Beyond the Standard Models Forum

Post thread
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 Is Isospin Conversation Required In The Standard Model?
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Exact solutions of Wheeler–DeWitt & Yamabe Construction
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Condition for Phase transition
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Which Books Focus on the Formulation of Differential Equations?
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Understanding Tensors: A Simplified Approach for Beginners
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Poisson equation with a dirac delta source.
  • · Replies 6 ·
Replies
6
Views
5K
Graduate What is the meaning of local field theory in classical field theory?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate New properties of "standard model effective field theory"
  • · Replies 7 ·
Replies
7
Views
3K
Graduate What does it mean to "minimise" an action ?
  • · Replies 6 ·
Replies
6
Views
4K
Graduate Causality of the wave equation
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Volume elements of phase space
  • · Replies 2 ·
Replies
2
Views
4K
Graduate The Role of Hamiltonian Time Dependence in Energy Conservation
  • · Replies 7 ·
Replies
7
Views
4K
Graduate Marginal stabilty in s domain
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Magnetic monopoles and Noether theorem
  • · Replies 12 ·
Replies
12
Views
5K
Graduate Is imaginary time a scientifically serious proposal?
  • · Replies 19 ·
Replies
19
Views
3K
Graduate New first order Lagrangian for General Relativity
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Has Witten announced his new geometry?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Is Quantum foam a part of string theory?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate What would it take to fully simulate a physical system?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate What is the physical significance of Poisson brackets?
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Theoretical vs Experimental Physics
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Is the Einstein–Cartan theory renormalizable?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Physics Mathematics and Analogies
  • · Replies 4 ·
Replies
4
Views
2K
Graduate What is the most *Fundamental* theory in physics?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Multi-scale entanglement renormalization ansatz Tensor network
  • · Replies 1 ·
Replies
1
Views
2K
Graduate The naturalness of the zeon length scale
  • · Replies 5 ·
Replies
5
Views
2K
Graduate NS sector and the Numberoperator
  • · Replies 5 ·
Replies
5
Views
1K
Graduate What makes phase space special?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Action integral: Just a constant?
  • · Replies 8 ·
Replies
8
Views
1K
Graduate Why can't we perceive extra dimensions?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate The 'time oriented coarse graining' hypothesis -- "Rovelli"
  • · Replies 41 ·
2
Replies
41
Views
10K
Graduate Has B-L some role in the mass matrix?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Why Don't SUSY Leptons and Quarks Exist Alongside Standard Model Bosons?
  • · Replies 9 ·
Replies
9
Views
3K
Graduate Is gravity deterministic or probabilistic in String Theory?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Does Ads/CFT correspondence apply to LQG Kodama state?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Scalar field energy density and pressure in hot universe
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Why Do String Theory and Fermions Require Different Treatments?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Before Vectors, was it Components, and Quaternions?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Unpacking the Controversial EmDrive: Explanations and Implications
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Hypothetical Shape of a Spacetime and Time Travel
  • · Replies 12 ·
Replies
12
Views
2K
Graduate Meaning of "Bundle Connection" in String Theory?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Understanding the Boundary of a Spinfoam and Spin Network in LQG Theory
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Solving Trivial SUSY Questions: Adel Bidal Introduction to SUSY
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What Is Loschmidt's Paradox and Its Implications for Quantum Mechanics?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Is a warp drive possible? How long until we develop one?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Alain homers with Ali and Slava on base : further thoughts
  • · Replies 5 ·
Replies
5
Views
1K
Graduate Supersymmetry: Theory and Experiments
  • · Replies 29 ·
Replies
29
Views
4K
Graduate In what way is M-Theory different from Loop Quantum Gravity?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Relating Behaviour of a Driven System to the Undriven Modes
  • · Replies 1 ·
Replies
1
Views
967
Graduate If Superstring theory is not a TOE what is it?
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Is there a holographic principle in loop quantum gravity?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Local measurement of the Vacuum Energy?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What Are the Essentials for Starting Conformal Field Theory Studies?
  • · Replies 3 ·
Replies
3
Views
4K
Graduate LQG is not proved to be locally lorentz invariant. (Bee)
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Constant Scalar Field: Meaning & Relationship to Surface S
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Does h-bar change in gravitational waves?
