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Beyond the Standard Models Forum

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.

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Graduate Why is the Lagrangian Formulated as L = T - V?

observer1
Nov 23, 2015 · Replies 10 · Nov 29, 2015

Replies: 10

Graduate Complex numbers sometimes *Required* in Classical Physics?

LarryS
Nov 22, 2015 · Replies 21 · Nov 28, 2015

Replies: 21

Graduate Towards self dual Loop Quantum Gravity Jibril Ben Achour

kodama
Nov 27, 2015 · Replies 4 · Nov 27, 2015

Replies: 4

Graduate Does Past Exist? Conway's Game of Life & Time Travel

DuckAmuck
Nov 25, 2015 · Replies 4 · Nov 25, 2015

Replies: 4

Graduate Spacelike additional time dimensions

MacRudi
Nov 25, 2015 · Replies 1 · Nov 25, 2015

Replies: 1

Graduate Derivative of lagrangian density

kawillzocken
Nov 25, 2015 · Replies 5 · Nov 25, 2015

Replies: 5

Graduate String theory and fundamental physical constants

ftr
Nov 21, 2015 · Replies 8 · Nov 24, 2015

Replies: 8

Graduate Proving Euler Lagrange equations

Frank Einstein
Nov 24, 2015 · Replies 2 · Nov 24, 2015

Replies: 2

Graduate Example of Susy QM and its partition function

nrqed
Nov 19, 2015 · Replies 9 · Nov 24, 2015

Replies: 9

Graduate Can supersymmetry be considered a falsifiable prediction?

Smattering
Nov 22, 2015 · Replies 20 · Nov 23, 2015

Replies: 20

Graduate Question about time and/or temperature of GUT symmetry breaking

Buzz Bloom
Nov 21, 2015 · Replies 4 · Nov 22, 2015

Replies: 4

Graduate Recommended books/papers in SUSY

atboria
Nov 17, 2015 · Replies 10 · Nov 22, 2015

Replies: 10

Graduate What would walking the Klein Bottle look like to a 3D being?

AtlasSniperma
Nov 20, 2015 · Replies 8 · Nov 21, 2015

Replies: 8

Graduate Are All Gauge Groups in the Standard Model Semisimple for a Physical Reason?

fresh_42
Nov 20, 2015 · Replies 2 · Nov 21, 2015

Replies: 2

Graduate Are Physical Theories Dependent on the Extended Riemann Hypothesis?

fresh_42
Nov 19, 2015 · Replies 3 · Nov 20, 2015

Replies: 3

Graduate Our world as a typical F-theory vacuum?

mitchell porter
Nov 10, 2015 · Replies 2 · Nov 20, 2015

Replies: 2

Undergrad The Role of Theories, Models, and Laws in the Scientific Process

Frasch
Nov 18, 2015 · Replies 12 · Nov 19, 2015

Replies: 12

Undergrad Could a Pulling Airplane Propeller Be More Effective Than a Pushing One?

EnigmaStigma
Nov 17, 2015 · Replies 19 · Nov 17, 2015

Replies: 19

Graduate What is the current scientific theory for explaining the origins of gravity?

Alexander*GR*
Nov 17, 2015 · Replies 1 · Nov 17, 2015

Replies: 1

Graduate What is your guys view on Sylvester James Gates

Phypro
Oct 20, 2015 · Replies 6 · Nov 16, 2015

Replies: 6

Undergrad Godel's ITs & the Physical World: Is a ToE impossible?

greswd
Nov 16, 2015 · Replies 9 · Nov 16, 2015

Replies: 9

Graduate Are all physical quantities an equivalence relation?

Happiness
Nov 15, 2015 · Replies 1 · Nov 15, 2015

Replies: 1

Graduate How do physicists approach dimensions higher than 3rd?

ElDiplodocus
Nov 9, 2015 · Replies 4 · Nov 15, 2015

Replies: 4

Graduate Is there any mathematics to describe neutrinos with mass?

MacRudi
Nov 11, 2015 · Replies 7 · Nov 14, 2015

Replies: 7

Graduate New methods to find magnetic monopoles?

greswd
Nov 12, 2015 · Replies 17 · Nov 13, 2015

Replies: 17

Graduate Noether's theorem -- Time inversion

LagrangeEuler
Nov 12, 2015 · Replies 5 · Nov 12, 2015

Replies: 5

Graduate How do scalars determine the geometry of a manifold?

