DOC - Cool Cosmos
... Like the tug of gravity on Earth, a black hole exerts the same kind of force on its surroundings. But with these fantastically compact and massive objects, the gravitational pull is so strong that even light can't escape. That is why the object is “black” -- it does not give off any light. It’s as i ...
... Like the tug of gravity on Earth, a black hole exerts the same kind of force on its surroundings. But with these fantastically compact and massive objects, the gravitational pull is so strong that even light can't escape. That is why the object is “black” -- it does not give off any light. It’s as i ...
F From Vibrating Strings to a Unified Theory of All Interactions
... gravity as one of the fluctuation modes of a closed string. Although it was not discovered exactly in this way, we can describe a logical path that leads to the discovery of gravity in string theory. One considers a string, similar in manyways to the vibrating strings with tension and mass that are ...
... gravity as one of the fluctuation modes of a closed string. Although it was not discovered exactly in this way, we can describe a logical path that leads to the discovery of gravity in string theory. One considers a string, similar in manyways to the vibrating strings with tension and mass that are ...
Gravity, Particle Physics and Their Unification 1 Introduction
... lie in a smaller representation of the supersymmetry algebra and the number of states in such representations does not depend on the coupling or other continuous parameters in the theory.2 Black holes with M = Q are also special from the point of view of the gravity theory. They are called extremal ...
... lie in a smaller representation of the supersymmetry algebra and the number of states in such representations does not depend on the coupling or other continuous parameters in the theory.2 Black holes with M = Q are also special from the point of view of the gravity theory. They are called extremal ...
Why I Still Like String Theory
... quantum gravity. The third one is that it would match well with TeV scale SUSY, but the LHC might have now ruled that out. Further, it predicts a multiverse of vacua in the right quantities required to explain anthropic reasoning for an unnatural fine-tuned particle theory. Key Words: string theory, ...
... quantum gravity. The third one is that it would match well with TeV scale SUSY, but the LHC might have now ruled that out. Further, it predicts a multiverse of vacua in the right quantities required to explain anthropic reasoning for an unnatural fine-tuned particle theory. Key Words: string theory, ...
Matrix model formulations of superstring theory
... Quantum Field Theory (Particles are treated as points.) ...
... Quantum Field Theory (Particles are treated as points.) ...
Black Hole Video Questions
... 1. When stars ten times bigger than the sun explode a (nova) (supernova) (hypernova) occurs. 2. Black holes form from stars that are (10) (100) (1000) times as big as the sun. 3. When these stars explode a (nova) (supernova) (hypernova) occurs. 4. (Ultraviolet) (Infrared) (Gamma) ray bursts are sign ...
... 1. When stars ten times bigger than the sun explode a (nova) (supernova) (hypernova) occurs. 2. Black holes form from stars that are (10) (100) (1000) times as big as the sun. 3. When these stars explode a (nova) (supernova) (hypernova) occurs. 4. (Ultraviolet) (Infrared) (Gamma) ray bursts are sign ...
An Inflationary Model In String Theory
... opens up new possibilities for connections between string theory, particle physics, and cosmology. •For example it is widely believed now that many gauge theories in some limits can be usefully thought of as string theories. (E.g: The Maldacena conjecture). •This means string theory might be useful ...
... opens up new possibilities for connections between string theory, particle physics, and cosmology. •For example it is widely believed now that many gauge theories in some limits can be usefully thought of as string theories. (E.g: The Maldacena conjecture). •This means string theory might be useful ...
String Theory
... • Since closed strings relate to gravity and open strings to gauge theory, this duality relates a gravitational system to open in gauge theory. • In 1997 Maldacena made this duality very concrete and began the construction of the dictionary between gravity and gauge theories. ...
... • Since closed strings relate to gravity and open strings to gauge theory, this duality relates a gravitational system to open in gauge theory. • In 1997 Maldacena made this duality very concrete and began the construction of the dictionary between gravity and gauge theories. ...
