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 For myKK, in bounce models what drives prior contraction?
- marcus
- · Replies 10 ·
Graduate Tachyons: Properties, Predictions, Detection
- Eli137
- · Replies 2 ·
Graduate Can the 5 brane of M theory turn into a 1 string?
- Nav
- · Replies 3 ·
Graduate Horava Lifshitz Gravity: Theory of Quantum Gravity or TOE? Viable Option?
- palmer eldtrich
- · Replies 1 ·
Graduate What is the relationship between dynamical symmetry and Noether's theorem?
- phoenix95
- · Replies 9 ·
Graduate Finally, Garrett's model with 3 generations
- MTd2
- · Replies 67 ·
Graduate In big bounce models, what drives the contracting phase?
- mykamakiri
- · Replies 12 ·
Graduate What progress has been done on Hilbert's 6th problem?
- Anama Skout
- · Replies 5 ·
Graduate Black hole fireworks: quantum-gravity effects outside the horizon spar
- julcab12
- · Replies 67 ·
Graduate How Do Techni-Baryons Transform in SU(N_{TF}) and SU(2)_{spin} Symmetries?
- Andrea M.
- · Replies 7 ·
Graduate I've heard that mass loses energy, but how?
- 1832vin
- · Replies 3 ·
Graduate Finding Min. Potential Energy: Variation Calculus Method
- Gayle
- · Replies 6 ·
Graduate Do All Automorphisms in Physics Imply Symmetries in Equations?
- Garrulo
- · Replies 1 ·
Graduate How are physical principles generalized from specific cases?
- HermitOfThebes
- · Replies 4 ·
Graduate How to determine correct Lagrangian?
- better361
- · Replies 3 ·
Graduate Something like category theory but for physics
- Geofleur
- · Replies 7 ·
Graduate Why is stress tensor (in this derivation) symmetric?
- genxium
- · Replies 4 ·
Graduate The Bekenstein bound : Area versus Volume
- RayLouvreur
- · Replies 40 ·
Graduate Would asymptomatic safe gravity grow weaker like QCD?
- kodama
- · Replies 3 ·
Graduate Mureika-Stojkovic and beyond m
- Javaxcore
- · Replies 3 ·
Graduate R-parity and conservation of angular momentum
- Ken41
- · Replies 5 ·
Graduate Is the closed string an unknot?
- Master replies:
- · Replies 4 ·
High School Can someone explain string theory?
- Armando Valle
- · Replies 5 ·
Graduate SO(32) heterotic String theory
- Master replies:
- · Replies 6 ·
What is the BtSM Conference Schedule?
- Doc Al
- · Replies 84 ·
Graduate E8 theory according to the dark matter and energy
- DaniV
- · Replies 1 ·
Graduate Classical/QFT Vacuum Fluctuations
- HeavyWater
- · Replies 10 ·
Graduate Does T-duality on a 2-torus invert one radius or both?
- "pi"mp
- · Replies 1 ·
Insights Homotopy Lie-n Algebras in Supergravity - Comments
- Urs Schreiber
- · Replies 1 ·
Graduate An interesting new paper on f(X) gravity
- ohwilleke
- · Replies 1 ·
Graduate On a scale of 1 to String, how speculative is this?
- BiGyElLoWhAt
- · Replies 13 ·
Graduate Is orbifolding of the torus a sophisticated spherification?
- arivero
- · Replies 1 ·
Insights It Was 20 Years Ago Today -- the M-theory Conjecture - Comments
- Urs Schreiber
- · Replies 2 ·
Graduate What would be the physics of a hypothetical gluon star?
- kodama
- · Replies 9 ·
Graduate Equivalence of inertial and gravitational mass
- Paulibus
- · Replies 17 ·
Graduate Curl of Gradient of a Scalar Field
- Nishant Garg
- · Replies 6 ·
Graduate Dimensional Analysis of Planck Length
- noahcharris
- · Replies 1 ·
Graduate PI video of new QG ideas from Eyo Ita, Chopin Soo, C-Y Chou
- marcus
- · Replies 10 ·
Graduate A First Course in String Theory/Invariant Interval/Metric
- Cosmology2015
- · Replies 2 ·
Undergrad Is Matter Really made of Matter?
- Roy Smith
- · Replies 3 ·
Graduate Susskind on supersymmetry vs. cosmological constant?
- haael
- · Replies 3 ·
Graduate Understanding 2D Tensors: Covariant, Contravariant, and Physical Components
- Hrvoje Zoric
- · Replies 3 ·
Graduate In LQG, do objects attract via gravitons or curved spacetime
- kodama
- · Replies 6 ·
Graduate Lee Smolin's non-local beables and emergent quantum mechanics from gravity
- Jimster41
- · Replies 13 ·
Graduate Huygens synchronization of two clocks
- afcsimoes
- · Replies 17 ·
Graduate Z-bosons as Hawking radiation from BH
- tzimie
- · Replies 2 ·
Graduate How Does Multiverse Theory Make *Every* Universe Possible?
