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
Undergrad End point information in lagrangain variation principle
- Ron19932017
- · Replies 3 ·
Insights Frenet Equations in 2-d Which Result in the Cornu Spiral - Comment
- Charles Link
- · Replies 3 ·
Undergrad If strings are 1D, how do we perceive 3D objects?
- Dook
- · Replies 8 ·
Insights Emergence from the Superpoint - Comments
- Urs Schreiber
- · Replies 6 ·
Undergrad What is the row and column expression for the tensor product in index notation?
- Kara386
- · Replies 6 ·
Graduate Can asymptotic safety in quantum gravity be right?
- Nickyv2423
- · Replies 29 ·
Graduate Can a physics career rest on mathematical speculation without experimental tests?
- PinkyMcFiddle
- · Replies 11 ·
High School Is string theory a real theory of quantum gravity?
- Mary curie
- · Replies 2 ·
Undergrad Laplacian in integration by parts in Jackson
- Angelo Cirino
- · Replies 4 ·
Graduate Mass of the Higgs triplet in type II seesaw neutrino mechanism
- chym
- · Replies 2 ·
Undergrad Anti-gravitons effect on spacetime
- AaromTheBritt
- · Replies 15 ·
Undergrad How Does Real Analysis Justify Manipulation of Differential Elements in Physics?
- aliens123
- · Replies 2 ·
Undergrad Are Conventional Physics Models Enough to Explain Emergent Theories in Physics?
- giulio_hep
- · Replies 8 ·
Undergrad Is chiral dark matter present in other octonion-based models?
- arivero
- · Replies 1 ·
Graduate Does supersymmetry rule out asymptotic safety?
- Nickyv2423
- · Replies 3 ·
Undergrad How are physics theories discovered?
- unseeingdog
- · Replies 8 ·
Undergrad What approaches to quantum gravity are QFT's?
- Nickyv2423
- · Replies 2 ·
Undergrad How does the Holographic Principle relate to 11 dimensions?
- FallenApple
- · Replies 1 ·
Graduate Understanding Vector Mass in Particle Physics Models
- spaghetti3451
- · Replies 6 ·
Undergrad Why is stress considered a tensor?
- observer1
- · Replies 7 ·
Graduate Is asymptotic safety linear with respect to the wavefunction
- Nickyv2423
- · Replies 1 ·
Undergrad Philosophy of Science and Symmetry Question
- Zed Redstone
- · Replies 2 ·
Graduate Unifying String Theory and SuSy
- Chip
- · Replies 2 ·
Graduate Casual dynamical triangulation?
- Nickyv2423
- · Replies 1 ·
Graduate Can strings increase length without changing their energy?
- Nickyv2423
- · Replies 6 ·
Graduate What are the current hot topics in phenomenology research?
- spaghetti3451
- · Replies 5 ·
Undergrad Why does energy avoid dependence on motion in statistical physics?
- FNL
- · Replies 2 ·
Undergrad Why does the Higgs mechanism force SU(3)×U(1) on low-energy Dirac fermions?
- arivero
- · Replies 3 ·
Graduate How Does Zero Divergence and Curl Determine Uniqueness in a Manifold?
- SD das
- · Replies 2 ·
Undergrad Dark matter and acoustic peaks in the CMB
- kodama
- · Replies 4 ·
Undergrad Implications of no proton decay, simplest GUT ruled out
- kodama
- · Replies 28 ·
Graduate Loop Quantum Gravity proven wrong?
- Nickyv2423
- · Replies 7 ·
Undergrad Does the length of a string depend on it's energy?
- Nickyv2423
- · Replies 4 ·
High School Minimal information to make a universe
- wolram
- · Replies 5 ·
Graduate Is loop quantum gravity a non local or local QFT?
- Nickyv2423
- · Replies 4 ·
Undergrad The Trade-Off Between Simplicity and Intuition in Scientific Theories
- FallenApple
- · Replies 7 ·
Graduate Why are open strings vectors or scalars, or massive?
- Maurice7510
- · Replies 2 ·
Graduate Is Negative Mass Real and How Does It Affect Energy in Space?
- Kevin1998
- · Replies 1 ·
Graduate Do higher dimensional branes have wave functions?
- Nickyv2423
- · Replies 1 ·
High School Why can't we perceive higher dimensions?
- Subrata Paul
- · Replies 4 ·
Graduate Problems with quantizing branes in string theory
- haushofer
- · Replies 4 ·
Undergrad Most fundamental quantity in physics
- FallenApple
- · Replies 23 ·
Undergrad Minimizing by trisecting a function dependent on 3 parameters
- borson
- · Replies 3 ·
Undergrad Derivation of the Fokker-Planck Equation by Continuity
- fayled
- · Replies 1 ·
Graduate Recent papers on particle masses
- mitchell porter
- · Replies 2 ·
Undergrad Can string theory reproduce Hawking radiation in non-extremel black holes in 4D?
- kodama
- · Replies 4 ·
Undergrad Been out of the loop -- Progress on Unifying Equation?
- K. Doc Holiday
- · Replies 5 ·
Undergrad Where do we use infinity in physics, and why?
