauge fixing fix anything?
  • carllacan
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Graduate Relation between gravity and entropy
  • Esfand Yar Ali
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Graduate Question about Phase Space
  • Muthumanimaran
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Undergrad What is the motivation for principle of stationary action
  • Frank Castle
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Graduate Proof for Close Packing of Congruent Identical Spheres
  • fizixfan
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Graduate Is Anomaly Cancellation Covered in Zweibach's Book on String Theory?
  • MathematicalPhysicist
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High School Does quantum gravity inside brain change perception of time
  • Sachin_Vaidya
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Undergrad Extensive properties as measures
  • burakumin
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Graduate Time as a Force: Should There Be a Timetron?
  • dimazayka
  • · Replies 13 ·
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Undergrad How do the concepts of "boundary"and"infinitesimal" interact
  • Pjpic
  • · Replies 5 ·
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Graduate Spin 2 theory and connection to GR
  • kdv
  • · Replies 1 ·
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Graduate Alternatives to String theory and loop quantum gravity
  • twistor
  • · Replies 18 ·
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Graduate Resonance Propulsion: Using EM Waves to Induce Movement
  • Human268
  • · Replies 7 ·
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Undergrad Is there a real need for a theory of everything (ToE)?
  • zdroide
  • · Replies 7 ·
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Graduate PhD Project Ideas on Beyond Standard Model Physics
  • Ramtin123
  • · Replies 32 ·
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High School Is it possible to do experiment on the Planck scale?
  • Ken Gallock
  • · Replies 6 ·
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Undergrad How does SU(5) explain proton-electron charge equivalence?
  • cletus
  • · Replies 2 ·
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Graduate Spontaneous breaking of supersymmetry
  • shereen1
  • · Replies 2 ·
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Graduate Unifying Forces in the Early Universe: How and Why?
  • GhostLoveScore
  • · Replies 8 ·
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High School Can a Universe Exist Without Space and Time?
  • KarminValso1724
  • · Replies 8 ·
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Graduate Formulating Supergravity Under De Sitter Group: A Comprehensive Reference
  • shereen1
  • · Replies 10 ·
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Graduate Koide, neutrinos, and phenomenology
  • mitchell porter
  • · Replies 6 ·
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Graduate Thoughts on Quantum Holonomy Theory?
  • kodama
  • · Replies 20 ·
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Graduate What is the Effect of a Lorentz Force on a Pendulum's Gyroscopic Stabilization?
  • wrobel
  • · Replies 10 ·
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Graduate From ##D3-Brane## to ##AdS_5-Schwarzschild##
  • ShayanJ
  • · Replies 1 ·
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Undergrad Could the speed of light just be "terminal velocity"?
  • ShadesAtNight
  • · Replies 8 ·
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Graduate Time integral of worldsheet current
  • ShayanJ
  • · Replies 6 ·
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Graduate Invariance of Wess Zumino Action under SUSY
  • fa2209
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Graduate What would happen if only gravitons existed?
  • twistor
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High School Gravity Thought Problem: Theoretical System of Electron and Positron"
  • Jim Lundquist
  • · Replies 5 ·
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Graduate Lagrangian of a monopole (Einstein notation is used)
  • IanBerkman
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Graduate Symplectic Majorana Spinors in 5 Dimension
  • Francisca Ramirez
  • · Replies 5 ·
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Undergrad Symmetry in Physics: Books/Papers for Physical Theories
  • Logic Cloud
  • · Replies 1 ·
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Undergrad Is the Hamiltonian always the total energy?
  • alivedude
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Graduate Is Torsion Always Zero in Supergravity?
  • shereen1
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Undergrad Perfect Spheres: A Theoretical Possibility or an Impossibility?
  • kolleamm
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Graduate How Does the Infinite Momentum Frame Relate to Differential Forms in Mechanics?
  • Ddddx
  • · Replies 5 ·
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High School Hawking radiation / String Hagedorn temperature?
  • TeethWhitener
  • · Replies 7 ·
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Graduate Research Orthogonal Lie Group for Physics Applications
  • erbilsilik
  • · Replies 4 ·
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Undergrad Is it possible for pure energy to have mass?
  • ARC123
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Graduate Why doesn't Noether thm produce exactly the stress-energy tensor?
  • roomzeig
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High School Have New Particles Beyond the Higgs Been Discovered at CERN?
  • Justice Hunter
  • · Replies 2 ·
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High School Are Strings Really Like Hoola Hoops in Physics?
  • Dook
  • · Replies 9 ·
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Graduate Variation of Lagrangian w/r to canonical momenta
  • muscaria
  • · Replies 3 ·
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  • Poll Poll
Graduate A fundamental question about research
  • MacRudi
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Graduate Most General form of Canonical Transformation
  • kolawoletech
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Undergrad Inflation and the false vacuum
  • friend
  • · Replies 87 ·
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Undergrad Relation between vectors in body coordinates and space coordinates
  • Happiness
  • · Replies 4 ·
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Graduate Effective cosmo const explained w/o vacuum energy
  • marcus
  • · Replies 8 ·
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Undergrad Are there global gauge transformations in typical electrodynamics potentials?
