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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 What are the different approaches to QG and QM without spacetime?

astroquest34@gmail.com
Nov 4, 2007 · Replies 4 · Feb 5, 2009

Replies: 4

Graduate Petr Horava's quantum Gravity ( without strings)

MTd2
Jan 26, 2009 · Replies 8 · Feb 5, 2009

Replies: 8

Graduate Free Papers Intro to 11D Supergravity: ArXiv & Google Scholar

Reedeegi
Feb 3, 2009 · Replies 1 · Feb 4, 2009

Replies: 1

Graduate Conformally inequivalent tori (for one-loop string diagrams)

nrqed
Jan 27, 2009 · Replies 4 · Feb 4, 2009

Replies: 4

Graduate Significance of non-linear terms

anuradha
Feb 4, 2009 · Replies 3 · Feb 4, 2009

Replies: 3

Graduate What Are the Fundamental Numbers Essential for the Universe's Existence?

The Lorax
Feb 3, 2009 · Replies 1 · Feb 3, 2009

Replies: 1

Graduate Question over dimensions, something that's been bothering me

KartikAddanki
Jan 26, 2009 · Replies 2 · Feb 2, 2009

Replies: 2

Graduate A request for advice on studying theoretical physics

rstaylor
Feb 1, 2009 · Replies 9 · Feb 1, 2009

Replies: 9

Graduate Susskind on black hole in collider experiment

blackfork
Jan 31, 2009 · Replies 1 · Jan 31, 2009

Replies: 1

Graduate Number of Lepton Generations in string theory

JustinLevy
Jan 27, 2009 · Replies 6 · Jan 30, 2009

Replies: 6

Graduate Advanced published papers regarding valid unification theories?

Potential
Jan 29, 2009 · Replies 3 · Jan 30, 2009

Replies: 3

Graduate Has anyone heard of Anyonic strings?

MTd2
Jan 28, 2009 · Replies 3 · Jan 30, 2009

Replies: 3

Undergrad Where Does the Gravitational Constant Come From?

NewDescartes
Jan 29, 2009 · Replies 6 · Jan 30, 2009

Replies: 6

Graduate Fooling around with Hamilton-Jacobi theory: can this be right?

pellman
Jan 28, 2009 · Replies 2 · Jan 29, 2009

Replies: 2

Graduate Simple question about a calculation in superstring theory

nrqed
Jan 25, 2009 · Replies 2 · Jan 28, 2009

Replies: 2

Undergrad Whenever energy is added to a system, the system gains mass

dav2008
Jan 27, 2009 · Replies 3 · Jan 27, 2009

Replies: 3

Graduate Strings vs Blocks: Dimensions & Oscillating Volumes

Pjpic
Jan 21, 2009 · Replies 9 · Jan 27, 2009

Replies: 9

Graduate M-Theory is that same as Superstring Field Theory?

redhedkangaro
Jan 23, 2009 · Replies 3 · Jan 26, 2009

Replies: 3

Graduate What is E8 Theory and How Does It Relate to String Theory?

SublimeGD
Nov 16, 2007 · Replies 136 · Jan 26, 2009

5

Replies: 136

Graduate Is There a Paradox in Amelino-Camelia's Doubly Special Relativity?

aceofspades
Jan 26, 2009 · Replies 3 · Jan 26, 2009

Replies: 3

Graduate Virasoro operators in bosonic String Theory

Orbb
Jan 25, 2009 · Replies 2 · Jan 26, 2009

Replies: 2

Graduate Action Definition: Integral of Lagrangian Over Time

o_neg
Jan 24, 2009 · Replies 3 · Jan 25, 2009

Replies: 3

Graduate Smolin video LQG online course

marcus
Jan 20, 2006 · Replies 126 · Jan 24, 2009

5

Replies: 126

Graduate Why can we shield some forces but not others?