- FredLau
- · Replies 9 ·
Graduate Emergent Gravity and the Dark Universe
- Natalinatul
- · Replies 8 ·
Undergrad Origin Point in Chaotic Motion: Conventional vs Relative
- nomadreid
- · Replies 2 ·
High School Maldacena's entanglement-wormhole connection and spacetime
- fanieh
- · Replies 1 ·
High School Is Antimatter the Other Half of Particles in Supersymmetry?
- hsdrop
- · Replies 11 ·
Graduate The de Sitter group and minmal length?
- jakob1111
- · Replies 7 ·
Undergrad Magueijo paper -- Faster than c light vs inflation
- kodama
- · Replies 5 ·
Undergrad What would the world be like if c→∞ and h=0?
- GW150914
- · Replies 3 ·
Graduate Symplectic Condition For Canonical Transformation
- CassiopeiaA
- · Replies 3 ·
High School Determinism: how important is determinism in physics?
- Evynct
- · Replies 5 ·
Undergrad How does string theory explain leptons?
- Kevin McHugh
- · Replies 2 ·
Graduate Find S, Hamilton Principal Function from HJE
- bluejay27
- · Replies 2 ·
Graduate LUX Dark Matter Experiment Ends With No WIMPs Found
- kodama
- · Replies 5 ·
Graduate IceCube search for the 'sterile neutrino' draws a blank
- kodama
- · Replies 36 ·
Graduate Towards a dS/MERA correspondence
- mitchell porter
- · Replies 1 ·
Graduate Why use a Legendre transform instead of a simple change of variable?
- madness
- · Replies 17 ·
Undergrad How does the residue factorization form arise in BCFW recursion in QFT?
- Lapidus
- · Replies 1 ·
Graduate Near horizon limit and Hawking Temperature of the horizon
- ShayanJ
- · Replies 6 ·
Graduate Problems between Quantum Mechanics and General Relativity
- PabloAMC
- · Replies 12 ·
Graduate Erik Verlinde's new view on dark matter
- MTd2
- · Replies 35 ·
High School The dimension of time in String Theory
- Julie1703
- · Replies 2 ·
Graduate Is Time Evolution in Phase-Space Equivalent to Canonical Transformations?
- Higgsono
- · Replies 2 ·
Undergrad Do we need a new theory for the Coulomb force like general relativity for gravity?
- Mayan Fung
- · Replies 4 ·
Graduate Primordial black holes refute Higgs vacuum decay?
- mitchell porter
- · Replies 9 ·
Graduate The Inner Space of Garrett Lisi's E8 Theory
- James - STARS
- · Replies 1 ·
Graduate Antiparticles in Garrett Lisi's E8 Theory
- James - STARS
- · Replies 1 ·
Undergrad Examples of physics predictions verified by experiment
- CRichard
- · Replies 7 ·
Graduate Has the stability problem of changing entropy and time been resolved?
- MathematicalPhysicist
- · Replies 7 ·
Undergrad Liouville's Theorem: Free-Falling Particle in Gravitational Field
- Higgsono
- · Replies 1 ·
Undergrad Physical meaning of Lagrangian?
- Erland
- · Replies 30 ·
Graduate Verlinde's new entropic gravity paper
- phyzguy
- · Replies 1 ·
Undergrad Noether theorems, the Lagrangian and energy
- Dadface
- · Replies 4 ·
Undergrad About comparison to experimental reference values
- chastiell
- · Replies 5 ·
Graduate How do you KNOW the Euler (Tait) angles cover orienations
- observer1
- · Replies 6 ·
Undergrad Clear definitions of relation, function, equation, and formula
- Zacarias Nason
- · Replies 9 ·
Undergrad 5 Higgs-like bosons -- natural supersymmetry required?
- kodama
- · Replies 59 ·
Graduate What Are the Dual Low Energy Limits of Superstring Theory?
- ShayanJ
- · Replies 2 ·
Undergrad Canonical transformations and generating functions
- Frank Castle
- · Replies 6 ·
Undergrad Divergence Theorem not equaling 0
- xoxomae
- · Replies 2 ·
Undergrad Strength of gravity in asymptotic safe gravity
- kodama
- · Replies 2 ·
Undergrad 4 vector upper and lower indices
- Plaetean
- · Replies 2 ·
Undergrad Mathematical model of a phenomenon
- EdColider
- · Replies 12 ·
Graduate Casimir effect and dimensional analysis
- spaghetti3451
- · Replies 34 ·
Undergrad Supersymmetry breaking and hidden sector
- kodama
- · Replies 3 ·
Graduate How can you detect a black hole in a spin foam model?
- naima
- · Replies 10 ·
Insights Spectral Standard Model and String Compactifications - Comments
- Urs Schreiber
- · Replies 24 ·
Undergrad Numerical Calculus of Variations
- Pablo Brubeck
- · Replies 1 ·
High School Philosophical Perspective: Need for Properties in a Relativistic Field?
- bambambambambam
- · Replies 6 ·
High School What Approach Tries to Resolve the Quantum Superposition Issue in Gravity?
- bluecap
- · Replies 2 ·
High School Is Energy Galilean Invariant?
- Frank Castle
- · Replies 13 ·
Undergrad Self-Dual Gravity and self-dual Yang Mills
- kodama
- · Replies 3 ·
Insights Struggles With the Continuum - Part 1 - Comments
- john baez
- · Replies 29 ·
Insights Why Supersymmetry? Because of Deligne's theorem - Comments
- Urs Schreiber
- · Replies 44 ·