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 What characterizes each dimension in M-theory?

  • wendten
  • · Replies 1 ·
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Graduate Is E=mc² Truly Equivalent to kE=(π)r² in Energy-Mass-Volume Relationships?

  • Andy Lee
  • · Replies 7 ·
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7

Graduate Is a tabletop search for Planck scale signals feasible

  • Chronos
  • · Replies 4 ·
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4

Graduate Edwards-Anderson Hamiltonian of a Hopf link

  • omarshehab
  • · Replies 4 ·
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4

Graduate Theoretical gage factor for resistive wire strain gages?

  • Stephen Tashi
  • · Replies 0 ·
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Graduate Is Holonomy Spinfoam even more likely to succeed than Twistor Networks?

  • marcus
  • · Replies 13 ·
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13

Graduate Penrose's argument that q.g. can't remove the Big Bang singularity

  • bcrowell
  • · Replies 56 ·
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56

Graduate Help Solve a Question on Antisymmetrical Tensor Density

  • diaoye
  • · Replies 4 ·
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4

Graduate Cern: First evidence for the decay Bs → μ+μ−

  • d3mm
  • · Replies 13 ·
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13

Graduate Constructor Theory by David Deutsch

  • John86
  • · Replies 2 ·
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2

Graduate How Kane et al get the Higgs mass

  • mitchell porter
  • · Replies 1 ·
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Graduate Roger Shawyer's EmDrive Validated: Debunking or Proving it Works?

  • sanman
  • · Replies 4 ·
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4

Graduate Can Noether's Theorem Be Derived Without Induction?

  • Mektrik
  • · Replies 2 ·
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2

Graduate The "What is?" Post | Theoretical Physics

  • Waker225
  • · Replies 2 ·
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2

Graduate (gravitational) energy and entropy in an expanding universe

  • tom.stoer
  • · Replies 28 ·
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28

Graduate Geometrical GUT: Einstein's Unfinished Quest

  • Schreiberdk
  • · Replies 1 ·
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1

Graduate Bianchi's entropy result-what to ask, what to learn from it

  • marcus
  • · Replies 94 ·
4
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Graduate Invariant mass and spin in deSitter cosmology

  • tom.stoer
  • · Replies 7 ·
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7

Graduate Euler-Lagrange Equations with constraint depend on 2nd derivative?

  • birulami
  • · Replies 1 ·
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1

Graduate Understanding Poisson Brackets in Symplectic Notation

  • aaaa202
  • · Replies 1 ·
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Graduate Legendre Polynomial and Rodrigues' Formula

  • kiwakwok
  • · Replies 2 ·
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2

Graduate Weinberg-Witten Theorem and Quantum Gravity

  • stevendaryl
  • · Replies 1 ·
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1

Graduate What are the achievements of AdS/CMT ?

  • pinu
  • · Replies 16 ·
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16

Graduate Accelerated Expansion from Negative Λ

  • MTd2
  • · Replies 15 ·
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15

Graduate ’t Hooft on the Foundations of Superstring Theory

  • tom.stoer
  • · Replies 73 ·
3
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Graduate Non-integer value of dimensions?

  • jmvizanko
  • · Replies 6 ·
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6

Graduate What is the significance of N=8 supergravity in cosmology?

  • mitchell porter
  • · Replies 22 ·
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Graduate Joos's Treatment of Virtual Displacement

  • Hetware
  • · Replies 4 ·
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4

Graduate Do TOE candidates predict SM parameters?

  • Dmitry67
  • · Replies 33 ·
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Graduate Too much mass from confinement

  • bcrowell
  • · Replies 3 ·
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Graduate Do the premises of a theory have to be empirical?

  • Cinitiator
  • · Replies 5 ·
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5

Graduate Is the mass conferred by Higgs an 'effective' mass?

  • Paulibus
  • · Replies 1 ·
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Graduate Is it possible that the Strong Force and gravity are the same thing?

