Space-time Lego Willem Westra And Stefan Zohren. Our goal Find a theory of Gravity for very, very small scales Einstein’s theory of gravity: works well.

Slides:



Advertisements
Similar presentations
What Did Einstein Say About Light?
Advertisements

Theories of gravity in 5D brane-world scenarios
Einstein’s Universe Tuesday, February 5. Einstein – Newton smackdown! gravityspace Two different ways of thinking about gravity and space.
Are there other dimensions?. We’re used to the three dimensions we live in.
The Expanding Universe Except for a few nearby galaxies (like Andromeda), all the galaxies are seen to be moving away from us Generally, the recession.
A causal alternative to the c=0 string Jan AmbjornNiels Bohr and Univ. Utrecht Willem Westra Univ. Of Iceland Stefan Zohren Imperial College London Renate.
Or Can all laws of nature be reduced to one single system?
The causal matrix model Willem Westra and Stefan Zohren Leipzig
Cumrun Vafa June 6, 2011 University of Pennsylvania Strings and Geometry.
Adventures in String Theory Science One, April 7 th, 2011.
The causal matrix model Willem Westra and Stefan Zohren Leipzig
Chapter 13: Neutron Stars and Black Holes Einstein’s theories of Relativity Albert Einstein (Al) is best known for his two theories of relativity Special.
A causal alternative to the c=0 string Jan AmbjornNiels Bohr and Univ. Utrecht W.W.Univ. Of Iceland Stefan Zohren Imperial College London Renate LollUniv.
The Big Bang A Timeline. What do you think you know about the Big Bang? Take a couple of minutes to write down what you know, or think you know about.
Concepts from Modern Physics. Relativity We experience space in 4 dimensions (but we’re now pretty sure there’s more of them). We can’t go faster than.
Friday, October 24 Next planetarium show: Thurs, Nov. 6
Niels Martens DPhil Candidate Philosophy of Physics Oxford University Why Philosophy of Physics is Awesome!
Universe: Space-time, Matter, Energy Very little matter-energy is observable Critical matter-energy density balances expansion and gravitational collapse.
Stationary Elevator with gravity: Ball is accelerated down.
Williams Research Gravity Pharis E. Williams 19 th Natural Philosophy Alliance Albuquerque, NM July, 2012.
String Theory, Quantum Mechanics and Relativity Dr. David Berman Lecturer Department of Physics Queen Mary College University of London.
Astronomy - the study of objects and events in outer space Astronomer - scientist who studies astronomy.
Modern Physics Modern Physics Global Mechanics Global Mechanics Astrophysics Astrophysics Cosmology and The Little Bang Cosmology and The Little Bang.
„Theory of everything“ Superstring theory Barboříková Kristýna.
P Gravity The Strong Force Force Nuclear-holds protons and neutrons together together The Weak Force Nuclear Radioactive Decay Electro- Magnetism The Theory.
Physics Mrs. Coyle -Gravitational Field -Satellites -Einstein’s View of Gravity.
Gravitational Physics: Quantum Gravity and Other Theoretical Aspects Luca BombelliTibor Torma Arif Caixia Gao Brian Mazur approaches to quantum gravity:
Dimensionalities of Space-Time Yu, Hoi-Lai 16 th Oct NTHU.
E = mc 2 Yeah So What?. Outstanding Science Issues in 1900.
The Limiting Curvature hypothesis A new principle of physics Dr. Yacoub I. Anini.
Quantum mechanics unit 2
A poor man’s defense about mathematics Because if you don’t do mathematics any more I may be the last mathematician who you will ever meet and I hope I.
The Tully-Fisher Relation A relation between the rotation speed of a spiral galaxy and its luminosity The more mass a galaxy has  the brighter it is 
Announcements Exam 3 is Monday April 13. Will cover the rest of Chapter 4, all of Chapters 5, 6, 7 & 8. New Sample Questions that include Chapter 8 are.
Lecture 6: Schwarzschild’s Solution. Karl Schwarzschild Read about Einstein’s work on general relativity while serving in the German army on the Russian.
