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 Role Do Conifolds Play in Superstring Theory?
- meteor
- · Replies 4 ·
Graduate What is the graviton propagator in the first order formalism?
- Max
- · Replies 1 ·
Graduate Explanation of word foliation in quantum gravity?
- exponent137
- · Replies 3 ·
Graduate What is a configuration space?
- quasar987
- · Replies 6 ·
Graduate String theory books and lectures for general interest
- Lordznon
- · Replies 9 ·
Graduate Lagrangians and conserved quantities
- quasar_4
- · Replies 1 ·
Graduate Is the lack of infinities in LQG due to quantization of volume and area?
- zetafunction
- · Replies 5 ·
Graduate Could someone explain this entropic force business to me?
- LukeD
- · Replies 8 ·
Graduate Boundary conditions on D-Branes
- wam_mi
- · Replies 1 ·
Graduate Does an object's mass depend on the observer's distance from it?
- binbots
- · Replies 12 ·
Graduate Why don't strings have a huge Planck mass?
- johne1618
- · Replies 7 ·
Graduate The Cosmic Landscape: A Review by Patrick
- Io_18
- · Replies 4 ·
Graduate What is the relationship between loop quantum gravity and relational spacetime?
- Hoku
- · Replies 6 ·
Graduate Is the GLO definition of emergence a good one? (Girelli Livine Oriti)
- marcus
- · Replies 9 ·
Graduate String Theory and Twistor Theory Combined
- Naty1
- · Replies 3 ·
Graduate In string theory, does each quark contain one string or millions?
- clm321
- · Replies 11 ·
Graduate Why didn't the initial singularity evaporate from Hawking radiation instead of expanding?
- Terry Giblin
- · Replies 23 ·
Graduate Any Laboratory Scale Test of GR's correction to Newtonian Gravity?
- petergreat
- · Replies 1 ·
Graduate How Does the Dirac Conjugation Operator Affect Majorana Neutrino Mass Terms?
- rkrsnan
- · Replies 2 ·
Graduate Implications of Verlinde entropy on string theory
- ensabah6
- · Replies 12 ·
Graduate Worldsheet ghost stress-energy tensor
- AntideSitter
- · Replies 4 ·
Graduate What Are Tri-Linear Invariants in M-Theory and 3-Algebras?
- tom.stoer
- · Replies 0 ·
Undergrad What Was Einstein Searching For in His Final Years?
- binbots
- · Replies 1 ·
Graduate Does M-theory have credible evidence for membranes?
- Benjamin113
- · Replies 13 ·
Graduate How Does Verlinde's Theory Link LQG with Newtonian Gravity?
- marcus
- · Replies 136 ·
Graduate Where did Feynman explain why the Gaussian integral equals √π?
- ibmichuco
- · Replies 6 ·
Graduate Why does M-theory add only one extra dimension and not more?
- matteo210
- · Replies 4 ·
Graduate How to determine the number of supercharges (N) for any dimension (D)?
- Osiris
- · Replies 1 ·
Graduate Verlinde, LQG, entropy and gravity as a fundamental force vs emergent
- ensabah6
- · Replies 42 ·
Graduate Kowalski path to entropic force
- marcus
- · Replies 13 ·
Graduate Is Gravity a Residual Force from Fundamental Interactions?
- RobComer
- · Replies 5 ·
Graduate Intrinsic geometry vs intrinsic information
- Fra
- · Replies 12 ·
Graduate Holographic / entropic approaches - why SU(2)?
- tom.stoer
- · Replies 38 ·
Graduate Entropic force: I don't get it
- Coin
- · Replies 8 ·
Graduate String entropy and black hole entropy
- wam_mi
- · Replies 3 ·
Graduate Units of momentum density in Nambu-Goto action
- benbenny
- · Replies 1 ·
Graduate Where can I find proofs of the Coleman-Mandula and Haag-Lopuszanski-Sohnius theorems?
- nughret
- · Replies 3 ·
Graduate Hawking radiation from cosmological horizons in accelerated expansion
- Dmitry67
- · Replies 7 ·
Graduate Understanding Groups in Type IIB Superstring Theory
- wam_mi
- · Replies 10 ·
Graduate What is the Causal Sets Approach to Quantum Gravity?
- selfAdjoint
- · Replies 3 ·
Graduate How Does Modified Gravity Theory Address Black Holes and the Universe's Origins?
- emc2cracker
- · Replies 5 ·
Graduate Remembering Matvei Bronstein: A Forgotten Physicist
- rhody
- · Replies 8 ·
Graduate Mode Expansion of Closed String with Compact Dimensions
- benbenny
- · Replies 5 ·
Graduate Wikipedia physics articles tagged as needing expert review
- petergreat
- · Replies 2 ·
Graduate What Does the Kinetic Term of the SO(10) GUT Lagrangian Look Like?
- rkrsnan
- · Replies 1 ·
Graduate What is the Hamiltonian density in field theory?
- Jerbearrrrrr
- · Replies 1 ·
Graduate Are Neutrons Mostly Empty Space Like Black Holes?
- TheTommy1
- · Replies 2 ·
Graduate What Does Tension of Our Universe Mean?
- alejandrito29
- · Replies 3 ·
Graduate What are unified theories trying to match at lower energies?