  • Rolandosmx
  • · Replies 4 ·
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High School String oscillations, not parallel to momentum?
  • Spinnor
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Undergrad Inverse Square Law and various space dimensions
  • Lapidus
  • · Replies 1 ·
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Graduate Loop quantum gravity and diffeomorphism group
  • A. Neumaier
  • · Replies 8 ·
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Undergrad Is Time Merely a Measurement of Change in Space?
  • kent davidge
  • · Replies 8 ·
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Undergrad Einstein's Unified Field Theory: Approaches Explored
  • superbat
  • · Replies 4 ·
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  • Poll Poll
Graduate Poll: First quarter 2016 MIP (most important QG papers)
  • marcus
  • · Replies 2 ·
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High School What kind of experiment is needed to quantize gravity?
  • Ken Gallock
  • · Replies 4 ·
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Graduate Can a Scalar Field Exist Without a Net Source?
  • Shubham135
  • · Replies 2 ·
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Graduate Atoms Of Space, Gravity and the Cosmological Constant
  • marcus
  • · Replies 1 ·
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Is There Really a Theory of Everything to Discover?
  • KarminValso1724
  • · Replies 1 ·
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Graduate Can Theoretical Physicists Discover New Aspects of the Higgs Boson?
  • Peter25samaha
  • · Replies 5 ·
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Graduate Ali and Das, "Cosmology from quantum potential"
  • bcrowell
  • · Replies 76 ·
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High School Vibrating strings, quark strings more complicated?
  • Spinnor
  • · Replies 1 ·
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Undergrad General notion of coordinate change
  • Logic Cloud
  • · Replies 1 ·
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Undergrad What can we learn from the Carlofest speakers' list?
  • marcus
  • · Replies 7 ·
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Undergrad Can Matter Absorb Energy from Gravitational Waves?
  • tim9000
  • · Replies 11 ·
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High School How does the vibration of a quantum string translate to a "particle's" mass?
  • KarminValso1724
  • · Replies 2 ·
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High School I and j as subscript and superscript?
  • Physicsphysics
  • · Replies 6 ·
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  • Poll Poll
Graduate Poll: Fourth quarter 2015 MIP (most important QG papers)
  • marcus
  • · Replies 6 ·
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Undergrad Intuition for Hamilton's Principle
  • Sturk200
  • · Replies 4 ·
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Graduate Constructing massive N=1 SUSY Multiplets
  • DrSuage
  • · Replies 5 ·
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Graduate Physical Implications of the Transition from 2 M Branes to 5 M Branes
  • MacRudi
  • · Replies 5 ·
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High School Why wouldn't quantum gravity work this way?
  • maNoFchangE
  • · Replies 9 ·
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Undergrad A new blog about LQG and related
  • marcus
  • · Replies 1 ·
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Undergrad Why is the Gradient of Displacement Vector Parallel to \( \vec{r} - \vec{r'} \)?
  • TheCanadian
  • · Replies 3 ·
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Graduate Explore "LQG" & "Gravitational Waves" on Amazon
  • julian
  • · Replies 15 ·
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Undergrad Positive Mass in the Lagrangian from Landau
  • Oppie
  • · Replies 5 ·
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High School Is What we Know for Now Certain?
  • Bumpeh
  • · Replies 4 ·
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Undergrad Energy density of a 1D string?
  • James William
  • · Replies 2 ·
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Undergrad Euler-Lagrange equation even if the action isn't stationary?
  • Happiness
  • · Replies 3 ·
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Undergrad Is Loop Quantum Gravity as Popular as String Theory in Today's Physics Research?
  • BornCane
  • · Replies 2 ·
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Graduate Smolin: Lessons from Einstein's discovery....
  • strangerep
  • · Replies 31 ·
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Undergrad Understanding Hamiltonian Conservation Laws
  • Physgeek64
  • · Replies 3 ·
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Graduate Info escape from BH (videos up from Nordita conference)
  • marcus
  • · Replies 1 ·
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Undergrad Any inflexion-point solutions to Euler-Lagrange equation?
  • Happiness
  • · Replies 1 ·
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Graduate D Branes and Gluon-Quark Interaction.
  • nigelscott
  • · Replies 2 ·
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Undergrad Two stationary values for an action
  • Happiness
  • · Replies 2 ·
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Undergrad Lagrangian - surface of sphere
  • rolotomassi
  • · Replies 13 ·
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Graduate Andrei Lebed, equivalence principle
  • bcrowell
  • · Replies 42 ·
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Graduate Dark Matter as higher-dimensional gravity
  • Chemist@
  • · Replies 2 ·
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Graduate What are the best beginner books on supersymmetry?
  • shereen1
  • · Replies 5 ·
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Undergrad Theoretical Possibility of "Opposite" Gravitational Mass?
  • greswd
  • · Replies 2 ·
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