## Tags

The following tags are used throughout this site:

eng | Literature in English language. |

textbook | A textbook published by renowned authors, which contains large portions of information and almost completely exhausts its general subject. |

pop-book | A popularized book without complicated mathematics. |

lecture | A lecture published by a well-known author, which contains large portions of information on the specific subject. |

paper | A scientific paper or preprint. |

note | A note taken by me or somebody else which contents some might find useful. |

notebook | A collection of notes. |

draft | An unfinished note. |

post | A blog post. |

faq | Frequently asked questions. |

math | Mathematical methods suitable for physical computations. |

compl-math | Applies to items which make use of unjustifiably complicated mathematics. |

genalg | Abstract algebra. |

lie | Lie groups and algebras and their representations. |

diff-geom | Differential geometry. |

wolfram | Wolfram Mathematica. |

classical | Applies to everything which doesn't rely on the principles of quantum mechanics. |

analyt | Analytical mechanics: Lagrangian and Hamiltonian formalisms, Noether's theorem, etc. |

classical-fields | Classical relativistic field theory. |

spec-rel | Special theory of relativity describes motion at significant fractions of the speed of light. |

gen-rel | General theory of relativity is a modern theory of spacetime, which describes gravity as a manifestation of its properties. |

black-hole | Various classical black hole solutions of the equations of general relativity. |

quantum | Applies to everything which deals with principles of quantum mechanics. |

qm | Quantum mechanics describes the microscopical properties of nature in a regime where classical mechanics no longer applies. |

qm-interp | The ongoing philosophical debate on the various aspects of interpretations of quantum mechanics. |

qft | Quantum field theory studies the quantization of classical fields leading to quantum-mechanical models, compatible with special-relativistic spacetime. |

qft-b | Quantum field theory for beginners: free fields, second quantization, Wick's theorem, interaction picture, Feynman diagrams. |

qft-a | Advanced quantum field theory: functional methods, renormalization, non-Abelian gauge theories, the standard model of elementary particles. |

qft-cst | Quantum field theory in curved spacetime. |

qft-t | Topological quantum field theory describes quantum systems with no local degrees of freedom which possess nontrivial global behaviour. |

path-int | Path or functional integrals are used in an independent formulation of quantum physics through summing over classical histories. |

na-gauge | Non-Abelian gauge theories. |

qed | Quantum Electrodynamics. |

qcd | Quantum Chromodynamics. |

sm | The Standard Model of elementary particles and forces. |

gut | Grand unification of strong and electroweak forces. |

renorm | Renormalization of quantum field theories. |

brst | The Becchi-Rouet-Stora-Tyutin method of quantizing gauge theories. |

qg | Applies to the traditional attempts at quantizing general relativity which ultimately lead to a nonrenormalizable theory. |

susy | Supersymmetry is a hypothesized symmetry of the laws of nature which interchanges the bosonic and fermionic degrees of freedom. |

sugra | Supergravity is a natural extension of supersymmetry to a local symmetry of a gravitating theory. |

string | Theories of quantum relativistic strings attempt to describe the behaviour of all known forces including gravity. |

cft | Conformal field theory is made use of in string theory and the study of second-type phase transitions. |

superstring | Supersymmetric versions of string theory. |

m-theory | Various attempts of formulating the proposed 11-dimensional M-theory which should consistently unify the five existing superstring models and supergravity. |

holo | Holographic principle states that the information within a region is stored on its boundary. |

ads-cft | ADS/CFT correspondence is a proposed duality between the gravitational theory in the bulk and a special kind of conformal field theory on the boundary of the region. |

alt | Alternative approaches for quantizing gravity. Applies to all non-string models. |

lqg | Loop quantum gravity is an elegant approach for quantization of background-independent field theories, including general relativity. |

spinfoam | Spinfoams provide a covariant quantization of background-independent theories in the spirit of Feynman's path integrals. |

lqc | Loop quantum cosmology is a branch of loop quantum gravity concerned with its applications to cosmological singularities. |

cdt | Causal dynamical triangulation attempts to build the quantum spacetime out of elementary combinatorical structures called simplexes. |

cst | Causal set theory attempts to build the quantum spacetime out of the fundamental grains connected by causal relations. |

toe | Applies to speculations and alternative attempts of formulating a theory of everything. |

nc-geom | Noncommutative geometry attempts to unify gravity and matter into a single geometrical setting. |

rand-surf | Applies to items which make use of the A. Polyakov's geometric path integral method. |

conf-anom | Conformal anomaly. |

scale-rel | Scale relativity. |

knots | Applications of knot theory (e.g. as a model of elementary particles). |

q-comp | Quantum computing |

msu | Lectures from Moscow State University. |

eth | Applies to the ETH Zurich series of lectures. |

Applies to publications by A. M. Polyakov. | |

Applies to the series of lectures by Dr. David Tong. | |

Applies to lectures by K. V. Stepanyantz. |