Black hole For large enough masses, as far as we know, nothing is stiff enough to stop the collapse. It continues down to a singularity: a defect in space.
Anisotropic Evolution of D-Dimensional FRW Spacetime
The Life of the Universe From Beginning to End.
The Quantum Model of the Atom. Intro to Quantum Mechanics.
In fond memory of Professor A.K. Raychaudhuri who passed away on June 18, 2005.
Comet Lemmon. AST101 Before the Beginning and other Imponderables.
Stars are formed from _______ ___ and ____ coming together due to _______. All stars begin with the _______ ______. What happens then depends on the ____.
Meeting date : 9/30 Student: Yu-Xing Cheng Professor: Yousuke Miznuo.
The Expanding Universe
Richard W. Hamming Learning to Learn The Art of Doing Science and Engineering Session 24: Quantum Mechanics Learning to Learn The Art of Doing Science.
General Relativity and Grade-9 Astronomy. 0) Gravity causes time to slow down. Everyday Einstein: The GPS and Relativity OAPT Conference May 12 – 14 McMaster.
? Eric Carlson. Einstein’s Equation Relates the shape of spacetime to the stuff that’s in it Curvature of spacetime.
Life on Earth Without the Theories of Relativity How would our lives be different on Earth if we did not have any knowledge of the theory of relativity?
Gravitational waves Gideon Koekoek January 9 th 2008 Research done at Nikhef.
Where is the Universe?. Cosmological Questions Temporal Temporal Spatial Spatial Compositional Compositional Teleological Teleological Behind physics.
Louis de Broglie, (France, ) Wave Properties of Matter (1923) -Since light waves have a particle behavior (as shown by Einstein in the Photoelectric.
ETSU Astrophysics 3415: “The Concordance Model in Cosmology: Should We Believe It?…” Martin Hendry Nov 2005 AIM:To review the current status of cosmological.
University of Oslo & Caltech
Or what was before nothing. By David N. Sutton 5/1/2012.
Why “Was Einstein Wrong?” is the Wrong Question Robert Knop Assistant Professor of Physics & Astronomy Vanderbilt University Tennessee Spring Star Party.
Derek Kan Khalid Mansour Ian Nickles
Conclusion of Last Class: Hubble’s Law (that far away galaxies recede faster) implies that the universe is expanding uniformly in all directions, like.
Quantum Model of the Atom
A New Vision of the Cosmos
The invisibles of the Universe
Deep Space and Time.
The Physics of Star Wars Dr Martin Hendry
Joseph Fourier ( ).
Neutron stars and beyond
3D Modeling & Augmented Reality S3(3) 匠印社 3D JOLLYFAB.
What were the problems?.
Stars.
Stars.
Psalm 8 Psalm 8.
Principle of Equivalence: Einstein 1907
Presentation transcript:

Space-time Lego Willem Westra And Stefan Zohren

Our goal Find a theory of Gravity for very, very small scales Einstein’s theory of gravity: works well for big things such as stars and planets Small scales: Quantum Mechanics...

The big stuff: Gravity Einstein’s theory of general relativity, 1918

Gravity: curvature of space-time Matter curves space-time Curved space-time tells matter how to move Gravity = Geometry

The small: Quantum mechanics Schrödinger’s equation, 1927

Quantum Mechanics Everything that can happen... does happen What we see is the stuff that is most probable to happen

big + small gravity + quantum curved space-time + probability

Curved space + quantum Task: count all possible curved space-times Compute the most probable ones Solution: build space time from little “Lego blocks” Count the number of ways the Lego blocks can be put together

1+1 dimensional space times One dimension of space One dimension of time Simplest Lego blocks: triangles Task: count the number of ways one can glue triangles together

Counting the triangles N NN

N N+1

An example

Splitting the universe N N+1 N

The standard equation N N+1 N

Missing a move? N N+1 N

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.