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String theory

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String theory is a still-developing approach to theoretical physics, whose original building blocks are one-dimensional extended objects called strings. Unlike the point particles in quantum field theories such as the standard model of particle physics, strings interact in a way that is almost uniquely specified by mathematical self-consistency, forming an apparently valid quantum theory of gravity.... Read enhanced Wikipedia article

Factz from Wikipedia: we found the following about String Theory help

included :
vibrations, strings, fermions, particle, gravity, S-duality, paper, objects and theory.

String Theory included vibrations

String theory String theories which include fermionic vibrations are now known as superstring theories; several different kinds have been described, but all are now thought to be different limits of M-theory.

History of string theory String theories which include fermionic vibrations are now known as superstring theories; several different kinds have been described.

String Theory included strings

String theory String theory includes both open strings, which have two distinct endpoints, and closed strings making a complete loop.

Type II string theory In theoretical physics, type II string theory is a unified term that includes both type IIA strings and type IIB strings.

String Theory included fermions

String theory Investigating how a string theory may include fermions in its spectrum led to the invention of supersymmetry, a mathematical relation between bosons and fermions.

History of string theory Investigating how a string theory may include fermions in its spectrum led to the invention supersymmetry, a mathematical relation between bosons and fermions.

String Theory included particle

String theory In 1974, Tamiaki Yoneya discovered that all the known string theories included a massless spin-two particle which obeyed the correct Ward identities to be a graviton.

String Theory included gravity

Event symmetry However, analysis shows that the excitations of the string fields act as gravitons which can perturb the gravitational field away from the fixed background, so string theory is actually a theory which includes dynamic quantised gravity.

String Theory included S-duality

Ashoke Sen He has made a number of major original contributions to the subject of string theory, including his landmark paper on strong-weak coupling duality or S-duality, which was influential in changing the course of research in the field.

String Theory included paper

Ashoke Sen He has made a number of major original contributions to the subject of string theory, including his landmark paper on strong-weak coupling duality or S-duality, which was influential in changing the course of research in the field.

String Theory included objects

String theory String theories include objects more general than strings, called branes.

String Theory included theory

String theory The logical coherence of the approach, however, and the fact that string theory can include all older theories of physics, have led many physicists to believe that such a connection is possible.

described :
theory, interactions, phenomena, propagation, expansions, strings, particle, John H. Schwarz and world.

String Theory described theory

Everything Based on theoretical holographic principle arguments from the 1990s, many physicists believe that 11-dimensional M-theory, which is described in many sectors by matrix string theory, in many other sectors by perturbative string theory is the complete theory of everything.

Theory of everything Based on theoretical holographic principle arguments from the 1990s, many physicists believe that 11-dimensional M-theory, which is described in many sectors by matrix string theory, in many other sectors by perturbative string theory is the complete theory of everything, although there is no widespread consensus.

String Theory described interactions

M-theory However, since string theory also describes gravitational interactions, one expects the low-energy theory to describe particles moving in gravitational backgrounds.

History of string theory Between 1984 and 1986, physicists realized that string theory could describe all elementary particles and interactions between them, and hundreds of them started to work on string theory as the most promising idea to unify theories of physics.

String Theory described phenomena

Quantum geometry String theory, a leading candidate for a quantum theory of gravity, uses the term quantum geometry to describe exotic phenomena such as T-duality and other geometric dualities, mirror symmetry, topology-changing transitions, minimal possible distance scale, and other effects that challenge our usual geometrical intuition.

String Theory described propagation

Wilson loop The fact that strongly-coupled quantum gauge field theories have elementary nonperturbative excitations which are loops motivated Alexander Polyakov to formulate the first string theories, which described the propagation of an elementary quantum loop in spacetime.

String Theory described expansions

String theory The previous two points are related to a more profound issue: string theory might not be truly fundamental in its present formulation because it is background-dependent — string theory describes perturbative expansions about fixed spacetime backgrounds.

String Theory described strings

Non-critical string theory The non-critical string theory describes the relativistic string without enforcing the critical dimension.

