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 Hamilton-Jacobi equation in spherical coordinates
- DrClaude
- · Replies 2 ·
Graduate Given a canonical transformation, how does one find its type?
- mjordan2nd
- · Replies 1 ·
Graduate Brian Greene on The Hidden Reality
- Annihilator
- · Replies 2 ·
Graduate Liquid helium and curved piston
- Gh778
- · Replies 19 ·
Graduate Calculating derivatives of a Lagrangian density
- JPaquim
- · Replies 3 ·
Graduate Why the Multiverse? Evidence of Many Universes
- JohnLuck
- · Replies 28 ·
Graduate Hearing a drum's shape as approach to quantum gravity (Kempf)
- marcus
- · Replies 3 ·
Graduate Theory of everything and chemical bond theory
- lyborko
- · Replies 3 ·
Graduate Introducing Loop Quantum Gravity: Where to Start?
- Qubix
- · Replies 1 ·
Graduate Warm dark matter and light sterile neutrinos
- marcus
- · Replies 7 ·
Graduate How cyclic coordinates affect the dimension of the cotangent manifold
- mjordan2nd
- · Replies 3 ·
Graduate Alternatives to GUT and GUT Epoch
- kye
- · Replies 4 ·
Graduate What are the challenges with unifying gravity and quantum theory?
- Mr-T
- · Replies 29 ·
Graduate Can Physics Answer the Five Night-Time Questions of the Universe?
- marcus
- · Replies 24 ·
Graduate Integrating a physical quantity to infinity
- Visceral
- · Replies 3 ·
Undergrad Relationship Of Physics And Theorems
- BOAS
- · Replies 2 ·
Graduate Are there undiscovered forces beyond the four fundamental forces?
- Dash-IQ
- · Replies 6 ·
Graduate A Global Measure on a Gravitational System
- wildthing
- · Replies 25 ·
Graduate Are All Boundary Value Problems Eigenvalue Problems?
- The_Engineer
- · Replies 1 ·
Graduate Constants of Nature (and SM Parameters)
- kye
- · Replies 30 ·
Graduate How to model the moon's orbital decay toward Earth
- moon42
- · Replies 10 ·
Graduate Relativistic Bohmian mechanics with scalar time and quantum proper time
- atyy
- · Replies 1 ·
Graduate Why is the tangent bundle of a circle a cylinder?
- mjordan2nd
- · Replies 8 ·
Graduate Unexpected LHC Results Summary
- kye
- · Replies 14 ·
Graduate How can massless strings be the building blocks of matter?
- soothsayer
- · Replies 1 ·
Graduate Whey new physics must lie around the TeV scale ?
- Alkass
- · Replies 1 ·
Graduate Is Planck Time Not Considered in Mainstream Physics Theories?
- roineust
- · Replies 10 ·
Graduate Can Light Speed Exceed 'c' in Alternative Physics Theories?
- member 11137
- · Replies 1 ·
Graduate Possible alternatives to LQG and ST?
- kye
- · Replies 8 ·
Graduate Hilbert's 6th Problem: Progress in Physics Axiomatization
- quasar987
- · Replies 9 ·
Graduate Math Speculations Before Planck Epoch: Estimate of Time?
- Rosen
- · Replies 1 ·
Graduate Is string theory a legitimate contender for standard physics?
- PhotonEmitter
- · Replies 15 ·
Graduate Building theoretical model for phase seperation
- susdu
- · Replies 1 ·
Graduate Matter and energy short question
- Whitefire
- · Replies 14 ·
Graduate Are Fierz and Pauli Conditions Related to Massive Gravity and Higher Spin?
- sadegh4137
- · Replies 2 ·
Graduate Minkowski vacuum as superposition of spin networks? (Haggard at PI)
- marcus
- · Replies 2 ·
Graduate Unconsidered source of CP asymmetry?
- michael879
- · Replies 12 ·
Graduate The Influence of Low Energy Limits on Physical Matter, Space, and Time in Nature
- Maui
- · Replies 4 ·
Graduate Remaining problems w LQG (and cosmology application)
- marcus
- · Replies 48 ·
Graduate Calculus of Variation - Shortest path on the surface of a sphere
- cxcxcx0505
- · Replies 7 ·
Graduate Asymptotic safety incompatible with SUSY and extra dimensions
- marcus
- · Replies 1 ·
Graduate How many higgs particles are there in the universe
- ftr
- · Replies 17 ·
Graduate Strategies for solving Hamilton's equations
- jjustinn
- · Replies 2 ·
Graduate Number of Dimensions + Laws of Physics
- StevieTNZ
- · Replies 3 ·
Graduate Are There Natural Dimensionless Numbers in the Standard Model?
- jimjohnson
- · Replies 16 ·
Graduate Why Does Nature Seek Stability?
- StarsFly
- · Replies 4 ·
Undergrad Is Scope of Classical Physics decreasing?
