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Mathematical concept
In string theory, a worldsheet is a two-dimensional manifold which describes the embedding of a string in spacetime. The term was coined by Leonard Susskind
Worldsheet
2D conformal field theory used in string theory
an action of the two-dimensional conformal field theory describing the worldsheet of a string in string theory. It was introduced by Stanley Deser and Bruno
Polyakov_action
Hypothetical physical entity
through spacetime, a string sweeps out a two-dimensional surface called its worldsheet. This is analogous to the one-dimensional worldline traced out by a point
String_(physics)
26-dimensional string theory
the string means that only interaction corresponding to an orientable worldsheet are allowed (e.g., two strings can only merge with equal orientation)
Bosonic_string_theory
Aspect of theoretical physics
dimensions. Both theories are based on oriented closed strings. On the worldsheet, they differ only in the choice of GSO projection. They were first discovered
Type_II_string_theory
Superstring consistency requirement
of possible vertex operators in the worldsheet conformal field theory (CFT)—usually those with specific worldsheet fermion number and periodicity conditions
GSO_projection
Superstring quantization approach
(RNS) formalism is an approach to formulating superstrings in which the worldsheet has explicit superconformal invariance but spacetime supersymmetry is
RNS_formalism
Compact astronomical body
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Black_hole
Formalism in string theory
closed strings. In addition, depending on the method used to fix the worldsheet diffeomorphisms and conformal transformations in the original free string
String_field_theory
Set of mathematical concepts in quantum gravity
which includes quantum corrections to the metric tensor, such as the worldsheet instantons. For example, the quantum volume of a cycle is computed from
Quantum_geometry
Supersymmetric extension to the Virasoro algebra
periodicity depends on the choice of coordinates on the worldsheet. In the w-frame, in which the worldsheet of a single string state is described as a long cylinder
Super_Virasoro_algebra
Theory in theoretical physics
Topological string theory is obtained by a topological twist of the worldsheet description of ordinary string theory: the operators are given different
Topological_string_theory
Theory of subatomic structure
Interaction in the quantum world: worldlines of point-like particles or a worldsheet swept up by closed strings in string theory
String_theory
Generalization of a black hole to higher dimensions
metric with signature (−, +, +, +, ...), σ are the coordinates for the worldsheet of the black p-brane, u is its four-velocity, r is the radial coordinate
Black_brane
Riemannian manifold with SU(n) holonomy
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Calabi–Yau_manifold
Principle in theoretical physics
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Holographic_principle
Hypothetical particle
Berman & Perry (2006).) In string theory, there is also a dilaton in the worldsheet CFT – two-dimensional conformal field theory. The exponential of its vacuum
Dilaton
American theoretical physicist (born 1940)
principle Matrix theory (physics) String theory String theory landscape Worldsheet RST model Susskind–Glogower operator Kogut–Susskind fermions Fischler–Susskind
Leonard_Susskind
Class of quantum field theory models
relevant in string theory where the two-dimensional manifold is named worldsheet. Appreciation of its generalized renormalizability was provided by Daniel
Non-linear_sigma_model
Hypothetical faster-than-light particle
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Tachyon
Theory in physics
interactions between quarks. In order for a string theory to be consistent, the worldsheet theory must be conformally invariant. The obstruction to conformal symmetry
Non-critical_string_theory
In string theory, N = 2 superstring is a theory in which the worldsheet admits N = 2 supersymmetry rather than N = 1 supersymmetry as in the usual superstring
N_=_2_superstring
Compare and contrast article
to the worldsheet curvature of other strings, so their abundance through space-time determines the measure by which an average string worldsheet will be
Relationship between string theory and quantum field theory
Relationship_between_string_theory_and_quantum_field_theory
Branch of mathematics
manifolds, and these spaces find uses in string theory. In particular, worldsheets of strings are modelled by Riemann surfaces, and superstring theory predicts
Geometry
Dimensionality of space at which the character of the phase transition changes
be determined by the required cancellation of conformal anomaly on the worldsheet; it is 26 for the bosonic string theory and 10 for superstring theory
Critical_dimension
model of string theory. It is a superstring theory in the sense that the worldsheet theory is supersymmetric. However, the spacetime spectrum is not supersymmetric
Type_0_string_theory
Geometric space whose points represent algebro-geometric objects of some fixed kind
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Moduli_space
Two-form field
while the Kalb–Ramond field must be integrated over the two-dimensional worldsheet of the string. In particular, while the action for a charged particle