String Theory - Indico
... String theory as a tool • Using string theory, gauge theory thermodynamics (at strong coupling) are somewhat amazingly dual to a particular sort of black hole. • The thermodynamics and other properties map to properties of the plasma • This provides the best theoretical fit so far for RHIC experime ...
... String theory as a tool • Using string theory, gauge theory thermodynamics (at strong coupling) are somewhat amazingly dual to a particular sort of black hole. • The thermodynamics and other properties map to properties of the plasma • This provides the best theoretical fit so far for RHIC experime ...
LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 19. a) A uniform plane lamina in the form of a rhombus, one of whose angles is 120o is supported by two forces of magnitudes P and Q applied at the centre in the directions of the diagonals so that one side is horizontal. Show that is P>Q, then P2 = 3Q2. b) Three equal strings of no sensible weight ...
... 19. a) A uniform plane lamina in the form of a rhombus, one of whose angles is 120o is supported by two forces of magnitudes P and Q applied at the centre in the directions of the diagonals so that one side is horizontal. Show that is P>Q, then P2 = 3Q2. b) Three equal strings of no sensible weight ...
What is String Theory?
... theories in 10dim can be seem as particular certain brane backgrounds finally links all theories together: perturbative limits .. of … what? D=11 Supergravity ...
... theories in 10dim can be seem as particular certain brane backgrounds finally links all theories together: perturbative limits .. of … what? D=11 Supergravity ...
University of Groningen M-theory and gauged supergravities Roest
... exists, it must therefore be spontaneously broken, yielding sparticles of higher mass. It is strongly hoped that these will be discovered at the LHC. In addition to the development of QFT and the SM in particle physics, the previous century has also provided us with the framework to describe gravity ...
... exists, it must therefore be spontaneously broken, yielding sparticles of higher mass. It is strongly hoped that these will be discovered at the LHC. In addition to the development of QFT and the SM in particle physics, the previous century has also provided us with the framework to describe gravity ...
The Dimensions of M
... Unfortunately, the ground state energy level also includes negative-mass particles, known as tachyons. Such particles have light speed as their limiting minimum speed, thus violating causality. Tachyonic particles generally suggest an instability, or possibly even an inconsistency, in a theory. Sinc ...
... Unfortunately, the ground state energy level also includes negative-mass particles, known as tachyons. Such particles have light speed as their limiting minimum speed, thus violating causality. Tachyonic particles generally suggest an instability, or possibly even an inconsistency, in a theory. Sinc ...
Why Does Space Exist?
... quantum uncertainty + 2 dimensions of time + 26 dimensions of bosonic string theory. The 64 dimensions of quantum uncertainty somehow predict 64 different types of particles in free space — the 61 known particles of the Standard Model + graviton + inflaton + axion. We may write 3^20 = 6^10 — my gues ...
... quantum uncertainty + 2 dimensions of time + 26 dimensions of bosonic string theory. The 64 dimensions of quantum uncertainty somehow predict 64 different types of particles in free space — the 61 known particles of the Standard Model + graviton + inflaton + axion. We may write 3^20 = 6^10 — my gues ...
NMP_Paper 1_String Theory
... general relativity and quantum mechanics. General relativity focuses on the gravitational nature of massive objects such as galaxies, planets, and black holes while quantum mechanics deals with the tiniest parts of our universe: atomic and subatomic particles. Not only do the theories differ in the ...
... general relativity and quantum mechanics. General relativity focuses on the gravitational nature of massive objects such as galaxies, planets, and black holes while quantum mechanics deals with the tiniest parts of our universe: atomic and subatomic particles. Not only do the theories differ in the ...
string theory.
... Two more ingredients: • Large N (size of gauge matrices), to have enough states. ‘t Hooft (1974) showed that one gets an interesting limit if one replaced the 3 colors of QCD with a large number N. • Very strong coupling, to get interesting bound states. (Precise statement: large anomalous dimensio ...