  • PeterLouis
  • · Replies 34 ·
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Graduate If numbers are infinite in both directions, physical contact is impossible.

  • tdahlin
  • · Replies 13 ·
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13

Graduate S. Martin's Supersymmetry primer Metric

  • TriTertButoxy
  • · Replies 3 ·
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Graduate A mathematical explanation of hysteresis?

  • lucerne
  • · Replies 3 ·
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Graduate Survey: Scale IN Variance in Physics Education

  • DiracPool
  • · Replies 3 ·
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Graduate Can Knowledge of the Future Alter Its Course?

  • x2thay
  • · Replies 3 ·
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Graduate Gauge theory, string theory, and twistor theory converge

  • mitchell porter
  • · Replies 15 ·
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Graduate Help with expansion of an expression

  • sliorbra
  • · Replies 2 ·
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2

Graduate Testing Planck-Scale Gravity with Accelerators - Very interesting Article

  • Nano-Passion
  • · Replies 4 ·
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4

Graduate The logic of the 11 dimensions in M theory

  • djsubtronic
  • · Replies 15 ·
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Graduate Quantum theory vs String theory (Who's the best?)

  • F1225
  • · Replies 12 ·
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Graduate Are String Theory Correction Terms Infintesimal under Supersymmetry Conditions?

  • FalseVaccum89
  • · Replies 6 ·
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Graduate How to define the Hamiltonian phase space for system?

  • Lengalicious
  • · Replies 4 ·
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Graduate Question regarding two books on quantum gravity

  • tom.stoer
  • · Replies 1 ·
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Graduate Feynman diagrams for Quantum Gravity

  • isidrago
  • · Replies 4 ·
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4

Graduate Beyond the photon starting point and our universe.

  • tanzanos
  • · Replies 2 ·
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Graduate A code found in equations for superstring theory huh?

  • Lightingbird
  • · Replies 2 ·
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Graduate Does the Bekenstein bound apply to gravitational waves as well?

  • Dmitry67
  • · Replies 16 ·
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Graduate Planck Length Paradox: Radius & Area

  • Shootertrex
  • · Replies 2 ·
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Graduate Unification of gravitation with other forces

  • cryptist
  • · Replies 3 ·
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Graduate Converting open strings to closed strings

  • eNathan
  • · Replies 4 ·
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4

Graduate How Does String Theory's Concept of Finite Strings Impact Quantum Field Theory?

  • soothsayer
  • · Replies 5 ·
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Graduate Is the list of particles complete and unique?

  • friend
  • · Replies 18 ·
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Graduate Analyzing a coordinate transformation

  • mjordan2nd
  • · Replies 4 ·
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Graduate Understanding Lagrange multipliers in the Lagrangian

  • mjordan2nd
  • · Replies 3 ·
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3

Graduate How to construct gamma matrices with two lower spinor indices for any dimension?

  • Osiris
  • · Replies 2 ·
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Graduate Uniqueness and origin of physics theorems

  • simoncks
  • · Replies 1 ·
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Graduate Time Travel and the space-time continuum

  • marsh8472
  • · Replies 6 ·
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6

Graduate Can Isolated Systems Under an Energy Constraint Exhibit Chaotic Behavior?

  • Gear300
  • · Replies 5 ·
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5

Graduate Interesting Claus Kiefer article: fermions decohere geometry

  • marcus
  • · Replies 0 ·
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0

Graduate The Holonomy Expansion for Hamiltonian in LQG

  • jfy4
  • · Replies 1 ·
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1

Graduate Lifting General Relativity to Observer Space

  • marcus
  • · Replies 11 ·
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11

Graduate Where and what is the ADS dictionary

  • jarod765
  • · Replies 4 ·
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4

Graduate How Does Ed Witten's Latest Paper Advance Superstring Perturbation Theory?