Emilie.Jung
Nov 1, 2015 · Replies 15 · Nov 12, 2015

Replies: 15

Graduate Grassmann Integral into Lagrange for scalar superfields

MacRudi
Nov 6, 2015 · Replies 5 · Nov 9, 2015

Replies: 5

Graduate Can anyone describe and explain P-branes and D-branes to me?

potato123
Nov 7, 2015 · Replies 1 · Nov 8, 2015

Replies: 1

Graduate Opinions on whether light can be mass

Dephenistrator2
Nov 8, 2015 · Replies 3 · Nov 8, 2015

Replies: 3

Graduate What would Einstein think of string theory?

jeffery_winkle
Nov 8, 2015 · Replies 2 · Nov 8, 2015

Replies: 2

Graduate How did S-Matrix theory affect the birth of String Theory?

Ted Baas
Nov 8, 2015 · Replies 2 · Nov 8, 2015

Replies: 2

Graduate What, really, is the Variational technique?

ognik
Oct 17, 2015 · Replies 2 · Nov 7, 2015

Replies: 2

Graduate Exploring the Role of Superconformality in Coupling Supergravity to Matter

Emilie.Jung
Nov 3, 2015 · Replies 21 · Nov 7, 2015

Replies: 21

Graduate Have Any Conjectures in the Random Matrix Model Been Proven or Disproven?

MathematicalPhysicist
Nov 1, 2015 · Replies 2 · Nov 6, 2015

Replies: 2

High School Do curves, circles and spheres really exist?

Cody Richeson
Nov 5, 2015 · Replies 15 · Nov 6, 2015

Replies: 15

Graduate The spin of an entity, an additional (4th/5th) dimension?

Matth.ew
Nov 5, 2015 · Replies 4 · Nov 5, 2015

Replies: 4

Graduate Can Lattice Formulations Accommodate Modern Quantum Field Theories?

Gvido_Anselmi
Nov 1, 2015 · Replies 4 · Nov 5, 2015

Replies: 4

Graduate Is a Fundamental 27D Theory Emerging from Recent Research Papers?

jeffery_winkle
Nov 3, 2015 · Replies 2 · Nov 4, 2015

Replies: 2

Graduate It is possible from the general relativity reach a ToE?

Cosmology2015
Oct 29, 2015 · Replies 13 · Oct 31, 2015

Replies: 13

Graduate Why a bosonic background in SUGRA?

Emilie.Jung
Oct 30, 2015 · Replies 6 · Oct 30, 2015

Replies: 6

Graduate Supertrace Sum Rule and Fermi Constant in Electroweak Standard Model

mitchell porter
Oct 26, 2015 · Replies 4 · Oct 30, 2015

Replies: 4

Graduate Extra Dimensions: Are They Large or Tiny?

Paul Muad'Dib
Oct 18, 2015 · Replies 18 · Oct 30, 2015

Replies: 18

Graduate Is it possible that strings are higher dimensional branes?

Nav
Jul 16, 2015 · Replies 12 · Oct 30, 2015

Replies: 12

Graduate Maximizing Information Storage: The Role of Entropy Bound in Modern Physics

ShayanJ
Oct 29, 2015 · Replies 4 · Oct 30, 2015

Replies: 4

Graduate Please explain gauge invariance un-mathmatically

kimcj
Oct 26, 2015 · Replies 5 · Oct 28, 2015

Replies: 5

Graduate What is the current status of susy and string theory?

potato123
Oct 24, 2015 · Replies 10 · Oct 27, 2015

Replies: 10

Graduate Uncovering the Mathematical Evidence Behind the Holographic Nature of Our World

thinkandmull
Oct 26, 2015 · Replies 2 · Oct 26, 2015

Replies: 2

Graduate How do we define the surroundings with the universe as a system?

amaruq
Oct 25, 2015 · Replies 1 · Oct 25, 2015

Replies: 1

Graduate Closed Analytic Form of exp(ξG): Solved!

hemza
Oct 25, 2015 · Replies 1 · Oct 25, 2015

Replies: 1

Undergrad Dimensionally impossible equation

Granger
Oct 23, 2015 · Replies 5 · Oct 24, 2015

Replies: 5

Graduate Does time translational symmetry imply H'=0 or E'=0?

davidbenari
Oct 21, 2015 · Replies 4 · Oct 22, 2015

Replies: 4

Graduate Physical meaning of field components in "angle" directions

TubbaBlubba
Oct 20, 2015 · Replies 2 · Oct 20, 2015

Replies: 2

Graduate Landmark paper by Smolin pulls together recent QG research

marcus
Oct 14, 2015 · Replies 13 · Oct 20, 2015

Replies: 13

Graduate Gravity around a near maximal black hole

dendros
Oct 15, 2015 · Replies 3 · Oct 17, 2015

Replies: 3

Graduate Equation linking superstring vibration with mass?