Naty1
Jan 19, 2009 · Replies 13 · Jan 24, 2009

Replies: 13

Graduate Map of Bagger-Lambert papers-links, interviews

marcus
Jan 23, 2009 · Replies 1 · Jan 23, 2009

Replies: 1

Graduate Why planck scale? let me explain before kill me

luxxio
Jan 21, 2009 · Replies 3 · Jan 22, 2009

Replies: 3

Graduate More evidence for asymptotic safety (Saueressig, Machado, Benedetti)

marcus
Jan 20, 2009 · Replies 1 · Jan 20, 2009

Replies: 1

Graduate Emergent matter as form of ramification?

Jim Kata
Jan 19, 2009 · Replies 3 · Jan 20, 2009

Replies: 3

Graduate Arguments Against LQG: Summary & Analysis

jdstokes
Jan 17, 2009 · Replies 24 · Jan 19, 2009

Replies: 24

Graduate Lqg is still local lorentz invariant?

luxxio
Dec 29, 2008 · Replies 15 · Jan 19, 2009

Replies: 15

Graduate How Does String Theory Relate to Mass-Energy Equivalence?

Naty1
Jan 18, 2009 · Replies 2 · Jan 18, 2009

Replies: 2

Graduate Stringy corrections to SM propagators

jdstokes
Jan 12, 2009 · Replies 3 · Jan 18, 2009

Replies: 3

Graduate String Theory & Emergent Spacetime: Investigating a TOE Possibility

jdstokes
Jan 17, 2009 · Replies 1 · Jan 17, 2009

Replies: 1

Graduate Current state of string theory

jgens
Jan 14, 2009 · Replies 7 · Jan 17, 2009

Replies: 7

Graduate Proofs from Oriti's QG book available in PDF

marcus
Jan 13, 2009 · Replies 1 · Jan 16, 2009

Replies: 1

Undergrad Deriving Linear Wave Equation: Step-by-Step Guide

Oerg
Jan 15, 2009 · Replies 3 · Jan 15, 2009

Replies: 3

Graduate String Theory: Understanding Superstring Theory and Its Location

redhedkangaro
Jan 14, 2009 · Replies 4 · Jan 15, 2009

Replies: 4

Graduate Request to String Lovers: Classify theories by critical dimensions.

MTd2
Jan 13, 2009 · Replies 17 · Jan 14, 2009

Replies: 17

Graduate Comparing Gravity to Other Forces in Physics

waveicle
Jan 12, 2009 · Replies 2 · Jan 13, 2009

Replies: 2

Graduate How Do 1-Dimensional Strings Transform into Point Particles in Physics?

WaveJumper
Jan 11, 2009 · Replies 3 · Jan 12, 2009

Replies: 3

Graduate Martin Kober: The relation of a unified QFT of spinors to the structure of GR

Hyperreality
Dec 28, 2008 · Replies 5 · Jan 12, 2009

Replies: 5

Graduate Hyper-complex fields in Supergravity?

Professor_E
Jan 11, 2009 · Replies 2 · Jan 11, 2009

Replies: 2

Graduate Can EM Waves Enable Warp Drive Technology in Space-Time?

Tominator
Jan 4, 2009 · Replies 24 · Jan 10, 2009

Replies: 24

Graduate Extra dimensions -> power law lowering unification?

karnten07
Jan 4, 2009 · Replies 12 · Jan 10, 2009

Replies: 12

Graduate Simple example of Quaternion intuition

sh1z84
Jan 9, 2009 · Replies 2 · Jan 10, 2009

Replies: 2

Graduate New blackhole solution to Einstein eqn, no info paradox (Krzysztof Meissner)

marcus
Jan 6, 2009 · Replies 9 · Jan 9, 2009

Replies: 9

Poll

Graduate Our picks for 2008 MIP (most important QG paper)

marcus
Dec 30, 2008 · Replies 9 · Jan 8, 2009

Replies: 9

Graduate Could the quanta of gravity be something other than a spin-2 graviton?

ensabah6
Dec 3, 2007 · Replies 6 · Jan 7, 2009

Replies: 6

Graduate Second quantization in ashtekar variable

luxxio
Dec 22, 2008 · Replies 4 · Jan 7, 2009

Replies: 4

Graduate Possible Lorentz violation measured

MTd2
Jan 5, 2009 · Replies 5 · Jan 6, 2009

Replies: 5

Graduate If y've read Wilczek's book (comment on ideas of chapter 8)

marcus
Oct 3, 2008 · Replies 34 · Jan 4, 2009

2

Replies: 34

Graduate Is Gravity Considered a Dimension in Physics?