Kalb–Ramond_field
Indian physicist
David, Justin R.; Gopakumar, Rajesh (17 January 2007). "From spacetime to worldsheet: Four point correlators". Journal of High Energy Physics. 0701:063 (1):
Rajesh_Gopakumar
2D conformal field theories
such as minimal models. Moreover, they play an important role in the worldsheet approach to string theory. In a free bosonic CFT, the Virasoro algebra's
Massless free scalar bosons in two dimensions
Massless_free_scalar_bosons_in_two_dimensions
Duality between theories of gravity on anti-de Sitter space and conformal field theories
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
AdS/CFT_correspondence
Special collection of states in closed string theory
conjugacy class of G, we have a different superselection sector (wrt the worldsheet). The conjugacy class consisting of the identity gives rise to the untwisted
Twisted_sector
Algebra describing 2D conformal symmetry
Virasoro algebra comprises the generators of the conformal group of the worldsheet, the stress tensor in string theory obeys the commutation relations of
Virasoro_algebra
Hypothetical elementary particle that mediates gravity
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Graviton
Convex polytope of parenthesizations
"Scattering Forms and the Positive Geometry of Kinematics, Color and the Worldsheet", Journal of High Energy Physics, 2018: 96, arXiv:1711.09102, doi:10
Associahedron
Extended physical object in string theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Brane
Breakdown of conformal symmetry at the quantum level
massive "string constant". In string theory, conformal symmetry on the worldsheet is a local Weyl symmetry. There is also a potential gravitational anomaly
Conformal_anomaly
Concept in string theory
string travels through spacetime it traces out a surface, called the worldsheet of the string. Unfortunately, the moduli space of such parametrized surfaces
Gromov–Witten_invariant
Secondary characteristic classes of 3-manifolds
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Chern–Simons_form
Framework of superstring theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
M-theory
Invariant action in bosonic string theory
generate timelike diffeomorphisms and spacelike diffeomorphisms on the worldsheet. The Hamiltonian H = P ⋅ X ˙ − L = 0 {\displaystyle H=P\cdot {\dot {X}}-{\mathcal
Nambu–Goto_action
Concept in physics
the object is a point particle) or worldsheets (if the object is larger than a point). The worldline or worldsheet only describes the motion of the object;
Postulates of special relativity
Postulates_of_special_relativity
Concept in theoretical physics
groups G 1 {\displaystyle G_{1}} and G 2 {\displaystyle G_{2}} and the worldsheet parity operator Ω p {\displaystyle \Omega _{p}} (such that Ω p : σ → 2
Orientifold
Model of the extended complex plane plus a point at infinity
a relativistic model for the celestial sphere. In string theory, the worldsheets of strings are Riemann surfaces, and the Riemann sphere, being the simplest
Riemann_sphere
Unified field theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Kaluza–Klein_theory
Extension to the Poincaré group
Yang–Mills theory due its relevance for AdS/CFT correspondence. Also, the worldsheet in string theory is described by a two-dimensional conformal field theory
Conformal_symmetry
Algebraic structure used in theoretical physics
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Lie_superalgebra
Theories in particle physics and cosmology
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Brane_cosmology
Path of an object through spacetime
World line, worldsheet, and world volume, as they are derived from particles, strings, and branes
World_line
Object in six-dimensional spacetime
solutions of Lunin and Mathur. David Tong (2002). "NS5-Branes, T-Duality and Worldsheet Instantons". Journal of High Energy Physics. 2002 (7): 013. arXiv:hep-th/0204186
NS5-brane
Symmetry between bosons and fermions
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Supersymmetry
Collection of possible string theory vacua
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
String_theory_landscape
Topics referred to by the same term
action, two-dimensional action of a conformal field theory describing the worldsheet of a string in string theory 't Hooft–Polyakov monopole, a topological
Polyakov_(disambiguation)
Theory of quantum gravity merging quantum mechanics and general relativity
geometry (gravitons) are both described as excitations on the string worldsheet. The background dependence of string theory can have physical consequences
Loop_quantum_gravity
248-dimensional exceptional simple Lie group
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
E8_(mathematics)
Theory proposed by Roger Penrose
S2CID 36625491. Adamo, Tim; Casali, Eduardo; Skinner, David (2015-02-01). "A worldsheet theory for supergravity". Journal of High Energy Physics. 2015 (2): 116
Twistor_theory
Modern theory of gravitation that combines supersymmetry and general relativity
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Supergravity
Israeli American theoretical physicist
Dine, Seiberg, X. G. Wen, and Witten studied instantons on the string worldsheet. Gregory Moore and Seiberg studied Rational Conformal Field Theories.
