Beyond the Standard Models Forum

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.

Threads

Graduate Negative Absolute Temperature: Defying Gravity?

  • Tollendal
  • · Replies 5 ·
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Graduate Can primoridal black holes completely explain dark matter

  • kodama
  • · Replies 11 ·
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11

Graduate If LHC reports no SUSY by Aug 2016 data set

  • kodama
  • · Replies 10 ·
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10

Graduate Lagrange vs Hamilton: Clarifying the Distinction

  • observer1
  • · Replies 4 ·
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4

High School Does string theory provide any additional insight to quantum mechanics?

  • KarminValso1724
  • · Replies 3 ·
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3

Graduate Exceptional group and grand unified theory

  • shereen1
  • · Replies 22 ·
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22

Graduate What if black holes can violate second law of thermodynamics

  • kodama
  • · Replies 1 ·
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1

Undergrad Complex Exponential solutions in time invariant systems

  • Dagorodir
  • · Replies 2 ·
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2

High School Below and above the Planck Scale

  • gva
  • · Replies 1 ·
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1

Graduate Study "De Sitter Supergravity" Effectively

  • shereen1
  • · Replies 8 ·
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8

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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24

Undergrad How does Gauge fixing fix anything?

  • carllacan
  • · Replies 7 ·
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7

Graduate Relation between gravity and entropy

  • Esfand Yar Ali
  • · Replies 2 ·
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2

Graduate Do conserved quantities partition phase space into separate regions?

  • Muthumanimaran
  • · Replies 2 ·
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2

Undergrad What is the motivation for principle of stationary action

  • Frank Castle
  • · Replies 31 ·
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31

Graduate Proof for Close Packing of Congruent Identical Spheres

  • fizixfan
  • · Replies 1 ·
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1

Graduate Is Anomaly Cancellation Covered in Zweibach's Book on String Theory?

  • MathematicalPhysicist
  • · Replies 2 ·
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2

High School Does quantum gravity inside brain change perception of time

  • Sachin_Vaidya
  • · Replies 2 ·
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2

Undergrad Extensive properties as measures

  • burakumin
  • · Replies 2 ·
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2

Graduate Should time be a force with its own carrier particle like the graviton?

  • dimazayka
  • · Replies 13 ·
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13

Undergrad How do the concepts of "boundary"and"infinitesimal" interact

  • Pjpic
  • · Replies 5 ·
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5

Graduate Spin 2 theory and connection to GR

  • kdv
  • · Replies 1 ·
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1

Graduate Alternatives to String theory and loop quantum gravity

  • twistor
  • · Replies 18 ·
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18

Graduate Resonance Propulsion: Using EM Waves to Induce Movement

  • Human268
  • · Replies 7 ·
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7

Undergrad Is there a real need for a theory of everything (ToE)?

  • zdroide
  • · Replies 7 ·
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7

Graduate PhD Project Ideas on Beyond Standard Model Physics

  • Ramtin123
  • · Replies 32 ·
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32

High School Is it possible to do experiment on the Planck scale?

  • Ken Gallock
  • · Replies 6 ·
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6

Undergrad How does SU(5) explain proton-electron charge equivalence?

  • cletus
  • · Replies 2 ·
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2

Graduate Spontaneous breaking of supersymmetry

  • shereen1
  • · Replies 2 ·
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2

Graduate Unifying Forces in the Early Universe: How and Why?

  • GhostLoveScore
  • · Replies 8 ·
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8

High School Can a Universe Exist Without Space and Time?

  • KarminValso1724
  • · Replies 8 ·
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8

Graduate Formulating Supergravity Under De Sitter Group: A Comprehensive Reference

  • shereen1
  • · Replies 10 ·
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10

Graduate Koide, neutrinos, and phenomenology

  • mitchell porter
  • · Replies 6 ·
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6

Graduate Thoughts on Quantum Holonomy Theory?

  • kodama
  • · Replies 20 ·
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20

Graduate What is the Effect of a Lorentz Force on a Pendulum's Gyroscopic Stabilization?

  • wrobel
  • · Replies 10 ·
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10

Graduate From ##D3-Brane## to ##AdS_5-Schwarzschild##

  • ShayanJ
  • · Replies 1 ·
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1

Undergrad Could the speed of light just be "terminal velocity"?

  • ShadesAtNight
  • · Replies 8 ·
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8

Graduate Time integral of worldsheet current

  • ShayanJ
  • · Replies 6 ·
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6

Graduate Invariance of Wess Zumino Action under SUSY

  • fa2209
  • · Replies 2 ·
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2

Graduate What would happen if only gravitons existed?

  • twistor
  • · Replies 2 ·
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2

High School Gravity Thought Problem: Theoretical System of Electron and Positron"

  • Jim Lundquist
  • · Replies 5 ·
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5

Graduate Lagrangian of a monopole (Einstein notation is used)

  • IanBerkman
  • · Replies 2 ·
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2

Graduate Symplectic Majorana Spinors in 5 Dimension

  • Francisca Ramirez
  • · Replies 5 ·
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5

Undergrad Symmetry in Physics: Books/Papers for Physical Theories

  • Logic Cloud
  • · Replies 1 ·
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1

Undergrad Is the Hamiltonian always the total energy?

  • alivedude
  • · Replies 2 ·
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2

Graduate Is Torsion Always Zero in Supergravity?

  • shereen1
  • · Replies 2 ·
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2

Undergrad Perfect Spheres: A Theoretical Possibility or an Impossibility?

  • kolleamm
  • · Replies 3 ·
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3

Graduate How Does the Infinite Momentum Frame Relate to Differential Forms in Mechanics?

  • Ddddx
  • · Replies 5 ·
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5

High School Hawking radiation / String Hagedorn temperature?

