Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download String Theory
Document related concepts
Mathematical formulation of the Standard Model wikipedia , lookup
Interpretations of quantum mechanics wikipedia , lookup
Quantum electrodynamics wikipedia , lookup
Quasi-set theory wikipedia , lookup
Quantum field theory wikipedia , lookup
Quantum chromodynamics wikipedia , lookup
Old quantum theory wikipedia , lookup
An Exceptionally Simple Theory of Everything wikipedia , lookup
Renormalization group wikipedia , lookup
Grand Unified Theory wikipedia , lookup
Canonical quantization wikipedia , lookup
Relational approach to quantum physics wikipedia , lookup
Supersymmetry wikipedia , lookup
String theory wikipedia , lookup
Standard Model wikipedia , lookup
Renormalization wikipedia , lookup
Quantum gravity wikipedia , lookup
Yang–Mills theory wikipedia , lookup
Event symmetry wikipedia , lookup
Elementary particle wikipedia , lookup
Scalar field theory wikipedia , lookup
Hidden variable theory wikipedia , lookup
History of quantum field theory wikipedia , lookup
Topological quantum field theory wikipedia , lookup
AdS/CFT correspondence wikipedia , lookup
Topological string theory wikipedia , lookup
Transcript
String Theory Mihir John What are the most basic constituents that make up the universe around us? Why use String Theory? String Theory is believed to bridge the gap between General Relativity and Quantum Mechanics This is because Relativistic Quantum Field Theory only works when gravity is ignored (very weak) General Relativity only works when we can assume the universe can be described by classical physics (no quantum mechanics) String Theory Suppositions In string theory, particles come from excitations of the string The theorized particle with gravitational force, with zero mass and two units of spin, is called the Graviton Even though the graviton is compatible with quantum theory, the mathematics of the interactions does not follow String Theory allows that these particles collide over a small, finite distance String Theory Basics With string theory attempting the explain Quantum Gravity, the strings exist near Planck length (10^-33cm) Multiple types of string theory exist, and are classified by open/closed strings and also supersymmetry. (bosons and fermions) Different string theories require different spacetime dimensions to work—Range from 10 to 26 String Theory Unification If “strings” are the most basic constituents of the universe, and all particles arise from their excititation, then all matter and the forces of nature arise from strings If everything arises from one system, is a unified theory not possible? Supporting String Theory Experimental data from particle accelerators such as CERN could provide insight Primarily, comparing energy levels from collisions could support the theory of additional dimensions Particle accelerators could also provide data for theorized particles such as the graviton Additional Sources TEDTalk- Brian Greene-Making Sense of String Theory
