## FANDOM

118 Pages

String Theory
Prior to the First Superstring Revolution
Early History S-Matrix Theory
Regge Trajectory
Bosonic String Theory Worldsheet
String
Bosonic String Theory
String Perturbation Theory
Tachyon Condensation
Supersymmetric Revolution Supersymmetry
RNS Formalism
GS Formalism
BPS
Superstring Revolutions
First Superstring Revolution GSO Projection
Type II String Theory
Type IIB String Theory
Type IIA String Theory
Type I String Theory
Type H String Theory
Type HO String Theory
Type HE String Theory
Second Superstring Revolution T-Duality
D-Brane
S-Duality
Horava-Witten String Theory
M-Theory
Holographic Principle
N=4 Super-Yang-Mills Theory
BFSS Matrix Theory
Matrix String Theory
(2,0) Theory
Twistor String Theory
F-Theory
String Field Theory
Pure Spinor Formalism
After the Revolutions
Phenomenology String Theory Landscape
Minimal Supersymmetric Standard Model
String Phenomenology

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Twistor String theory is an equivalence between $\mathcal N=4$ Supersymmetric Yang-Mills theory and the peturbative Topological B model string theory in twistor space] [1] It was initially proposed by Witten in 2003. This is considered a major breakthrough by many as till Witten's 2003 paper, Twistor theory was only applicable to Classical General Relativity. [2]

Since the dimensionality of Twistor space is necessarily the same as 4-dimensional spacetime with metric signature $\left(-+++\right)$, i.e. 1 time and 3 space, this is also a way to do away with the extra dimensions of String Theory.

## ReferencesEdit this section

1. Witten, Edward (December 2003). "Perturbative Gauge Theory As A String Theory In Twistor Space:". Communications in Mathematical Physics. 1 252 (1): 189–258. doi:10.1007/s00220-004-1187-3. Retrieved 10 July 2013.
2. Penrose, Roger; McCallum M.A.H. (9 June 1972). "Twistor Theory: An Approach to the Quantisation of Fields and Space-Time". Physics Reports (Section C of Physics Letters). 1972 6 (4): 241-316.