- koolraj09
- · Replies 6 ·
Graduate Permeability/permissivity from G, hbar, c
- kye
- · Replies 1 ·
Graduate George Ellis paper on vacuum energy in unimodular gravity
- marcus
- · Replies 25 ·
Graduate Higgs mass from vacuum decay and proton decay lifetimes
- mitchell porter
- · Replies 13 ·
Graduate Is String Theory the Monopolistic Theory in Modern Physics?
- theoristo
- · Replies 85 ·
Graduate Bibliographical reference needed
- dextercioby
- · Replies 1 ·
Graduate Spin of Sfermions: 2 d.o.f, Why Complex Scalar Not Spin-1?
- kev0
- · Replies 5 ·
Graduate Relationship between Principle of Least Action and Continuity Equation
- cryptist
- · Replies 5 ·
Graduate Hamiltonian function vs. operator
- Habeebe
- · Replies 1 ·
Graduate Landau and Lifschitz derivation question
- HJ Farnsworth
- · Replies 1 ·
Graduate What happens to the second E8 in compactified E8×E8 heterotic string theory?
- Jim Kata
- · Replies 1 ·
Graduate Self-loop Fock space in spinor network formulation of loop quantum gravity
- marcus
- · Replies 7 ·
Graduate Karami's Loop cosmology talk Tuesday at ILQGS,
- marcus
- · Replies 1 ·
Graduate Why is the divergence of a curl always zero?
- terahertz
- · Replies 11 ·
Graduate Can strings vibrate without subdividing the Planck length?
- pforeman
- · Replies 6 ·
Graduate Merging the strong force with the gravitational force
- serp777
- · Replies 1 ·
Graduate Why are the two forms of the Fokker-Planck equation equivalent?
- Abigale
- · Replies 2 ·
Graduate Where Can I Learn String Theory Online with Math and Everything?
- Superposed_Cat
- · Replies 15 ·
Graduate Liouville equation - equilibrium
- lakmus
- · Replies 2 ·
Graduate Is There a Macro Version of the Planck Length?
- Cody Richeson
- · Replies 7 ·
Graduate A purely geometric path integral for gravity
- marcus
- · Replies 9 ·
Graduate Is Routh Function a non-relativistic KK theory?
- arivero
- · Replies 6 ·
Graduate Challenging Susskind's uncompressible flow in Liouville’s Theorem
- VRT
- · Replies 18 ·
Graduate Are the extra dimensions in string theory additional time dimensions?
- LinJieFu
- · Replies 2 ·
Graduate Entropy limit inside event horizons
- friend
- · Replies 2 ·
Graduate Question on Tachyon Correlator (Green Schwarz Witten)
- earth2
- · Replies 6 ·
Graduate Is the amplituhedron important for quantum physics?
- Khashishi
- · Replies 68 ·
Graduate Why does gravity need quantization at the Planck scale?
- Lapidus
- · Replies 12 ·
Graduate Liouville's Theorem and Black Holes
- anorlunda
- · Replies 8 ·
Graduate What does the Dirac delta function do and how do you evaluate it?
- Philosophaie
- · Replies 4 ·
Graduate Smallest set of fundamental physical constants?
- PeetH
- · Replies 3 ·
Graduate Superconductivity for other forces
- ilikescience94
- · Replies 5 ·
Graduate Quantum geometry school at Erlangen: what can it tell us?
- marcus
- · Replies 1 ·
Graduate Primary constraints for Hamiltonian field theories
- Bobhawke
- · Replies 8 ·
Graduate Spooky action at a distance - gravitons
- keepit
- · Replies 8 ·
Graduate Sum of forces, vacuum and gravity
- Gh778
- · Replies 5 ·
Graduate Understanding symmetry and super symmetry
- shounakbhatta
- · Replies 28 ·
Graduate String theory-connecting strings
- pforeman
- · Replies 5 ·
Graduate Variation Formulations of Physical Laws: The Correct Formulation
- JTVT
- · Replies 1 ·
Graduate Firewalls, Singularities, and the Unibabe Question
- marcus
- · Replies 42 ·
Graduate Testable quantum geometry - recent Loop rivals?
- marcus
- · Replies 9 ·
Graduate Transformation of auxiliary field
- rbwang1225
- · Replies 1 ·
Graduate Infinitesimal SUSY transformation of SYM lagrangian
- karlzr
- · Replies 7 ·
Graduate Using cosmology to detect quantum gravity effects from inflation
- marcus
- · Replies 4 ·
Graduate Invariants under group actions
- SUSY
- · Replies 3 ·
Graduate What is the meaning of the Jacobi identity for Poisson brackets?
- M. next
- · Replies 2 ·
Graduate Status of the Complex Singlet Extensions?
- arivero
- · Replies 4 ·
Graduate Whatever happened to AdS/CFT and the Quark Gluon Plasma?
- John86
- · Replies 2 ·
Graduate What is the Role of S-Matrix in String Theory?
- Korybut
- · Replies 4 ·
Graduate Is There Evidence for Quantized Space in the Universe?
- kolkmvd
- · Replies 6 ·
Graduate Chaos Attractor: +inf as Attractor?
- Shobhit Gupta
- · Replies 1 ·
Graduate Unfurling the string dimensions
- kuartus4
- · Replies 2 ·