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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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Brian Greene on Explorations, new book

Feb 24, 2004 · Replies 2 · Feb 25, 2004

Replies: 2

Views: 3K

String theoryexplanation needed

Feb 22, 2004 · Replies 5 · Feb 24, 2004

Replies: 5

Views: 3K

Motion of a String: Classical Point of View

Feb 4, 2004 · Replies 10 · Feb 24, 2004

Replies: 10

Views: 4K

What is the Entropy Equation for the Universe?

Feb 24, 2004 · Replies 2 · Feb 24, 2004

Replies: 2

Views: 5K

The Bohr compactification of the Reals

Feb 16, 2004 · Replies 17 · Feb 23, 2004

Replies: 17

Views: 8K

Evidence Against Quantum Gravity

Dec 7, 2003 · Replies 42 · Feb 21, 2004

2

Replies: 42

Views: 9K

What is the Tachyon Vacuum in String Field Theory?

Feb 12, 2004 · Replies 4 · Feb 21, 2004

Replies: 4

Views: 3K

Michael Dine: Is There a String Theory Landscape

Feb 16, 2004 · Replies 8 · Feb 20, 2004

Replies: 8

Views: 4K

Big Bang Theory: Brane Collision Explained

Feb 5, 2004 · Replies 6 · Feb 20, 2004

Replies: 6

Views: 3K

Universal Shape: Is There One in Our Universe?

Feb 15, 2004 · Replies 9 · Feb 19, 2004

Replies: 9

Views: 6K

Can String Theory Provide Answers to Our Understanding of the Universe?

Feb 19, 2004 · Replies 3 · Feb 19, 2004

Replies: 3

Views: 3K

What's really going on in quantum gravity?

Feb 11, 2004 · Replies 2 · Feb 18, 2004

Replies: 2

Views: 3K

Is there a support group for spouses of physicists?

Jan 21, 2004 · Replies 70 · Feb 18, 2004

3

Replies: 70

Views: 10K

Special Thread for Jeff/Eigenguy Stuff

Feb 8, 2004 · Replies 5 · Feb 14, 2004

Replies: 5

Views: 3K

Matter-antimatter asymmetry generated by LQG

Feb 7, 2004 · Replies 2 · Feb 14, 2004

Replies: 2

Views: 3K

Non-commutative geometry in ST?

Feb 11, 2004 · Replies 2 · Feb 11, 2004

Replies: 2

Views: 3K

Can anyone show me the calculation to prove this?

Jan 12, 2004 · Replies 2 · Feb 10, 2004

Replies: 2

Views: 3K

Background Independence for the local Xray technologist

Jan 29, 2004 · Replies 15 · Feb 7, 2004

Replies: 15

Views: 3K

Thermal Decay of the Cosmological Constant into Black Holes

Jan 30, 2004 · Replies 1 · Feb 6, 2004

Replies: 1

Views: 3K

Can Non Tachyonic Bosonic Strings Resolve String Theory's Complexities?

Jan 29, 2004 · Replies 2 · Feb 5, 2004

Replies: 2

Views: 3K

Where is the relativity principle?

Feb 4, 2004 · Replies 2 · Feb 5, 2004

Replies: 2

Views: 3K

How is entropy related to quantum states in particles?

Jan 31, 2004 · Replies 9 · Feb 5, 2004

Replies: 9

Views: 5K

A New Approach in Quantum Gravity

Jan 27, 2004 · Replies 1 · Feb 3, 2004

Replies: 1

Views: 3K

How Does Minimal Superstring Theory Challenge Our Understanding of the Universe?

Jan 24, 2004 · Replies 1 · Jan 31, 2004

Replies: 1

Views: 2K

String resonances and fundamental particles

Jan 26, 2004 · Replies 2 · Jan 30, 2004

Replies: 2

Views: 3K

Quantum gravity : an oxymoron?