daytripper
Jan 4, 2009 · Replies 2 · Jan 4, 2009

Replies: 2

Graduate The math behind a couple of theories

hover
Jan 4, 2009 · Replies 1 · Jan 4, 2009

Replies: 1

Graduate Identifying Regular and Irregular Lattices in the Graphity Model

skippy1729
Dec 31, 2008 · Replies 5 · Jan 4, 2009

Replies: 5

Graduate Edge predictions related to QG

marcus
Jan 2, 2009 · Replies 0 · Jan 2, 2009

Replies: 0

Graduate Can Quantum Gravity Explain Inflation After the Big Bang?

friend
Jan 1, 2009 · Replies 1 · Jan 1, 2009

Replies: 1

Graduate Exercises with solutions in theoretical physics

Herbststurm
Dec 31, 2008 · Replies 1 · Jan 1, 2009

Replies: 1

Graduate Dark matter is a quantum liquid? (buzz over McElrath's paper)

marcus
Dec 27, 2008 · Replies 18 · Jan 1, 2009

Replies: 18

Graduate CMB: Is it a Background & Why Do We Need Alternatives?

starkind
Dec 27, 2008 · Replies 5 · Dec 31, 2008

Replies: 5

Graduate String Field Theory and Background Independence?

asimov42
Nov 5, 2008 · Replies 87 · Dec 31, 2008

3

Replies: 87

Graduate Low background quantum geom/grav (map and current situation)

marcus
Dec 12, 2008 · Replies 12 · Dec 30, 2008

Replies: 12

Graduate Why only three non curled up spatial dimensions?

nealh149
Dec 27, 2008 · Replies 1 · Dec 27, 2008

Replies: 1

Graduate How Does Counterfactual Computation Work?

Kea
Feb 23, 2006 · Replies 77 · Dec 27, 2008

3

Replies: 77

Graduate Explore Parallel Universes: The Universe

remix220
Dec 3, 2008 · Replies 14 · Dec 26, 2008

Replies: 14

Graduate Baratin and Freidel: a spin foam model of ordinary particle physics

john baez
Jun 16, 2006 · Replies 133 · Dec 24, 2008

5

Replies: 133

Graduate Is Quantum Gravity Revealing a Fractal Microstructure of Space-Time?

marcus
Dec 22, 2008 · Replies 12 · Dec 24, 2008

Replies: 12

Graduate Classical Hamiltonian: Energy Conservation?

KFC
Dec 23, 2008 · Replies 4 · Dec 23, 2008

Replies: 4

Graduate Fractal Space-Time: Theory and Applications

wolram
Dec 23, 2008 · Replies 1 · Dec 23, 2008

Replies: 1

Graduate What is the Hierarchy Problem & How Can it be Solved?

jdstokes
Dec 19, 2008 · Replies 4 · Dec 22, 2008

Replies: 4

Graduate Unification of guage couplings in the presence of extra dimensions

karnten07
Dec 21, 2008 · Replies 4 · Dec 22, 2008

Replies: 4

Graduate Krasnov non-metric quantum gravity

marcus
Mar 2, 2007 · Replies 6 · Dec 19, 2008

Replies: 6

Graduate A Lagrangian approach to the Barrett-Crane spin foam model-Livine Bonzom

marcus
Dec 18, 2008 · Replies 1 · Dec 19, 2008

Replies: 1

Graduate What is the significance of the factor of 2 in the differentiation on orbifolds?

jdstokes
Dec 18, 2008 · Replies 2 · Dec 19, 2008

Replies: 2

Graduate How Do Gravity and Strong Force Connect at Small Distances?