  • · Replies 18 ·
Replies
18
Views
2K
Graduate Why can the Jacobian represent transformations?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate If SUSY is found, is String Theory the expected why?
  • · Replies 8 ·
Replies
8
Views
3K
Graduate Four-Dimensional Entropy from Three-Dimensional Gravity
  • · Replies 11 ·
Replies
11
Views
2K
Graduate Smolin's Octopus: Bridging the Standard Model and LQG?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Does the Planck Unit of Time Support Julian Barbour's Theory on the End of Time?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Evidence Against String Theory? Paper
  • · Replies 22 ·
Replies
22
Views
4K
Graduate Got asked, "Why does there 'need' to be a UFT"
  • · Replies 35 ·
2
Replies
35
Views
5K
Graduate How did the Poisson brackets get derived, and from what.
  • · Replies 1 ·
Replies
1
Views
1K
Graduate How to drop terms in a Lagrangian?
  • · Replies 16 ·
Replies
16
Views
4K
Graduate What is String Theory? | Stringtheory
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Is This Theoretical Physics Book Easy to Learn?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate A Physical Situation Which Physics Rules Collapse
  • · Replies 6 ·
Replies
6
Views
1K
Graduate Is Loop Quntuam gravity plausible formulation of quantum gravity
  • · Replies 27 ·
Replies
27
Views
3K
Graduate Why Does the Lagrangian Depend on Time and Position?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Why isn't Landau credited as an author in Vol 4?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Green's function + method of images
  • · Replies 3 ·
Replies
3
Views
4K
Graduate Understanding the Euler Lagrange Equation and Its Boundary Condition
  • · Replies 4 ·
Replies
4
Views
2K
Graduate A firewall confusion related to disentangling the vacuum
  • · Replies 2 ·
Replies
2
Views
2K
Graduate How many orthogonal spins can an object have?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate How quantizable matter gravitates
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Born-Oppenheimer applied to quantum geometry
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Are Constraints Necessary in Hamiltonian Dynamics?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Lagrangian invariance, short question
  • · Replies 16 ·
Replies
16
Views
5K
Graduate String Theory Instantaneous Teleportation
  • · Replies 6 ·
Replies
6
Views
7K
Graduate Smolin: Extending dualities to trialities (deepens dynamics)
  • · Replies 52 ·
2
Replies
52
Views
8K
Graduate Lack of physical understanding of Noether's theorem
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Alternative Ways of Decreasing Entropy in CCC
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Extra Dimensions: Lorentz Covariance, String Theory, Symmetries & More
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Derivatives in 3D and Dirac Delta
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Pentagons, hexagons, quantum gravity, AdS/CFT
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Why is the Number 3 So Prevalent in our Universe?
  • · Replies 8 ·
Replies
8
Views
5K
  • Poll Poll
Graduate Combined fourth quarter MIP poll (for most important QG papers)
  • · Replies 11 ·
Replies
11
Views
3K
Graduate Bosonic Strings and their Verma modules
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Can I substitute the new coordinates in the old hamiltonian?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Do the Euler-Lagrange equations hold for a time-dependent V?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate Is the graviton the only thing to find in LQG?
  • · Replies 31 ·
2
Replies
31
Views
4K
Graduate Planck Stars and GR black and white holes
  • · Replies 4 ·
Replies
4
Views
4K
Graduate Is There an Intrinsic Weight to Entanglement in Quantum Systems?
  • · Replies 13 ·
Replies
13
Views
3K
Graduate Correspondence between particle and string vibration mode
  • · Replies 19 ·
Replies
19
Views
2K
Graduate Obtain Equation Using Hamilton's Principle
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Stress tensor from action in Landau-Ginzburg field theory
  • · Replies 5 ·
Replies
5
Views
2K
Graduate E-L equations only hold for independent variables?
  • · Replies 4 ·
Replies
4
Views
1K
Graduate Why do negative energy solutions cause issues in Padmanabhan's Gravitation?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How can I know when the Lagrange multiplier is a constant?
  • · Replies 9 ·
Replies
9
Views
3K