  • TeethWhitener
  • · Replies 7 ·
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7

Graduate Research Orthogonal Lie Group for Physics Applications

  • erbilsilik
  • · Replies 4 ·
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4

Undergrad Is it possible for pure energy to have mass?

  • ARC123
  • · Replies 6 ·
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6

Graduate Why doesn't Noether thm produce exactly the stress-energy tensor?

  • roomzeig
  • · Replies 1 ·
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1

High School Have physicists discovered supersymmetric particles at the LHC?

  • Justice Hunter
  • · Replies 2 ·
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2

High School Do strings behave like one-dimensional hoops that can collide and break?

  • Dook
  • · Replies 9 ·
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9

Graduate Variation of Lagrangian w/r to canonical momenta

  • muscaria
  • · Replies 3 ·
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3
  • Poll Poll

Graduate Do theoretical physicists use natural units with c=h=g=1?

  • MacRudi
  • · Replies 4 ·
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4

Graduate Most General form of Canonical Transformation

  • kolawoletech
  • · Replies 2 ·
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2

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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4

Graduate Cosmological constant from quantum gravity fluctuations

  • marcus
  • · Replies 8 ·
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8

Undergrad Are there global gauge transformations in typical electrodynamics potentials?

  • Rolandosmx
  • · Replies 4 ·
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4

High School String oscillations, not parallel to momentum?

  • Spinnor
  • · Replies 1 ·
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1

Undergrad Inverse Square Law and various space dimensions

  • Lapidus
  • · Replies 1 ·
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1

Graduate Loop quantum gravity and diffeomorphism group

  • A. Neumaier
  • · Replies 8 ·
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8

Undergrad Is Time Merely a Measurement of Change in Space?

  • kent davidge
  • · Replies 8 ·
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8

Undergrad What approaches did Einstein try for unified field theory?

  • superbat
  • · Replies 4 ·
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4
  • Poll Poll

Graduate Poll: First quarter 2016 MIP (most important QG papers)

  • marcus
  • · Replies 2 ·
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2

High School What kind of experiment is needed to quantize gravity?

  • Ken Gallock
  • · Replies 4 ·
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4

Graduate Can a Scalar Field Exist Without a Net Source?

  • Shubham135
  • · Replies 2 ·
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2

Graduate Atoms Of Space, Gravity and the Cosmological Constant

  • marcus
  • · Replies 1 ·
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1

Is There Really a Theory of Everything to Discover?

  • KarminValso1724
  • · Replies 1 ·
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1

Graduate What did Peter Higgs discover beyond the Higgs boson detection?

  • Peter25samaha
  • · Replies 5 ·
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5

Graduate Ali and Das, "Cosmology from quantum potential"

  • bcrowell
  • · Replies 76 ·
3
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76

High School Vibrating strings, quark strings more complicated?

  • Spinnor
  • · Replies 1 ·
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1

Undergrad General notion of coordinate change

  • Logic Cloud
  • · Replies 1 ·
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1

Undergrad What can we learn from the Carlofest speakers' list?

  • marcus
  • · Replies 7 ·
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7

Undergrad Can Matter Absorb Energy from Gravitational Waves?

  • tim9000
  • · Replies 11 ·
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11

High School How does the vibration of a quantum string translate to a "particle's" mass?

  • KarminValso1724
  • · Replies 2 ·
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2

High School I and j as subscript and superscript?

  • Physicsphysics
  • · Replies 6 ·
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6
  • Poll Poll

Graduate Poll: Fourth quarter 2015 MIP (most important QG papers)

  • marcus
  • · Replies 6 ·
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6

Undergrad Intuition for Hamilton's Principle

  • Sturk200
  • · Replies 4 ·
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4

Graduate Constructing massive N=1 SUSY Multiplets

  • DrSuage
  • · Replies 5 ·
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5

Graduate Physical Implications of the Transition from 2 M Branes to 5 M Branes

  • MacRudi
  • · Replies 5 ·
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5

High School Why wouldn't quantum gravity work this way?

  • maNoFchangE
  • · Replies 9 ·
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9

Undergrad A new blog about LQG and related

  • marcus
  • · Replies 1 ·
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1

Undergrad Why is the Gradient of Displacement Vector Parallel to \( \vec{r} - \vec{r'} \)?

  • TheCanadian
  • · Replies 3 ·
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3

Graduate Wikipedia LQG content republished without attribution in Amazon book

  • julian
  • · Replies 15 ·
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15

Undergrad Positive Mass in the Lagrangian from Landau

  • Oppie
  • · Replies 5 ·
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5

High School Is What we Know for Now Certain?

  • Bumpeh
  • · Replies 4 ·
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4

Undergrad Energy density of a 1D string?

  • James William
  • · Replies 2 ·
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2

Undergrad Euler-Lagrange equation even if the action isn't stationary?

  • Happiness
  • · Replies 3 ·
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3

Undergrad Is Loop Quantum Gravity as Popular as String Theory in Today's Physics Research?

  • BornCane
  • · Replies 2 ·
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2

Graduate Why fewer symmetries for relational degrees of freedom in fundamental physics

  • strangerep
  • · Replies 31 ·
2
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31

Undergrad Understanding Hamiltonian Conservation Laws

  • Physgeek64
  • · Replies 3 ·
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3

Graduate Info escape from BH (videos up from Nordita conference)

  • marcus
  • · Replies 1 ·
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1

Undergrad Any inflexion-point solutions to Euler-Lagrange equation?

  • Happiness
  • · Replies 1 ·
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1

Graduate D Branes and Gluon-Quark Interaction.

  • nigelscott
  • · Replies 2 ·
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2

Undergrad Two stationary values for an action

  • Happiness
  • · Replies 2 ·
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2