Bengt Nyman
Dec 15, 2008 · Replies 3 · Dec 17, 2008

Replies: 3

Graduate String Theory & Higgs: Explaining Spin 0

Chewy0087
Dec 17, 2008 · Replies 1 · Dec 17, 2008

Replies: 1

Graduate Is There Time in the Bulk? Understanding Brane Cosmology

Dmitry67
Dec 11, 2008 · Replies 3 · Dec 16, 2008

Replies: 3

Graduate String worldsheets and lqg two-complexes

Coin
Dec 7, 2008 · Replies 3 · Dec 16, 2008

Replies: 3

Graduate What Happens When the Inverse Kahler Metric is Singular?

BenTheMan
Dec 12, 2008 · Replies 2 · Dec 14, 2008

Replies: 2

Graduate 2-slit interference in a gravitational field

Dmitry67
Dec 14, 2008 · Replies 6 · Dec 14, 2008

Replies: 6

Graduate Metric Tensor of Earth: g11,g21,g31...g33

Jack3145
Dec 11, 2008 · Replies 9 · Dec 14, 2008

Replies: 9

Graduate Is the concept of strings still relevant in modern physics?

Herringbone
Nov 15, 2003 · Replies 76 · Dec 14, 2008

3

Replies: 76

Graduate Benedetti's insight connecting Loll and Reuter continuums

marcus
Nov 10, 2008 · Replies 20 · Dec 14, 2008

Replies: 20

Graduate Why is physical time-asymmetry vs dynamical law time-symmetry a problem?

ThomasT
Dec 8, 2008 · Replies 8 · Dec 10, 2008

Replies: 8

Graduate String Theory and Supersymmetry

atyy
Dec 5, 2008 · Replies 5 · Dec 9, 2008

Replies: 5

Graduate Weyl's take on symmetry and the continuum

Fra
Dec 6, 2008 · Replies 3 · Dec 8, 2008

Replies: 3

Graduate Nature of Time (FQXi competition & Rovelli's paper)

francesca
Oct 13, 2008 · Replies 35 · Dec 8, 2008

2

Replies: 35

Graduate Diff invariant (measurement theory and observables)

Fra
Nov 28, 2008 · Replies 21 · Dec 7, 2008

Replies: 21

Graduate Similarity transformation, im really confused

TheIsingGuy
Nov 10, 2008 · Replies 3 · Dec 6, 2008

Replies: 3

Graduate Quantum Nature of the Big bang in Simple Models (Ashtekar@Perimeter)

marcus
Dec 5, 2008 · Replies 1 · Dec 6, 2008

Replies: 1

Graduate Question on parallel multi. theories

rpcarroll
Dec 3, 2008 · Replies 4 · Dec 4, 2008

Replies: 4

Graduate Vector Laplacian in Different Coordinate Systems

Swapnil
Apr 4, 2007 · Replies 12 · Dec 2, 2008

Replies: 12

Graduate New stuff happening in Quantum Gravity

marcus
Feb 9, 2008 · Replies 67 · Dec 1, 2008

3

Replies: 67

Undergrad What are the most fundamental laws of physics?

snoopies622
Nov 28, 2008 · Replies 11 · Dec 1, 2008

Replies: 11

Graduate Three Roads to Quantum Gravity: String Theory, Loop Quantum Gravity & ?

amppatel
Nov 28, 2008 · Replies 9 · Dec 1, 2008

Replies: 9

Graduate Philosophy of Loop Quantum Gravity

atyy
Nov 30, 2008 · Replies 9 · Dec 1, 2008

Replies: 9

Graduate Group Theory for Unified Model Building

ClubDogo
Nov 22, 2008 · Replies 11 · Nov 29, 2008

Replies: 11

Graduate Quick question: Is the multiverse theorized to have an origin?

The thinker
Nov 28, 2008 · Replies 5 · Nov 29, 2008

Replies: 5

Graduate Why does Nima A-H say unlikely to tell us anything about particle physics?

marcus
Nov 25, 2008 · Replies 15 · Nov 27, 2008

Replies: 15

Graduate (UV finite)LQG @Strings 2008-Rovelli's slide #20

marcus
Nov 27, 2008 · Replies 2 · Nov 27, 2008

Replies: 2

Graduate Sad feeb needs help with magic pixy-dust stardrive math

Bailywolf
Nov 25, 2008 · Replies 2 · Nov 26, 2008

Replies: 2

sidebar

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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