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 Volovik vs Witten vs Wen, etc.
- lucas_
- · Replies 71 ·
Undergrad From a false vacuum to a true vacuum?
- Suekdccia
- · Replies 2 ·
Undergrad Measuring Spacing with Shortcut Technique: Is Uniformity Achieved?
- erobz
- · Replies 3 ·
High School Why can't gravity be just a form of magnetic attraction?
- mamba76
- · Replies 6 ·
Undergrad String theory calculation of Extremal black hole entropy problem
- kodama
- · Replies 3 ·
Undergrad Coleman's varying E-M Lagrangian in problem 3.1
- Pnin
- · Replies 1 ·
Graduate An ab initio Hilbert space formulation of Lagrangian mechanics
- andresB
- · Replies 10 ·
Undergrad Alternate expressions for the uncertainty propagation
- AndersF
- · Replies 1 ·
High School Why use infinity as a reference point in electrostatics and gravity
- Nader AbdlGhani
- · Replies 13 ·
High School Does the quantum vacuum have information?
- microatx
- · Replies 20 ·
High School Energy: Abstract Concept or Entity?
- Maurice Morelock
- · Replies 36 ·
Undergrad Changing or breaking the most fundamental laws and symmetries?
- Suekdccia
- · Replies 1 ·
Undergrad Time derivative of the moment of inertia tensor
- George Keeling
- · Replies 5 ·
Undergrad Spin Foam models in Loop Quantum Gravity
- asimov42
- · Replies 5 ·
Undergrad A new concept in Low Mass Dark Matter detection
- Oldman too
- · Replies 2 ·
Undergrad A new approach to the information Paradox
- Oldman too
- · Replies 20 ·
Undergrad Why is the weakness of gravity a problem for physics?
- eiyaz
- · Replies 11 ·
Undergrad Possible universes as in Modal Logics
- MathematicalPhysicist
- · Replies 2 ·
Graduate Reference for time-invariant Kaluza-Klein metric with ω terms
- user1139
- · Replies 2 ·
Graduate Quantum hair and black hole information paradox
- atyy
- · Replies 4 ·
Graduate Is the Higgs really not as heavy as we thought?
- fresh_42
- · Replies 5 ·
Undergrad Coefficients in expansions of a vector potential
- Haorong Wu
- · Replies 6 ·
Graduate SO(3) group, Heisenberg Hamiltonian
- LagrangeEuler
- · Replies 1 ·
Graduate Gradient of higher rank tensor
- chowdhury
- · Replies 30 ·
Graduate Lagrange-D’Alembert Principle and random ODE
- wrobel
- · Replies 1 ·
Undergrad Canonical transformation vs symplectomorphism
- lriuui0x0
- · Replies 6 ·
Undergrad Between a Zeptometer and the Planck length
- PEGELLA
- · Replies 2 ·
Undergrad Building Quantum GR out of quantum rulers and quantum clocks
- cuallito
- · Replies 1 ·
Undergrad Comprehensive book or article on natural units with examples
- crhurley
- · Replies 2 ·
Undergrad What Are the Empirical Challenges Facing Quantum Gravity Theories?
- ohwilleke
- · Replies 105 ·
Undergrad Tensor products V⊗V in quantum link invariants
- lekh2003
- · Replies 4 ·
Undergrad The partial time derivative of Hamiltonian vs Lagrangian
- erore
- · Replies 2 ·
High School Current status of Horava Lifshitz gravity?
- windy miller
- · Replies 5 ·
Graduate Grant for Research in Theoretical Physics
- avpol
- · Replies 14 ·
Undergrad Do extra dimensions lead to expansion of our universe?
- Trollfaz
- · Replies 3 ·
Undergrad Lagrangian with generalized positions
- Heidi
- · Replies 32 ·
Undergrad Standard designation for generalization of Euler-Lagrange?
- nomadreid
- · Replies 5 ·
Graduate Can Membrane Field Theory Elucidate M-Theory?
- Julius H
- · Replies 9 ·
Graduate Percentage of String Theory Research in Theoretical Physics
- Maximise24
- · Replies 11 ·
Undergrad What is the swampland conjecture in string theory?
- Trollfaz
- · Replies 1 ·
Undergrad Action in Lagrangian Mechanics
- Dario56
- · Replies 5 ·
Undergrad What Shapes Can Extra Dimensions Take in String Theory?
- Trollfaz
- · Replies 2 ·
Graduate What possible experiments will falsify String Theory?
- MathematicalPhysicist
- · Replies 22 ·
Undergrad Is quantum gravity still an immensely popular field?
- MacMac
- · Replies 3 ·
Undergrad What is your opinion about Freeman Dyson's opinion on the unification?
- LCSphysicist
- · Replies 16 ·
Undergrad Dimensions of our physical world
- LightningInAJar
- · Replies 17 ·
Undergrad Can configuration space be observer independent?
- lriuui0x0
- · Replies 5 ·
Graduate What are the key contributions of Chris Isham to theoretical physics?
- George Jones
- · Replies 0 ·
High School LHCb results and MicroBooNE results
- valenumr
- · Replies 1 ·
Graduate Is Novikov's principle scientific or philosophical?
- Spathi
- · Replies 30 ·
Undergrad Confusion between vector components, basis vectors, and scalars
- e2m2a
- · Replies 4 ·
High School Is Energy Defined by Shape or Matter in General Relativity?