Nathan_Seiberg
South African theoretical physicist (1928-2016)
conformal invariance to calculate tree level string amplitudes on many worldsheet domains. Mandelstam was the first to explicitly construct the fermion
Stanley_Mandelstam
Type of Riemannian manifold
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Hyperkähler_manifold
Eight-dimensional Riemannian manifold
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Spin(7)-manifold
Manifold with Riemannian, complex and symplectic structure
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Kähler_manifold
Mathematics concept
X. When the Riemann surfaces have empty boundary, they represent the worldsheets of closed strings. To cover the case of open strings, one must introduce
Homological_mirror_symmetry
Mathematical theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Twisted_K-theory
Equivalence of two physical theories
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
T-duality
Argentine physicist (1940–2021)
infinite-dimensional Lie algebra which describes the conformal symmetry of the worldsheet of a string embedded in spacetime. A supersymmetric generalization of
Miguel Ángel Virasoro (physicist)
Miguel_Ángel_Virasoro_(physicist)
Type of geometry in mathematics
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Ricci-flat_manifold
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
History_of_string_theory
Type of smooth complex surface of kodaira dimension 0
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
K3_surface
Solitons in Euclidean spacetime
lead to a mass for the photon. In 2-dimensional abelian gauge theories worldsheet instantons are magnetic vortices. They are responsible for many nonperturbative
Instanton
Process in particle physics
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Tachyon_condensation
Unobservable spacetime curves needed to describe Dirac monopoles
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Dirac_string
Simple Lie group; the automorphism group of the octonions
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
G2_(mathematics)
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
List of quantum field theories
List_of_quantum_field_theories
{\displaystyle p^{+}} is a constant and τ {\displaystyle \tau } is the worldsheet time. light cone coordinates The light cone gauge, Samir D. Mathur QCD
Light_cone_gauge
Type of Kac–Moody algebras
coset models. As a consequence, affine Lie algebras also appear in the worldsheet description of string theory. The Heisenberg algebra defined by generators
Affine_Lie_algebra
Theory of strings with supersymmetry
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Superstring_theory
Type of 2D conformal field theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Wess–Zumino–Witten_model
Peruvian theoretical physicist (b. 1954)
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Barton_Zwiebach
Graphical representation of supersymmetric algebras
Hubsch, "On Dimensional Extension of Supersymmetry: From Worldlines to Worldsheets" Zhang, Yan X. (2011). "Adinkras for Mathematicians". arXiv:1111.6055
Adinkra_symbols_(physics)
Asymmetry of classical and quantum action
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Anomaly_(physics)
Equivalence of two physical theories
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
S-duality
Japanese-American nobel-winning physicist
which describes the dynamics of a relativistic string as the area of the worldsheet swept out in spacetime. This formalism became a central component of modern
Yoichiro_Nambu
Field theory of a point particle confined to move on a fixed manifold
Euclidean space for condensed matter applications, or a Riemann surface, the worldsheet in string theory. The ∂ μ ϕ = ∂ ϕ / ∂ x μ {\displaystyle \partial _{\mu
Sigma_model
Quantum mechanical model based on mathematical matrices
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Matrix_theory_(physics)
Generalized manifold
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Orbifold
Physics concept of subatomic structure
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Heterotic_string_theory
Seven-dimensional Riemannian manifold
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
G2_manifold
Base space for supersymmetric theories
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Superspace
Branch of string theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
F-theory
In physics and geometry: conjectured relation between pairs of Calabi–Yau manifolds
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Mirror symmetry (string theory)
Mirror_symmetry_(string_theory)
Extended objects found in string theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
D-brane
78-dimensional exceptional simple Lie group
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
E6_(mathematics)
Lie algebra, usually infinite-dimensional
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Kac–Moody_algebra
Candidate "Theory of Everything"
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Introduction_to_M-theory
52-dimensional exceptional simple Lie group
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
F4_(mathematics)
Set of equations that describe superstring theory in a non-perturbative framework
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Matrix_string_theory
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
S-brane
Algebra used in 2D conformal field theories and string theory
which transform 'like tensors' under coordinate transformations of the worldsheet in string theory. L ( z ) = ∑ L m z − m − 2 {\displaystyle L(z)=\sum L_{m}z^{-m-2}}
Vertex_operator_algebra
E8) ADE classification Dirac string p-form electrodynamics Geometry Worldsheet Kaluza–Klein theory Compactification Why 10 dimensions? Kähler manifold
Hořava–Witten_theory
WORLDSHEET
WORLDSHEET
WORLDSHEET
WORLDSHEET
Boy/Male
Tamil
Fresh, Dear, Rare, Pinnacle
Boy/Male
Indian
A Hindu Month
Girl/Female
Indian
Beloved, Goddess of Love
Girl/Female
Hindu
Queen Radha, The beloved of Sri Krishna Bhagavan
Girl/Female
Hindu, Indian, Sanskrit, Tamil
Deer; Lord Hari
Girl/Female
Indian
Courtesy
Surname or Lastname
English
English : most probably a variant of Brogden.
Girl/Female
Spanish Celtic
White.
Boy/Male
Muslim
A narrator of Hadith
Boy/Male
Muslim/Islamic
Shining
WORLDSHEET
WORLDSHEET
WORLDSHEET
WORLDSHEET
WORLDSHEET