Jan 20, 2004 · Replies 2 · Jan 27, 2004

Replies: 2

Views: 3K

Yukawa-Hooke Equasion: Modeling Nuclear Force and String Theory

Jan 14, 2004 · Replies 2 · Jan 26, 2004

Replies: 2

Views: 2K

Smolin contributes idea about testing String

Jan 17, 2004 · Replies 8 · Jan 25, 2004

Replies: 8

Views: 3K

Universe began in a hot big bang

Jan 17, 2004 · Replies 28 · Jan 25, 2004

Replies: 28

Views: 5K

Theory of a Spontaneous Universe

Jan 22, 2004 · Replies 3 · Jan 22, 2004

Replies: 3

Views: 4K

Looking for conferences/workshops on Black Hole Thermodynamics / Holography

Jan 14, 2004 · Replies 2 · Jan 21, 2004

Replies: 2

Views: 3K

The new paper by Kim, Kim, Rim, and Yee

Jan 20, 2004 · Replies 2 · Jan 20, 2004

Replies: 2

Views: 3K

Hilbert Spaces in LQG: Is Physical Hilbert Space Infinite?

Jan 19, 2004 · Replies 4 · Jan 20, 2004

Replies: 4

Views: 3K

Understanding the Causes of Gravity

Jan 9, 2004 · Replies 2 · Jan 19, 2004

Replies: 2

Views: 2K

How Does String Theory Explain Particles?

Jan 19, 2004 · Replies 4 · Jan 19, 2004

Replies: 4

Views: 2K

SU(3) vs Directional Invariance

Jan 18, 2004 · Replies 7 · Jan 19, 2004

Replies: 7

Views: 3K

What could cosmic neutrinos tell us about gravity, if anything?

Jan 13, 2004 · Replies 4 · Jan 18, 2004

Replies: 4

Views: 3K

Evidence for descrete space and no dark matter

Jan 18, 2004 · Replies 2 · Jan 18, 2004

Replies: 2

Views: 3K

String theory finaly explained better here w/streaming video

Jan 10, 2004 · Replies 2 · Jan 18, 2004

Replies: 2

Views: 7K

Group theory in GR and quantum gravity

Jan 14, 2004 · Replies 2 · Jan 16, 2004

Replies: 2

Views: 3K

CMB Anisotropies Reveal Quantized Gravity

Jan 9, 2004 · Replies 13 · Jan 16, 2004

Replies: 13

Views: 4K

Where does Born-Infeld theory emerge from?

Jan 12, 2004 · Replies 4 · Jan 16, 2004

Replies: 4

Views: 3K

100% Efficient machines through LQG?

Jan 13, 2004 · Replies 2 · Jan 14, 2004

Replies: 2

Views: 4K

Must-Read Books for Beginners in Modern Theoretical Physics

Jan 7, 2004 · Replies 10 · Jan 11, 2004

Replies: 10

Views: 4K

How Does String Theory Explain the Universe?

Nov 28, 2003 · Replies 10 · Jan 11, 2004

Replies: 10

Views: 4K

Understanding Quantum Gravitation: Planck's Radius, String Theory, and More

Jan 3, 2004 · Replies 2 · Jan 11, 2004

Replies: 2

Views: 3K

Nature of Time and particles-caustics

Dec 30, 2003 · Replies 14 · Jan 10, 2004

Replies: 14

Views: 4K

Justification of Action Integral

Dec 29, 2003 · Replies 9 · Jan 10, 2004

Replies: 9

Views: 4K

What are the Anomalies in Schwarz-Green and Yang-Mills Equations?

Jan 3, 2004 · Replies 1 · Jan 10, 2004

Replies: 1

Views: 4K

Is Time's Symmetry Essential for Validating Physical Experiments?

Jan 8, 2004 · Replies 2 · Jan 9, 2004

Replies: 2

Views: 3K

Cyclic Model: Introduction by Steinhardt & Turok

Jan 4, 2004 · Replies 7 · Jan 8, 2004

Replies: 7

Views: 4K

How long can string theory be considered a subject of physics?