- LightningInAJar
- · Replies 18 ·
Undergrad Metrics and conformal transformations
- FuzzySphere
- · Replies 2 ·
Graduate Stationary Point of Variation of Action
- Trying2Learn
- · Replies 16 ·
Graduate Euler Lagrange and the Calculus of Variations
- Trying2Learn
- · Replies 2 ·
Graduate What is k-Minkowski spacetime, and is it a tool in a theory of quantum gravity?
- nomadreid
- · Replies 5 ·
Undergrad Playing with Lagrangian and I screw up
- Trying2Learn
- · Replies 2 ·
Undergrad Why is the action stationary in Hamilton's principle?
- PhilipsPhysics
- · Replies 4 ·
Undergrad Current progress in quantum gravity?
- Haorong Wu
- · Replies 5 ·
Graduate Do Gödel's incompleteness theorems imply unpredictability in physics?
- Giulio Prisco
- · Replies 19 ·
Graduate Can holography provide a complete description of a space-time?
- Heidi
- · Replies 4 ·
High School Difference between LQC and Causal Sets
- windy miller
- · Replies 3 ·
Undergrad Benefits of Lagrangian mechanics with generalised coordinates
- lriuui0x0
- · Replies 6 ·
Graduate Why does Bertrand theorem derivation use only cosine terms in Fourier expansion?
- Kashmir
- · Replies 2 ·
Undergrad String Basics question from an ABJECT ignoramus
- DonFromPgh
- · Replies 4 ·
Graduate Massless electrons stable if the Universe approaches a de Sitter Universe?
- plymale2021
- · Replies 13 ·
Graduate Charge conjugation in quantum gravity
- Joker93
- · Replies 12 ·
High School Does the Laplace operator equal the Del operator squared?
- Safinaz
- · Replies 3 ·
Undergrad Bohmian mechanics and String theory
- TheHeraclitus
- · Replies 28 ·
High School What would happen if there were no inertia?
- Sundown444
- · Replies 23 ·
Undergrad New Lepton Universality Data To Be Announced Tuesday, 18 October 2021
- ohwilleke
- · Replies 1 ·
Graduate Cohomology and fermions in supersymmetry
- kakaho345
- · Replies 3 ·
High School XENON1T and possible dark energy detection
- Melbourne Guy
- · Replies 6 ·
Graduate Quantum theory without classical time: quantum gravity and unification
- the_pulp
- · Replies 1 ·
Undergrad String theory in 4 dimensions?
- TheHeraclitus
- · Replies 2 ·
Graduate Looking for the earliest articles about Quantum Gravity
- joseywales
- · Replies 2 ·
High School What Happens If Tachyons Are Detected?
- dendros
- · Replies 28 ·
Graduate Edward Witten and the Mathematical Multiverse?
- Suekdccia
- · Replies 3 ·
Graduate Any model or theory in physics akin to "Law without law"?
- Suekdccia
- · Replies 7 ·
Undergrad Are these descriptions about extra dimensions really true?
- austinquestioner
- · Replies 17 ·
Undergrad Scalar product and generalised coordinates
- dyn
- · Replies 33 ·
Undergrad Is Supersymmetry required by String theory?
- TheHeraclitus
- · Replies 3 ·
High School Could atoms be formed from other quarks than up and down?
- elcaro
- · Replies 5 ·
Graduate Do you agree with Jeff Bezos on theoretical physics?
- Monsterboy
- · Replies 25 ·
Undergrad Ontology of Causal Dynamical Triangulation
- TheHeraclitus
- · Replies 4 ·
Undergrad What Explains the Odd Behavior of the Four Fundamental Forces?
- Zeeshan Ahmad
- · Replies 13 ·
Undergrad Multiverse: How Many Universes Could Exist?
- LightningInAJar
- · Replies 8 ·
Undergrad Phase space integral in noninteracting dipole system
- raisins
- · Replies 2 ·
Undergrad More rigorous Euler-Lagrange derivation
- romsofia
- · Replies 5 ·
Graduate Can Killing vectors be used to derive emergent gravity without assuming a metric?
- Heidi
- · Replies 10 ·
Graduate Why Does Hamilton's Principle Use L=KE-PE Instead of L=KE+PE?
- Trying2Learn
- · Replies 13 ·
Graduate New take on Tegmarks MUH --Geometric Transformation Internalization
- dtorge26
- · Replies 6 ·
Graduate What are the difficulties of the rishon model?
- Prishon
- · Replies 4 ·
Undergrad Is the Higgs field in its present form phlogiston-like?
- Prishon
- · Replies 6 ·
Undergrad Why are gravitons expected to exist when gravity is just warped spacetime?
- thegroundhog
- · Replies 22 ·
Graduate Is ADS Theory a Quantum Theory? Hawking's Bet and the ADS/CFT Equivalence
- Heidi
- · Replies 10 ·
Graduate Is Theoretical Physics Wasting Our Best Living Minds On Nonsense? Moved
- swampwiz
- · Replies 8 ·
Graduate Nobel laureates for and against string theory?
- Suekdccia
- · Replies 2 ·
Undergrad Flat arena for quantum gravity?
- gerald V
- · Replies 5 ·
High School Implication of Goedel's theorems on physics
- aman
- · Replies 8 ·