... Two more ingredients: • Large N (size of gauge matrices), to have enough states. ‘t Hooft (1974) showed that one gets an interesting limit if one replaced the 3 colors of QCD with a large number N. • Very strong coupling, to get interesting bound states. (Precise statement: large anomalous dimensio ...
J.M. Maldacena
... We need to find the appropriate 5 dimensional geometry It should solve the equations of string theory They are a kind of extension of Einstein’s equations Very difficult so solve Consider a simpler case first. A case with more symmetry. We consider a version of QCD with more symmetries. ...
... We need to find the appropriate 5 dimensional geometry It should solve the equations of string theory They are a kind of extension of Einstein’s equations Very difficult so solve Consider a simpler case first. A case with more symmetry. We consider a version of QCD with more symmetries. ...
All forces arise from the interactions between different objects
... The duality symmetry that obscures our ability to distinguish between large and small distance scales is called T-duality, and comes about from the compactification (see reference [1]) of extra space dimensions in a ten-dimensional superstring theory. A particle has the property of momentum, whereas ...
... The duality symmetry that obscures our ability to distinguish between large and small distance scales is called T-duality, and comes about from the compactification (see reference [1]) of extra space dimensions in a ten-dimensional superstring theory. A particle has the property of momentum, whereas ...
fundamental_reality\Black hole war
... Strings have entropy. The presence of a photon represents one single bit of information. As more energy is pumped into the photon, it becomes a string with thermal jitters. The tangle of the string is too complicated to describe in detail, but a rough description is possible. This is the “hidden inf ...
... Strings have entropy. The presence of a photon represents one single bit of information. As more energy is pumped into the photon, it becomes a string with thermal jitters. The tangle of the string is too complicated to describe in detail, but a rough description is possible. This is the “hidden inf ...
Unruh Effect in Closed String Theory
... in Rindler space-time by the combination of the solutions of Klein-Gordon eq. in Minkowski space-time, it would be OK! Minkowski ...
... in Rindler space-time by the combination of the solutions of Klein-Gordon eq. in Minkowski space-time, it would be OK! Minkowski ...
“Elegant Universe” Part One “Einstein`s Dream”
... weeks and months working on a theory to unify all the known laws of physics… a theory so powerful that it would describe all the workings of the universe- a unifying theory called a. The Principles of Relativity b. Quantum Mechanics c. Mike and the Mechanics d. The Theory of Everything 2. _____ Toda ...
... weeks and months working on a theory to unify all the known laws of physics… a theory so powerful that it would describe all the workings of the universe- a unifying theory called a. The Principles of Relativity b. Quantum Mechanics c. Mike and the Mechanics d. The Theory of Everything 2. _____ Toda ...
text - Physics Department, Princeton University
... Einstein’s special theory of relativity describes how space and time are interdependent. While relativity theory may seem a bit exotic, its main slogans are well-known: ‘Nothing can travel faster than light.’ ‘Time is not absolute but relative: a space-traveling twin stays younger than the brother w ...
... Einstein’s special theory of relativity describes how space and time are interdependent. While relativity theory may seem a bit exotic, its main slogans are well-known: ‘Nothing can travel faster than light.’ ‘Time is not absolute but relative: a space-traveling twin stays younger than the brother w ...
Bethe Ansatz in AdS/CFT: from local operators to classical strings
... • Length fluctuations: operators (states of the spin chain) of different length mix ...
... • Length fluctuations: operators (states of the spin chain) of different length mix ...
Progress Report 1: Search for Low Mass Strings at the LHC with CMS
... particle phenomenology with the development of the concept of the D-brane, a class of extended objects upon which open strings can end with Dirichlet boundary conditions. It has recently been demonstrated that signals for superstring theory may be detected at the LHC provided the fundamental mass sc ...
... particle phenomenology with the development of the concept of the D-brane, a class of extended objects upon which open strings can end with Dirichlet boundary conditions. It has recently been demonstrated that signals for superstring theory may be detected at the LHC provided the fundamental mass sc ...