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 Calculating Functional Derivatives: -1≤xₒ≤1 vs -1<xₒ<1
- PBTR3
- · Replies 1 ·
High School Key differential equation topics for physics theories
- kent davidge
- · Replies 2 ·
Undergrad Wigner's Theorem That All Fields Must Be Tensors
- bhobba
- · Replies 1 ·
Undergrad Is There a Mistake in This CLQG Thesis?
- julian
- · Replies 3 ·
Graduate Can Cosmic Inflation and String Theory change fundamental laws?
- Suekdccia
- · Replies 4 ·
Undergrad Liouville equation for exact delta-function distribution
- dRic2
- · Replies 5 ·
Graduate Equation 5.45 in Elvang and Huang scattering amplitudes
- nrqed
- · Replies 5 ·
Graduate M theory dimension change and large N_c, are they related?
- arivero
- · Replies 3 ·
Undergrad Meagre cows and future searches
- arivero
- · Replies 4 ·
Graduate According to Wilczek, how does quantum mechanics arise?
- Suekdccia
- · Replies 2 ·
Undergrad Why is the Higgsino less massive than the Higgs boson?
- hyksos
- · Replies 4 ·
Undergrad Simple case of Gauss' law for gravity
- snoopies622
- · Replies 10 ·
High School Why don't photons prove tachyons exist?
- agentundercover99
- · Replies 7 ·
Undergrad Is M-theory (a) self-consistent (b) externally consistent?
- nomadreid
- · Replies 8 ·
Graduate Exceptional Quantum Geometry and Particle Physics
- jeffery_winkler
- · Replies 7 ·
Graduate QGravity, masses and CKM matrix all for free
- arivero
- · Replies 3 ·
Graduate Merging Gravity with the other forces
- VictorMedvil
- · Replies 42 ·
Graduate Graduate programs for studying string theory and loop quantum gravity
- Vahsek
- · Replies 1 ·
Graduate Is Physics Truly Scale-Dependent and How Does Decoupling Occur?
- samalkhaiat
- · Replies 1 ·
Graduate What physical systems exhibit nonseparable Hamiltonians in classical mechanics?
- Q_Goest
- · Replies 1 ·
Undergrad What percentage of physicists believe in a simulation hypothesis?
- Johnny5454
- · Replies 4 ·
Graduate Standard Model and number of fundamental forces
- s00mb
- · Replies 3 ·
Undergrad What happened to Susskind's Quantum Field Theory lectures at Stanford?
- hyksos
- · Replies 1 ·
Undergrad Laplace's equation vs Principle of Least Action?
- Newton-reborn
- · Replies 2 ·
Graduate Hubble tension and Vafa's string theory quintessence model
- mitchell porter
- · Replies 6 ·
Undergrad Claimed discovery of new force with 7.7 sigma significance
- member 342489
- · Replies 18 ·
Undergrad What does it mean to say space and time are fundamental in physics?
- Newton-reborn
- · Replies 7 ·
High School Gravitational wave emission from electrons
- HibyPrime
- · Replies 6 ·
Undergrad Are physical constants 'constant' axiomatically, or is there a theory?
- cmb
- · Replies 6 ·
Graduate Donoghue's critique of asymptotic safety
- mitchell porter
- · Replies 1 ·
High School Einstein summation notation, ambiguity?
- Hiero
- · Replies 3 ·
Undergrad Tom Banks' New Paper - Contra Eternal Inflation
- ChromaCorrect
- · Replies 4 ·
High School Twistor Theory: Evaluating Its Relevance in Modern Unification Theories
- warhammer
- · Replies 2 ·
Graduate Lagrangian to the Euler-Lagrange equation
- Trying2Learn
- · Replies 1 ·
Undergrad Problem of time in quantum field theory?
- TomServo
- · Replies 37 ·
Undergrad Are there any linear quantum gravity theories?
- Nickyv2423
- · Replies 15 ·
Undergrad Why describe gravity below the Planck length if spacetime curvature explains it
- KevinMcHugh
- · Replies 19 ·
High School Lost in Math - Sabine Hossenfelder
- BWV
- · Replies 4 ·
High School Evidence against Tegmark's Level 1 multiverse
- Quantum Alchemy
- · Replies 9 ·
Undergrad Eigenvalue Problem -- Justification
- Trying2Learn
- · Replies 11 ·
High School Manipulating quantities with natural units
- etotheipi
- · Replies 2 ·
Graduate Tan's beyond standard model theory with scalar field
- AdamS
- · Replies 3 ·
Undergrad Is Gravity Part Of The Standard Model?
- bhobba
- · Replies 30 ·
Undergrad Is SUSY still a possibility with current EDM limits and energy constraints?
- kelly0303
- · Replies 3 ·
Undergrad How to make something independent of the coordinate frame?
- glmhd
- · Replies 1 ·
High School Does d'Alembert Principle Hold Without External Forces in a Galactic Frame?
- MPavsic
- · Replies 1 ·
Undergrad Physical phenomena with observational evidence but no accepted theory
- kelly0303
- · Replies 40 ·
Graduate Neutron decay anomaly and mirror universe hypothesis
- Marilyn67
- · Replies 7 ·
High School Testing the No-Hair Theorem with GW150914
- member 656954
- · Replies 3 ·
High School Why are Boltzmann Brains considered a problem for physics?