- noname2020x
- · Replies 47 ·
Graduate Scientific implications of latest LHC SUSY beauty quark
- kodama
- · Replies 8 ·
Graduate Is spacetime a massless spin 2 field?
- kodama
- · Replies 18 ·
Graduate Braids as a representation space of SU(5)
- kodama
- · Replies 8 ·
Graduate Why would I want to fix a gauge?
- hideelo
- · Replies 4 ·
Graduate Physical significance of Eigenvalues and Eigenvector?
- kgirish
- · Replies 4 ·
Graduate The Immirzi Parameter: Unravelling Gravity's Weakness in Vacuum LQG
- tzimie
- · Replies 8 ·
Graduate Is there a good candidate Hamiltonian for loop QG?
- kodama
- · Replies 7 ·
Graduate Dark Matter effect in Lattice Space
- czes
- · Replies 13 ·
Graduate Does quantized gravity mean quantized time?
- WhatIsGravity
- · Replies 15 ·
Graduate Is Physics a Matter of Applying or Deriving Mathematics?
- thinkandmull
- · Replies 6 ·
Graduate What are some common misconceptions about fields in physics?
- Isaac0427
- · Replies 15 ·
Graduate String theory, string dimensions?
- Nav
- · Replies 20 ·
Graduate Understanding Unified Forces in the Early Universe
- member 529879
- · Replies 2 ·
Graduate Lagrangian for Perfect Fluid Euler Equation
- Andre' Quanta
- · Replies 1 ·
Undergrad How can strings be only one dimensional?
- Nav
- · Replies 2 ·
Graduate I need intuition for Lagrangians and action
- hideelo
- · Replies 3 ·
Graduate What does the EM gauge freedom have to do with U(1)
- hideelo
- · Replies 2 ·
Graduate Space-time travel in String Theory
- alvarogz
- · Replies 4 ·
Graduate Which of these books would you recommend for LQG?
- cpsinkule
- · Replies 5 ·
Graduate Chaos (Non-Linear Dynamics) Driven Damped Pendulum
- H-S-D
- · Replies 3 ·
Graduate Lagrangian of two body problem with spin
- Vrbic
- · Replies 4 ·
Graduate Why can variation and derivative operators commute in the action principle?
- hideelo
- · Replies 2 ·
Graduate Why is it necessary to have 11 dimensions in M Theory?
- B936
- · Replies 13 ·
Undergrad Why does summing accelerations for each degree of freedom give the overall result?
- chimay
- · Replies 6 ·
Undergrad Why can magnets repel despite Earth's gravity?
- TimeRip496
- · Replies 3 ·
Graduate What is the right theory of quantum gravity?
- Lariko
- · Replies 2 ·
Graduate Information Preservation and Weather Forecasting for Black Holes
- craigi
- · Replies 4 ·
Graduate Differential Form - Notation Help
- Mistake Not...
- · Replies 3 ·
Graduate Quantum Relativity: Universe is "One" Thing?
- Benplace
- · Replies 3 ·
Graduate AdS/CFT w/out Holography and SLOT - Fluctuation Work Theorem
- Jimster41
- · Replies 23 ·
Graduate What is the role of T-duality in understanding length scales in string theory?
- "pi"mp
- · Replies 5 ·
Graduate Do Different Observers Agree on Entropy in the Unruh Effect?
- tzimie
- · Replies 38 ·
Undergrad Moon Earth binar system by math
- Vrbic
- · Replies 5 ·
Graduate Relaxion: New idea for naturalness
- mfb
- · Replies 1 ·
Graduate LQG research directions and leaders at Loops 2015
- marcus
- · Replies 38 ·
Undergrad Lagrangian and Hamiltonian. What are these in layman terms?
- avito009
- · Replies 2 ·
Is there any news to Garrett Lisi theory?
- MTd2
- · Replies 20 ·
Graduate What is the acceleration formula for particles in Loop Quantum Gravity?
- naima
- · Replies 7 ·
Graduate Product rule for vector derivative
- Bullwinckle
- · Replies 1 ·
Graduate Color Kinematics Duality and Asymptotic Safety
- erkokite
- · Replies 1 ·
Graduate Looking for an explanation/definition of a "causal diamond"
- Jimster41
- · Replies 2 ·
Graduate Bekenstein bound on cosmological scales
- tzimie
- · Replies 7 ·
Graduate Einstein Equation of State vs Gravity from Entanglement
- S.Daedalus
- · Replies 6 ·
Graduate T hooft Cellular Automata Quantum Mechanics
- twistor
- · Replies 9 ·
Graduate Can String Theory's Extra Dimensions Be Larger Than We Think?
- Stanley Lee
- · Replies 5 ·
Graduate 3D Coordinate transformation and Euler Angles
- clandarkfire
- · Replies 4 ·
Graduate Background independent framework
- Topolfractal
- · Replies 9 ·
Graduate Mathematical Modelling An Object for a System
- Chrono G. Xay
- · Replies 6 ·
Graduate Hybrid HE11 mode of corrugated waveguides as source of axion
- Ricvil
- · Replies 1 ·
Undergrad How many dimentions are known, what is there or what exists?
- alteredmind
- · Replies 3 ·