R. E. Nettleton
Oct 16, 2015 · Replies 1 · Oct 16, 2015

Replies: 1

Graduate Eduard Prugovecki's Quantum General Relativity

MathematicalPhysicist
Oct 16, 2015 · Replies 1 · Oct 16, 2015

Replies: 1

Graduate Please give some hints on the Complex projective group

PRB147
Oct 14, 2015 · Replies 2 · Oct 16, 2015

Replies: 2

Graduate Could photons be 2D objects in String Theory?

blah19
Oct 15, 2015 · Replies 3 · Oct 16, 2015

Replies: 3

Graduate Is Higgs Inflation Still Viable After Moriond and Planck Data?

mitchell porter
Mar 24, 2013 · Replies 35 · Oct 15, 2015

2

Replies: 35

Graduate Removing Static Black Hole Singularity without QM (paper)

MTd2
Oct 14, 2015 · Replies 2 · Oct 15, 2015

Replies: 2

Graduate Spacetime scaling invariance and quantum gravity

kodama
Oct 8, 2015 · Replies 7 · Oct 15, 2015

Replies: 7

Graduate Optomechanical test of the Schrödinger-Newton equation

marcus
Oct 14, 2015 · Replies 2 · Oct 14, 2015

Replies: 2

Graduate Quantum Gravity: Explaining the Theory Without Math

TimeRip496
Mar 2, 2015 · Replies 5 · Oct 14, 2015

Replies: 5

Graduate Why is Baryon and Lepton Number Conservation Important in Theoretical Physics?

BiGyElLoWhAt
Sep 8, 2015 · Replies 17 · Oct 13, 2015

Replies: 17

Graduate Could firewalls be real and black holes a chimera? (Hewitt)

marcus
Oct 12, 2015 · Replies 4 · Oct 13, 2015

Replies: 4

Graduate Holographic and trapped surfaces

MTd2
Sep 4, 2015 · Replies 5 · Oct 10, 2015

Replies: 5

Graduate Do Black Holes End up as Quark Stars? and quantum gravity

kodama
Aug 15, 2015 · Replies 57 · Oct 9, 2015

2

Replies: 57

Graduate Exploring the mysteries of two dust-free quasars: J0005-0006 and J0303-0019.

wolram
Oct 8, 2015 · Replies 1 · Oct 9, 2015

Replies: 1

Graduate Is a Universe Without a Multiverse Even Possible?

- Q -
Oct 8, 2015 · Replies 1 · Oct 8, 2015

Replies: 1

Graduate BMS symmetries and black hole horizons

Physics Monkey
Aug 28, 2015 · Replies 4 · Oct 8, 2015

Replies: 4

Graduate Do Scientists Believe in Tachyons?

ScientificMind
Aug 16, 2015 · Replies 52 · Oct 7, 2015

2

Replies: 52

Graduate New developments in QFT beyond the SM

Gvido_Anselmi
Sep 11, 2015 · Replies 2 · Oct 6, 2015

Replies: 2

Graduate Order or Grassmann, vector fields and tensors

marir
Oct 4, 2015 · Replies 5 · Oct 6, 2015

Replies: 5

Graduate Renormalization in Background Independent Theories

marcus
Sep 29, 2015 · Replies 1 · Oct 3, 2015

Replies: 1

Graduate What is the new Hamiltonian constraint operator for loop quantum gravity?

palmer eldtrich
Sep 30, 2015 · Replies 1 · Oct 2, 2015

Replies: 1

Graduate Non-Euclidean Physics & Straight Lines: Can They Coexist?

thinkandmull
Oct 1, 2015 · Replies 4 · Oct 1, 2015

Replies: 4

Graduate D=11 supergravity equations of motion

JorisL
Sep 29, 2015 · Replies 2 · Sep 30, 2015

Replies: 2

Graduate The implications of no gravtational waves on QG, strings, gr

kodama
Sep 28, 2015 · Replies 5 · Sep 29, 2015

Replies: 5

Graduate What *precisely* makes cause and effect asymmetric?

