Why Does Space Exist?
... inflaton + axion. We may write 3^20 = 6^10 — my guess is that the 6 represent 3 dimensions of linear momentum + 3 dimensions of angular momentum, while the 10 represents the dimension of the fundamental domain of string theory. The 3^20 allows precisely the amount of dimensional freedom needed for t ...
... inflaton + axion. We may write 3^20 = 6^10 — my guess is that the 6 represent 3 dimensions of linear momentum + 3 dimensions of angular momentum, while the 10 represents the dimension of the fundamental domain of string theory. The 3^20 allows precisely the amount of dimensional freedom needed for t ...
Bethe Ansatz in AdS/CFT: from local operators to classical strings
... • quantize near classical string solutions Frolov,Tseytlin’03-04; Schäfer-Nameki,Zamaklar,Z.’05; Beisert,Tseytlin’05; Hernandez,Lopez’06 ...
... • quantize near classical string solutions Frolov,Tseytlin’03-04; Schäfer-Nameki,Zamaklar,Z.’05; Beisert,Tseytlin’05; Hernandez,Lopez’06 ...
PPT
... The ultimate reality consists of tiny strings, so small that they almost don’t exist (10 to the minus 33rd power). They vibrate constantly and their differences in vibration, amplitude, wave length, etc. and interaction with each other, produce the world as we know it. ...
... The ultimate reality consists of tiny strings, so small that they almost don’t exist (10 to the minus 33rd power). They vibrate constantly and their differences in vibration, amplitude, wave length, etc. and interaction with each other, produce the world as we know it. ...
Byond Particle Physics
... The history of supersymmetry is exceptional. In the past, virtually all major conceptual breakthroughs have occurred because physicists were trying to understand some established aspect of nature. In contrast, the discovery of supersymmetry in the early 1970s was a purely intellectual achievement, d ...
... The history of supersymmetry is exceptional. In the past, virtually all major conceptual breakthroughs have occurred because physicists were trying to understand some established aspect of nature. In contrast, the discovery of supersymmetry in the early 1970s was a purely intellectual achievement, d ...
STRING THEORY
... • String theory suggests that the elementary particles are one-dimensional strings as opposed to zero-dimensional point particles. • All known elementary particles are made up of one building block: the string. • The resonance of each string determines the properties (mass, charge, spin, etc.) of th ...
... • String theory suggests that the elementary particles are one-dimensional strings as opposed to zero-dimensional point particles. • All known elementary particles are made up of one building block: the string. • The resonance of each string determines the properties (mass, charge, spin, etc.) of th ...
Coordinate Noncommutativity, Quantum Groups and String Field
... Blackhole singularities; (AdS/CFT, …) Holographic principle; (Holographic cosmology, …) New idea or concept to have a better understanding of the string theory ! ...
... Blackhole singularities; (AdS/CFT, …) Holographic principle; (Holographic cosmology, …) New idea or concept to have a better understanding of the string theory ! ...
Kaluza-Klein Theory
... dr/d = (c, vx, vy, vz), |dr/d| = c for everything • if someone's clock seems slow, it's because they've steered away (via boost) from your "time" direction, just as one goes north slower in an airplane pointed NNE • adding a dimension has cast motion in a different light, and simplified things ...
... dr/d = (c, vx, vy, vz), |dr/d| = c for everything • if someone's clock seems slow, it's because they've steered away (via boost) from your "time" direction, just as one goes north slower in an airplane pointed NNE • adding a dimension has cast motion in a different light, and simplified things ...
The String Theory
... The theory accounts for hyperspace, traveling faster than light, multiple dimensions, strings traversing different universes. Will the theory help in finding bacterial life forms since it can determine the behavior of basically everything at its core (i.e. where certain particles, bacteria, is limit ...
... The theory accounts for hyperspace, traveling faster than light, multiple dimensions, strings traversing different universes. Will the theory help in finding bacterial life forms since it can determine the behavior of basically everything at its core (i.e. where certain particles, bacteria, is limit ...