- crackjack
- · Replies 67 ·
Graduate Beta Function in String Theory
- nyc
- · Replies 7 ·
Graduate In how many directions can time move?
- Daveman20
- · Replies 3 ·
Graduate String Theory: The Need for Zero Distances
- edpell
- · Replies 8 ·
Graduate String theory and the multiverse landscape problem
- hossi
- · Replies 9 ·
Graduate Can Yershov's preons predict all particle masses within Bilson-Thompson and LQG?
- bananan
- · Replies 63 ·
Graduate Does Verlinde argument imply 3 spatial dimensions and rules out String theory?
- ensabah6
- · Replies 1 ·
Graduate Horava Gravity proven wrong, ruled out, etc.
- MTd2
- · Replies 20 ·
Graduate Can string theory include fermions without supersymmetry?
- petergreat
- · Replies 5 ·
Graduate P-branes and D-branes in type IIB string theory
- wam_mi
- · Replies 2 ·
Graduate What do BPS black holes mean and how do they differ from AdS black holes?
- wam_mi
- · Replies 1 ·
Undergrad Mathematics proof vs Physicists proof
- farleyknight
- · Replies 38 ·
Graduate The Elegant Universe (Nova Series) - Thoughts?
- khkwang
- · Replies 29 ·
Graduate Inside subspace, hyperspace and cosmic strings
- questiner
- · Replies 1 ·
Graduate Theoretical Lossless Wave Propagation
- inflector
- · Replies 6 ·
Graduate Unparticle Physics and Higgs Sector
- Tack
- · Replies 5 ·
Graduate Is There a Logical Difficulty with the Larmor Formula?
- GRDixon
- · Replies 4 ·
Graduate How generally can an AdS/CFT analogy be made?
- atyy
- · Replies 7 ·
Graduate I know the main points of string theory, but can someone tell me where
- HarryDaniels
- · Replies 29 ·
Graduate Loop quantum cosmology: simplifications, Hamiltonian constraint, and semiclassical limit
- Physics Monkey
- · Replies 19 ·
Graduate Horizon in AdS/CFT: CFT in Black Hole Spacetime
- atyy
- · Replies 4 ·
Graduate How Do Vielbeins Function in Higher-Dimensional Kaluza-Klein Theory?
- cje
- · Replies 1 ·
Graduate Does string theory say an electron is a single vibrating string?
- Pjpic
- · Replies 1 ·
Graduate String theory and 6D Yau-Calibi like protein folding?
- ensabah6
- · Replies 2 ·
Graduate D=11 and almost predictive statements.
- arivero
- · Replies 9 ·
Graduate Czes-Arivero discussion re Compton wavelength and new Smolin paper
- marcus
- · Replies 12 ·
Undergrad Attacking Einstein (and other pursuits)
- Gorn
- · Replies 3 ·
Graduate List of Compact 7 dimensional Einstein manifolds
- arivero
- · Replies 2 ·
Graduate Is There an Accepted Theory for Quantum Gravity?
- hover
- · Replies 4 ·
Graduate LQG and Cramer's Transactional Int.
- czes
- · Replies 12 ·
Graduate SUGRA theories that reproduce the standard model and have finiteness properties
- tom.stoer
- · Replies 21 ·
Graduate Could someone clarify the Multiverse theory of things
- peter09
- · Replies 2 ·
Graduate What role does torsion'' play in string theory?
- arroy_0205
- · Replies 5 ·
Graduate Could it just be 4 different dimensions not 11?
- clm321
- · Replies 10 ·
Graduate How can string theory add extra dimensions to time?
- Daglis
- · Replies 7 ·
Graduate Curled up dimensions and Lorentz invariance
- JustinLevy
- · Replies 2 ·
Graduate String theory: fundemental properties of string
- JustinLevy
- · Replies 5 ·
Graduate String Theory: Nambu-Goto or Polyakov?
- wam_mi
- · Replies 2 ·
Graduate Are Other Universes Governed by Same Fundamental Forces?
- rygar
- · Replies 20 ·
Graduate Infinite Matrix as a foundation for physics beyond the Standard Model
- shunyadragon
- · Replies 1 ·
Graduate Can someone explain the holographic principle to me?
- Mononoke
- · Replies 16 ·
Graduate Is Ilja Schmelzer's Quantum Gravity Approach a Game Changer?
- marcus
- · Replies 21 ·
Graduate How can strings have multiple windings?
- ConcreteF
- · Replies 6 ·
Graduate Special Relativity vs. Curled up spacial dimensions
- Zula110100100
- · Replies 5 ·
Graduate Explanation why our universe and nature’s laws exist.
- kvdr
- · Replies 1 ·
Graduate Solution to the Cosmological Constant, Zero-Point Energy, P.D. Mannheim
- tom.stoer
- · Replies 6 ·
Graduate Is quantum gravity viable without gravitons?
- ensabah6
- · Replies 21 ·
Graduate Why is Pdot nonzero for a charged particle Hamiltonian?
- vertices
- · Replies 5 ·
Graduate Can a time dependent field to be conservative?
- BarbaraDav
- · Replies 5 ·
Undergrad Why do gravitational and electromagnetic forces exist?
- MichaelT
- · Replies 18 ·
Graduate How to find the metric given the interval
- vertices
- · Replies 5 ·
Graduate Topics in modern theoretical physics with interesting philosophical implications
- flyzeggs
- · Replies 22 ·