  • QGravity
  • · Replies 24 ·
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24

Graduate Cycles of time-Penrose says his cyclic cosmology obeys thermodynamics.

  • marcus
  • · Replies 35 ·
2
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Graduate White-Juday Warp Field Interferometer Experiment

  • sanman
  • · Replies 1 ·
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Graduate Simplifying Index Notation in Vector Calculus

  • andrien
  • · Replies 2 ·
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2

Graduate Is Susskind's derivation Euler-La Grange rigorous?

  • Hetware
  • · Replies 2 ·
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2

Undergrad Is Warp Drive a Possibility or Just Science Fiction?

  • tanzanos
  • · Replies 25 ·
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25
  • Poll Poll

Graduate Our picks for second quarter 2012 MIP (most important QG paper)

  • marcus
  • · Replies 17 ·
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17

Graduate Understanding the Adjoint Operator in Physics

  • kuan
  • · Replies 1 ·
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1

Graduate Brains for Theoretical physics

  • genius01
  • · Replies 6 ·
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6

Graduate Which systems satisfy Hamiltons principle

  • aaaa202
  • · Replies 1 ·
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1

Graduate Continuing mobius strip theory idea

  • The Seeker
  • · Replies 1 ·
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1

Graduate Chamseddine/Connes new paper on noncommutative geometry standard model

  • Monocles
  • · Replies 1 ·
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1

Graduate Does particle spin depend on background?

  • friend
  • · Replies 16 ·
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16

Graduate Tips on writing the Lagrangian

  • Yondaime5685
  • · Replies 4 ·
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4

Graduate Why Does the Integral of Legendre Polynomials Yield a Kronecker Delta?

  • Don'tKnowMuch
  • · Replies 3 ·
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3

Graduate Practical Applications of the 4th Dimension (and beyond)

  • arichards
  • · Replies 2 ·
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2

Graduate Is action-reaction contained in the Lagrangian

  • aaaa202
  • · Replies 1 ·
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1

Graduate If curl A = 0, how is it the gradient of something?

  • dreamLord
  • · Replies 17 ·
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17

Graduate Great title (and a nice looking paper)

  • Physics Monkey
  • · Replies 18 ·
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18

Graduate Experimental Search QG (Perimeter Oct. 2012)

  • marcus
  • · Replies 1 ·
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1

Graduate Critical recorded seminar talk by PF member

  • marcus
  • · Replies 0 ·
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0

Graduate What Are the Different Definitions of Action in Physics?

  • Hetware
  • · Replies 19 ·
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19

Graduate Uniqueness of canonical transformations

  • neelakash
  • · Replies 4 ·
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4

Graduate Wikipedia misinterpreting neutron experiment as evidence for Quantum Gravity?

  • Randron
  • · Replies 9 ·
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9

Graduate 2nd event horizon in black holes

  • tanzanos
  • · Replies 8 ·
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8

Graduate The Future of LQG - Oldey's Perspective

  • julian
  • · Replies 43 ·
2
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43

Graduate Tom Banks anti-landscape paper

  • mitchell porter
  • · Replies 6 ·
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6

Graduate Are foundational issues the same as BSM?

  • friend
  • · Replies 35 ·
2
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35

Graduate AdS/CFT and non-perturbative gravity in string theory

  • tom.stoer
  • · Replies 7 ·
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7

Undergrad Mass of Strings: E=MC2 & Measurable Mass?

  • john.spidey
  • · Replies 2 ·
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2

Graduate Classical physics and Group theory

  • ShayanJ
  • · Replies 1 ·
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Graduate Hossenfelder's beautiful idea resolves QG/QFT tension

  • marcus
  • · Replies 32 ·
2
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32

Graduate Is spacetime quantized or relative?

  • Guymillion
  • · Replies 23 ·
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23

Undergrad Understanding the Chain Rule in Euler-Lagrange Equations

  • Lapidus
  • · Replies 2 ·
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2