Jan 5, 2004 · Replies 13 · Jan 8, 2004

Replies: 13

Views: 3K

Help from String Theory Proponents

Dec 30, 2003 · Replies 2 · Jan 6, 2004

Replies: 2

Views: 2K

Eleven Dimensions: Hidden Names & Discovery

Dec 27, 2003 · Replies 11 · Jan 1, 2004

Replies: 11

Views: 5K

LQG & SUSY Particles: Are They Connected?

Dec 30, 2003 · Replies 3 · Dec 31, 2003

Replies: 3

Views: 3K

Paper on the Singularity Resolution in Quantum Gravity?

Dec 23, 2003 · Replies 2 · Dec 30, 2003

Replies: 2

Views: 3K

Fixed Points of Quantum Gravity

Dec 13, 2003 · Replies 16 · Dec 30, 2003

Replies: 16

Views: 5K

Information aboot the theory of hyperspace

Dec 7, 2003 · Replies 6 · Dec 29, 2003

Replies: 6

Views: 4K

How can a black hole have any force charge?

Nov 18, 2003 · Replies 6 · Dec 29, 2003

Replies: 6

Views: 8K

How does speed affect extra dimensions in string theories?

Dec 9, 2003 · Replies 2 · Dec 29, 2003

Replies: 2

Views: 3K

Edward Witten's Groundbreaking Perturbative Gauge Theory Paper

Dec 16, 2003 · Replies 11 · Dec 29, 2003

Replies: 11

Views: 5K

Susskind/Steinhardt/Smolin discussion at Edge

Dec 20, 2003 · Replies 14 · Dec 27, 2003

Replies: 14

Views: 6K

Good elementary description of LQG

Dec 22, 2003 · Replies 7 · Dec 25, 2003

Replies: 7

Views: 3K

Spin Foam Models: A Perspective on Quantum Gravity

Oct 24, 2003 · Replies 39 · Dec 24, 2003

2

Replies: 39

Views: 10K

Can Multiple Time Dimensions Exist in String Theory?

Dec 9, 2003 · Replies 4 · Dec 23, 2003

Replies: 4

Views: 5K

Is Spatial Extension the True Priority in Physics?

Dec 23, 2003 · Replies 2 · Dec 23, 2003

Replies: 2

Views: 3K

Introduction to twistor theory

Dec 12, 2003 · Replies 8 · Dec 19, 2003

Replies: 8

Views: 8K

Do Different Points Along a String Travel at Different Speeds in SpaceTime?

Dec 11, 2003 · Replies 8 · Dec 13, 2003

Replies: 8

Views: 4K

Have Exact Solutions for Infinite Cosmic Strings Been Found?

Oct 30, 2003 · Replies 2 · Dec 12, 2003

Replies: 2

Views: 3K

Is There a Minimum Time in String Theory?

Dec 11, 2003 · Replies 3 · Dec 11, 2003

Replies: 3

Views: 4K

Is there a minimum unit of time in string theory?

Nov 10, 2003 · Replies 3 · Dec 11, 2003

Replies: 3

Views: 3K

If gravity begets gravity, do gravitons emit gravitons?

Dec 6, 2003 · Replies 11 · Dec 10, 2003

Replies: 11

Views: 4K

What Are P-Branes and Their Role in String Theory?

Nov 30, 2003 · Replies 1 · Dec 7, 2003

Replies: 1

Views: 5K

Understanding the Cosmological Constant Problem

Dec 5, 2003 · Replies 9 · Dec 6, 2003

Replies: 9

Views: 4K

Path integrals and the sum of surfaces, is this general?

Nov 21, 2003 · Replies 19 · Dec 4, 2003

Replies: 19

Views: 4K

Unifying general relativity with topological field theory

Nov 19, 2003 · Replies 8 · Dec 3, 2003

Replies: 8

Views: 5K

Why is LQG a dead end but not m-theory?