Whitefire
Sep 24, 2015 · Replies 8 · Sep 28, 2015

Replies: 8

Graduate Cherenkov radiation emitted from dark matter

Garlic
Sep 28, 2015 · Replies 1 · Sep 28, 2015

Replies: 1

Graduate How does M theory describe fermions?

Nav
Sep 24, 2015 · Replies 1 · Sep 26, 2015

Replies: 1

Graduate Composite Gauge Bosons: Supersymmetric SU(4) Example

mitchell porter
Sep 25, 2015 · Replies 2 · Sep 25, 2015

Replies: 2

Graduate Second law of thermodynamics and the macroscopic world

kodama
Sep 22, 2015 · Replies 17 · Sep 25, 2015

Replies: 17

Undergrad Interesting solutions to classic physics problems

Totally
Sep 20, 2015 · Replies 4 · Sep 25, 2015

Replies: 4

Graduate Relation of Noether's theorem and group theory

davidbenari
Sep 24, 2015 · Replies 3 · Sep 25, 2015

Replies: 3

Graduate Why are steps not visible in the continuum limit of the Frenkel Kontorova model?

LagrangeEuler
Sep 24, 2015 · Replies 2 · Sep 25, 2015

Replies: 2

Graduate Why don't back holes decrease in mass as you add things?

Psip
Sep 22, 2015 · Replies 3 · Sep 24, 2015

Replies: 3

Graduate Gauge/Gravity duality and evidence for superstring theory

ShayanJ
Sep 23, 2015 · Replies 2 · Sep 24, 2015

Replies: 2

Graduate Multiple-scale analysis for 2D Hamiltonian?

Random137
Sep 16, 2015 · Replies 45 · Sep 22, 2015

2

Replies: 45

Graduate Principle of least action ...some confusion

amjad-sh
Sep 19, 2015 · Replies 7 · Sep 22, 2015

Replies: 7

Graduate Is Loop Quantum Gravity a Machian theory?

quickAndLucky
Sep 16, 2015 · Replies 7 · Sep 21, 2015

Replies: 7

Graduate A new realization of quantum geometry

marcus
Jun 29, 2015 · Replies 8 · Sep 17, 2015

Replies: 8

Graduate State-Observable Duality (John Baez series)

MTd2
Nov 25, 2010 · Replies 83 · Sep 17, 2015

3

Replies: 83

Graduate Does lack of rigour cause problems in Physics?

Albertrichardp
Sep 15, 2015 · Replies 9 · Sep 16, 2015

Replies: 9

Graduate For myKK, in bounce models what drives prior contraction?

marcus
Sep 10, 2015 · Replies 10 · Sep 16, 2015

Replies: 10

Graduate Tachyons: Properties, Predictions, Detection

Eli137
Sep 15, 2015 · Replies 2 · Sep 16, 2015

Replies: 2

Graduate Can the 5 brane of M theory turn into a 1 string?

Nav
Sep 14, 2015 · Replies 3 · Sep 15, 2015

Replies: 3

Graduate Horava Lifshitz Gravity: Theory of Quantum Gravity or TOE? Viable Option?

palmer eldtrich
Sep 14, 2015 · Replies 1 · Sep 14, 2015

Replies: 1

Graduate What is the relationship between dynamical symmetry and Noether's theorem?

phoenix95
Sep 9, 2015 · Replies 9 · Sep 13, 2015

Replies: 9

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Theoretical Physics

Welcome to the Theoretical Physics forum!

Theoretical physics is a branch of physics that focuses on developing mathematical models and theoretical frameworks to explain and predict physical phenomena. Theoretical physicists strive to understand the fundamental principles that govern the universe, often delving into realms beyond immediate experimental observation.

This field involves the creation of mathematical equations and conceptual frameworks, exploring topics such as quantum mechanics, general relativity, and particle physics.

Theoretical physicists contribute to our understanding of the universe at both the smallest and largest scales, seeking to formulate elegant and comprehensive theories that describe the underlying principles of the cosmos, even if some aspects remain challenging to verify experimentally.

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