1 - Indico
... Dirac quantization still holds, but for a different reason: A charged particle acquires angular momentum from the event ...
... Dirac quantization still holds, but for a different reason: A charged particle acquires angular momentum from the event ...
Introduction to Strings
... whose tensions scale as the inverse power of the string coupling • It is a BPS object which preserves the half ...
... whose tensions scale as the inverse power of the string coupling • It is a BPS object which preserves the half ...
幻灯片 1 - 中国科学院理论物理研究所
... (2) A few serious challenges are awaiting fundamental theory such as string theory to meet. (3) Many researchers in string theory are for the first time facing experiments, not just theoretic artifice. ...
... (2) A few serious challenges are awaiting fundamental theory such as string theory to meet. (3) Many researchers in string theory are for the first time facing experiments, not just theoretic artifice. ...
String Theory
... Later experiments in the 1970s revealed that many of the theory's predictions were noticeable only with experimental data. Point-particle theory succeeded and string theory was left behind The reason for this was that String vibrations produce observable properties that we see in fundamental particl ...
... Later experiments in the 1970s revealed that many of the theory's predictions were noticeable only with experimental data. Point-particle theory succeeded and string theory was left behind The reason for this was that String vibrations produce observable properties that we see in fundamental particl ...
SPACE-TIME , GAUGE-GRAVITY AND STRING
... • The elements in Einstein’s synthesis were space and time. • The surprising synthesis emerging from String theory in the last decade or so involves two other familiar elements of our experience : Light and Gravity. ...
... • The elements in Einstein’s synthesis were space and time. • The surprising synthesis emerging from String theory in the last decade or so involves two other familiar elements of our experience : Light and Gravity. ...
Adventures with Superstrings
... • Predicts extra particles we haven’t seen yet! (Supersymmetry: each fermion is accompanied by a bosonic partner of the same mass) ...
... • Predicts extra particles we haven’t seen yet! (Supersymmetry: each fermion is accompanied by a bosonic partner of the same mass) ...
strings - BCTP, Bonn
... Maldacena ’97: Many strongly coupled 4D GTs possess a weakly coupled description through strings in a curved 5D geometry. ...
... Maldacena ’97: Many strongly coupled 4D GTs possess a weakly coupled description through strings in a curved 5D geometry. ...
Desperately Seeking Superstrings
... Why is the smart money all tied up in strings? Why is so much theoretical capital expended upon the properties of supersymmetric systems of quantum strings propagating in ten-dimensional space-time? The good news is that superstring theory may have the right stuff to explain the “low-energy phenomen ...
... Why is the smart money all tied up in strings? Why is so much theoretical capital expended upon the properties of supersymmetric systems of quantum strings propagating in ten-dimensional space-time? The good news is that superstring theory may have the right stuff to explain the “low-energy phenomen ...
Daniel Heineman Prize: The Quest for Quantum Gravity
... Is there one theory of quantum gravity or many? • If one imposes only two of the three consistency conditions, one can find many theories of quantum gravity. • Many attempts give up Lorentz invariance at the start, and it has even been argued that this is a necessary feature of quantum gravity. • I ...
... Is there one theory of quantum gravity or many? • If one imposes only two of the three consistency conditions, one can find many theories of quantum gravity. • Many attempts give up Lorentz invariance at the start, and it has even been argued that this is a necessary feature of quantum gravity. • I ...
I. What is String Theory?
... It accounts for about 70% of the total energy of the Universe, and it causes the expansion of the Universe to accelerate. The density of this energy is 10^(-120), when expressed in Planck units. How can we understand this number? ...
... It accounts for about 70% of the total energy of the Universe, and it causes the expansion of the Universe to accelerate. The density of this energy is 10^(-120), when expressed in Planck units. How can we understand this number? ...
Questions on The Elegant Universe 1. What was Einstein`s dream
... ♦ The physical fact that it seems like the speed of gravity is equal to the speed of light, so if they go at the same speed, then they have some underlying symmetry. They are different because they have differences in strength. Electromagnetism is stronger. 8. What was discovered in the 1920’s by a ...