Oct 16, 2003 · Replies 36 · Dec 3, 2003

2

Replies: 36

Views: 9K

Finding Physics Books on String Theories and Quantum Mechanics

Nov 30, 2003 · Replies 3 · Dec 3, 2003

Replies: 3

Views: 3K

M-theory for the layperson, part II

Nov 21, 2003 · Replies 8 · Dec 2, 2003

Replies: 8

Views: 4K

Branes and LQG: A Simplified Explanation

Dec 1, 2003 · Replies 4 · Dec 2, 2003

Replies: 4

Views: 5K

What Are the Differences Between Riemannian and Lorentzian Spin Networks?

Nov 29, 2003 · Replies 1 · Nov 29, 2003

Replies: 1

Views: 4K

November issue of Physics World is on Quantum Gravity

Nov 15, 2003 · Replies 2 · Nov 22, 2003

Replies: 2

Views: 4K

When Was String Theory First Formulated?

Nov 20, 2003 · Replies 2 · Nov 21, 2003

Replies: 2

Views: 6K

How area in LQG transforms under Lorentz boosts

Nov 7, 2003 · Replies 12 · Nov 21, 2003

Replies: 12

Views: 4K

Information about special and general relativity

Nov 21, 2003 · Replies 3 · Nov 21, 2003

Replies: 3

Views: 4K

Quantum Gravity & Theories of Everything: A New Direction?

Nov 20, 2003 · Replies 3 · Nov 21, 2003

Replies: 3

Views: 3K

New Markopolou/Smolin: Quantum Theory from Quantum Gravity

Nov 19, 2003 · Replies 4 · Nov 20, 2003

Replies: 4

Views: 6K

Why Do Scientists Think Extra Dimensions are Strings?

Nov 20, 2003 · Replies 1 · Nov 20, 2003

Replies: 1

Views: 3K

Can Loop Quantum Gravity Explain Inflation and the CMB?

Nov 4, 2003 · Replies 14 · Nov 19, 2003

Replies: 14

Views: 6K

Quantum fluctations and singularities.

Nov 18, 2003 · Replies 1 · Nov 18, 2003

Replies: 1

Views: 4K

Who is the Mysterious Man on Elegant Universe?

Nov 16, 2003 · Replies 3 · Nov 17, 2003

Replies: 3

Views: 9K

What Defines the Existence and Space of Strings in Computer Memory?

Nov 10, 2003 · Replies 1 · Nov 17, 2003

Replies: 1

Views: 4K

Discovering the Mysteries of String Theory: A Comprehensive Guide

Nov 9, 2003 · Replies 1 · Nov 17, 2003

Replies: 1

Views: 3K

Quantizing speeds with the cosmological constant

Nov 11, 2003 · Replies 15 · Nov 17, 2003

Replies: 15

Views: 4K

Can M-theory be explained in simpler terms for non-scientists?

Nov 15, 2003 · Replies 13 · Nov 16, 2003

Replies: 13

Views: 5K

String theory? sounds like a loose thread

Nov 13, 2003 · Replies 10 · Nov 15, 2003

Replies: 10

Views: 5K

Covariant Loop Gravity and Livine's Thesis

Oct 26, 2003 · Replies 32 · Nov 15, 2003

2

Replies: 32

Views: 7K

What is the Holographic Principle and how is it related to string theory?

Nov 2, 2003 · Replies 2 · Nov 14, 2003

Replies: 2

Views: 7K

Heisenberg Uncertainty Principle and String Theory

Nov 2, 2003 · Replies 2 · Nov 10, 2003

Replies: 2

Views: 4K

Do string theories need gravitational radiation as in GR?

Nov 7, 2003 · Replies 5 · Nov 9, 2003

Replies: 5

Views: 3K

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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