String Theory described particle

History of string theory Between 1984 and 1986, physicists realized that string theory could describe all elementary particles and interactions between them, and hundreds of them started to work on string theory as the most promising idea to unify theories of physics.

String Theory described John H. Schwarz

Tamiaki Yoneya Independently of Joel Scherk and John H. Schwarz, he realized that string theory describes, among other things, the force of gravity.

String Theory described world

Topological string theory Indeed, topological string theory cannot be understood as a realistic theory to describe the physical world.

predicted :
spacetime, existence, number, mass, electromagnetism, superpartners, problems and evidence.

String Theory predicted spacetime

Spacetime Causal sets, loop quantum gravity, string theory, and black hole thermodynamics all predict a quantized spacetime with agreement on the order of magnitude.

Bosonic string theory So bosonic string theory predicts a 26 dimensional spacetime.

String Theory predicted existence

String theory All string theories predict the existence of degrees of freedom which are usually described as extra dimensions.

Graviton String theory predicts the existence of gravitons and their well-defined interactions which represents one of its most important triumphs.

String Theory predicted number

Anthropic principle String theory predicts a large number of possible universes, called the backgrounds or vacua.

String Theory predicted mass

String theory The mass of the photon which is predicted by string theory depends on the energy of the string mode which represents the photon.

String Theory predicted electromagnetism

D-brane In this sense, then, one can say that string theory "predicts" electromagnetism: D-branes are a necessary part of the theory if we permit open strings to exist, and all D-branes carry an electromagnetic field on their volume.

String Theory predicted superpartners

Supersymmetry If the Large Hadron Collider and other major particle physics experiments fail to detect supersymmetric partners or evidence of extra dimensions, many versions of string theory which had predicted certain low mass superpartners to existing particles may need to be significantly revised.

String Theory predicted problems

Cosmological constant More recent work has suggested the problem may be indirect evidence of a cyclic universe predicted by string theory.

String Theory predicted evidence

Cosmological constant More recent work has suggested the problem may be indirect evidence of a cyclic universe predicted by string theory.

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    String theory

    String theory is a still-developing approach to theoretical physics, whose original building blocks are one-dimensional extended objects called strings. Unlike the point particles in quantum field theories such as the standard model of particle physics, strings interact in a way that is almost uniquely specified by mathematical self-consistency, forming an apparently valid quantum theory of gravity.
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    String Theory (band)

    String Theory was an electronic music band from Chicago that existed from 1997 until 2005. The members were Joshua R. Davison and Nathan T. Tucker.
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    Superstring theory

    In the case of string theory, consistency requires spacetime to have 10, 11 or 26 dimensions. ... D-Branes are membrane-like objects in 10D string theory.
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    String field theory

    They were the first string field theories to be constructed and are based on the simplicity of string scattering in light-cone gauge. ... | String theory |
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    Category:String theory

    Further information: string theory String theory is a branch of theoretical physics that attempts to build a theory of quantum gravity using one-dimensional strings rather than zero-dimensional point particles as fundamental building blocks.
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    Topological string theory

    The operators in topological string theory represent the algebra of operators in the full string theory that preserve a certain amount of supersymmetry.
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    History of string theory

    This first superstring revolution was started by a discovery of anomaly cancellation in type I string theory by Michael Green and John H. Schwarz in 1984.
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    String Theory (novels)

    String Theory is a trilogy of novels set in the Star Trek universe. Book one, Cohesion, was written by Jeffrey Lang; book two, Fusion, by Kirsten Beyer; and book three, Evolution, by Heather Jarman.
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    Bosonic string theory

    Another feature of bosonic string theory is that in general the theory displays inconsistencies due to the conformal anomaly.
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    String theory landscape

    The string theory landscape or anthropic landscape refers to the large number of possible false vacua in string theory. The "landscape" includes so many possible configurations that it is thought by some physicists that the known laws of physics, the Standard Model and General relativity with a positive cosmological constant, occurs in at least one of them.

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