... ♦ The physical fact that it seems like the speed of gravity is equal to the speed of light, so if they go at the same speed, then they have some underlying symmetry. They are different because they have differences in strength. Electromagnetism is stronger. 8. What was discovered in the 1920’s by a ...
Superstrings: The “Ultimate Theory of Everything”? Sera Cremonini
... Strings like to live in 10 dimensions Why do we see only four (space-time) ? The other 6 can be very small and curled up ...
... Strings like to live in 10 dimensions Why do we see only four (space-time) ? The other 6 can be very small and curled up ...
String Theory The Theory of Everything
... How Does String Theory Work? • Make up everything • Strings of energy, not spheres • Resonate at different frequencies • Incredibly small • “Smoothes out” QM world ...
... How Does String Theory Work? • Make up everything • Strings of energy, not spheres • Resonate at different frequencies • Incredibly small • “Smoothes out” QM world ...
Matteo Bertolini: Research
... so-called Second String Revolution and my research interests have always being centered, in a way or another, on D-branes, these being undoubtedly the stars of this revolution. ...
... so-called Second String Revolution and my research interests have always being centered, in a way or another, on D-branes, these being undoubtedly the stars of this revolution. ...
superstring theory: past, present, and future john h. schwarz
... in 1971 by Pierre Ramond, André Neveu, and me. It requires 10 dimensions. Its development led to supersymmetry, a new type of symmetry that relates bosons and fermions. Strings with this symmetry are called superstrings. ...
... in 1971 by Pierre Ramond, André Neveu, and me. It requires 10 dimensions. Its development led to supersymmetry, a new type of symmetry that relates bosons and fermions. Strings with this symmetry are called superstrings. ...
PowerPoint
... the gauge theory is strongly coupled we don’t know these mixed equations… they turn out to be the EoM of strings in AdS! ...
... the gauge theory is strongly coupled we don’t know these mixed equations… they turn out to be the EoM of strings in AdS! ...
String Theory
... assume that the universe is purely classical. Early String Theory combined these two and was considered a theory of Quantum Gravity. ...
... assume that the universe is purely classical. Early String Theory combined these two and was considered a theory of Quantum Gravity. ...
String theory
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other. On distance scales larger than the string scale, a string looks just like an ordinary particle, with its mass, charge, and other properties determined by the vibrational state of the string. In string theory, one of the many vibrational states of the string corresponds to the graviton, a quantum mechanical particle that carries gravitational force. Thus string theory is a theory of quantum gravity.String theory is a broad and varied subject that attempts to address a number of deep questions of fundamental physics. String theory has been applied to a variety of problems in black hole physics, early universe cosmology, nuclear physics, and condensed matter physics, and it has stimulated a number of major developments in pure mathematics. Because string theory potentially provides a unified description of gravity and particle physics, it is a candidate for a theory of everything, a self-contained mathematical model that describes all fundamental forces and forms of matter. Despite much work on these problems, it is not known to what extent string theory describes the real world or how much freedom the theory allows to choose the details.String theory was first studied in the late 1960s as a theory of the strong nuclear force, before being abandoned in favor of quantum chromodynamics. Subsequently, it was realized that the very properties that made string theory unsuitable as a theory of nuclear physics made it a promising candidate for a quantum theory of gravity. The earliest version of string theory, bosonic string theory, incorporated only the class of particles known as bosons. It later developed into superstring theory, which posits a connection called supersymmetry between bosons and the class of particles called fermions. Five consistent versions of superstring theory were developed before it was conjectured in the mid-1990s that they were all different limiting cases of a single theory in eleven dimensions known as M-theory. In late 1997, theorists discovered an important relationship called the AdS/CFT correspondence, which relates string theory to another type of physical theory called a quantum field theory.One of the challenges of string theory is that the full theory does not yet have a satisfactory definition in all circumstances. Another issue is that the theory is thought to describe an enormous landscape of possible universes, and this has complicated efforts to develop theories of particle physics based on string theory. These issues have led some in the community to criticize these approaches to physics and question the value of continued research on string theory unification.