- TheQuestionGuy14
- · Replies 1 ·
Undergrad Conflict of domain and endpoints in Noether's theorem
- Van Ladmon
- · Replies 3 ·
Undergrad The new definition of kg and the mass-energy equivalence
- FranzDiCoccio
- · Replies 4 ·
Undergrad How would touch work in a simulated universe?
- John2000
- · Replies 11 ·
Graduate Towards formulating an invariant Lagrangian
- Safinaz
- · Replies 1 ·
Graduate Could this unified theory be correct?
- carl_sebastian
- · Replies 15 ·
Graduate Does the g → 1/g transformation relate membrane theory to black hole evaporation?
- PGaccount
- · Replies 2 ·
Undergrad Condition for delta operator and total time differential to commute
- Abhishek11235
- · Replies 1 ·
Graduate Did Paul Dirac believe in multiple universes?
- Suekdccia
- · Replies 1 ·
High School How a Lagrangian can represent a theory?
- hugo_faurand
- · Replies 4 ·
High School Are open strings like world lines and closed strings like loops?
- PGaccount
- · Replies 3 ·
Graduate Infinite-dimensional symmetry in Meissner and Nicolai's gravity model
- Nik_2213
- · Replies 4 ·
Graduate Liouville's theorem and time evolution of ensemble average
- Jeremy1986
- · Replies 2 ·
Graduate Would Wheeler's oscillatory universe model create different laws?
- Suekdccia
- · Replies 2 ·
Undergrad Why don't strings have a Planck mass?
- jcap
- · Replies 7 ·
Graduate How to construct a spin-3/2 theory from the ground up
- Maurice7510
- · Replies 2 ·
Undergrad Eigenvectors of the EM stress-energy tensor
- Creedence
- · Replies 2 ·
Undergrad Why use covariant and contravariant tensors in physics
- dsaun777
- · Replies 8 ·
Graduate How to Calculate Arc Length of a Helical Path on a Torus?
- BasicWill
- · Replies 1 ·
Graduate Is the Randall-Sundrum model background independent?
- Suekdccia
- · Replies 5 ·
Undergrad Does vacuum pressure depend only on impurities in Torricelli's barometer?
- hubajs
- · Replies 18 ·
Graduate Unknown mathematical methods in Physics?
- Pi-is-3
- · Replies 5 ·
Graduate Getting structure data from a partition function?
- maajdl
- · Replies 1 ·
Graduate Is Seth Lloyd's cosmological model background independent?
- Suekdccia
- · Replies 5 ·
Undergrad 'Formulations' of Physical Theories: Overview?
- Logic Cloud
- · Replies 2 ·
Undergrad Strange formulation of Gauss' Theorem
- Ssnow
- · Replies 3 ·
High School Strong nuclei force and extra dimensions
- GTOM
- · Replies 1 ·
Graduate Developments to unify quantum theory with General Relativity?
- mathman
- · Replies 7 ·
Graduate Geometry of Classical Physics in terms of Gauge Theory geometry?
- jordi
- · Replies 2 ·
Undergrad What multiverse model is this author referring to?
- Suekdccia
- · Replies 7 ·
High School Energy as a non relativistic scalar and Galilean invariance
- roineust
- · Replies 7 ·
Undergrad Is spacetime emergent - and in which theories?
- S Beck
- · Replies 48 ·
Undergrad Are all Cellular Automata models of universes?
- Suekdccia
- · Replies 11 ·
High School Is string theory dead or still valid
- potato123
- · Replies 55 ·
Graduate Deriving Euler equations with Lagrange multiplier from equation 6.67
- sams
- · Replies 1 ·
Graduate Which is the quantized variable in quantum gravity?
- jordi
- · Replies 1 ·
Graduate Were there any valid classical unified field theories ?
- Rohan
- · Replies 4 ·
Graduate Hints for lepton flavor violation in B-hadron decays
- Dedu
- · Replies 1 ·
Undergrad Is Time More Fundamental Than Space According to Smolin's Theories?
- jlcd
- · Replies 14 ·
Graduate How does this study affect the holographic principle?
- Suekdccia
- · Replies 1 ·
Undergrad Electrostatic interaction in the Simulation Hypothesis
- Philipsmett
- · Replies 6 ·
Undergrad Phase space density function and Probability density function
- shahbaznihal
- · Replies 2 ·
Undergrad Quantum gravity's influence on quantum mechanics
- A. Neumaier
- · Replies 6 ·
High School Does dark matter travel faster than light?
- DrK
- · Replies 3 ·
Undergrad Missing exponent in "Theoretical Minimum"?
- SamRoss
- · Replies 4 ·
High School How can string theory test and explain dark energy, dark matter, and black holes?
- Vamsi9955
- · Replies 7 ·
Undergrad Theories and their domains of applicability?
- hyksos
- · Replies 16 ·
Graduate Approximate solutions to Kuramoto synchronization model
- Danny Boy
- · Replies 2 ·
Graduate Tensor networks, area laws, and spin networks in LQG
- atyy
- · Replies 388 ·
Undergrad Derivative operators in Galilean transformations
- TomServo
- · Replies 5 ·
High School Are we past due to declare EM/Light/Waves its own dimension?
- pittsburgh
- · Replies 11 ·