Results 21 to 30 of about 725,337 (288)
Quantum simulation of quantum field theory in the light-front formulation [PDF]
Physical Review A, 2020 We develop quantum simulation algorithms based on the light-front formulation of relativistic quantum field theories. We analyze a simple theory in $1+1D$ and show how to compute the analogues of parton distribution functions of composite particles in ...
Michael Kreshchuk +4 more
semanticscholar +1 more source
On Twistors and Conformal Field Theories from Six Dimensions [PDF]
, 2011 We discuss chiral zero-rest-mass field equations on six-dimensional space-time from a twistorial point of view. Specifically, we present a detailed cohomological analysis, develop both Penrose and Penrose-Ward transforms, and analyse the corresponding ...
Christian Saemann, Martin Wolf
semanticscholar +1 more source
Journal of High Energy Physics, 2022 We consider a one-parameter family of composite fields — bi-linear in the components of the stress-energy tensor — which generalise the T T ¯ $$ \mathrm{T}\overline{\mathrm{T}} $$ operator to arbitrary space-time dimension d ≥ 2. We show that they induce
Riccardo Conti +2 more
doaj +1 more source
Some lower dimensional quantum field theories reduced from Chern-Simons gauge theories [PDF]
Physical Review DWe study symmetry reductions in the context of Euclidean Chern-Simons gauge theories to obtain lower dimensional field theories. Symmetry reduction in certain gauge theories is a common tool for obtaining explicit soliton solutions.
Burak Oğuz, B. Tekin
semanticscholar +1 more source
$D$-Dimensional Gravity from $(D+1)$ Dimensions [PDF]
, 1995 We generalise Wesson's procedure, whereby vacuum $(4+1)-$dimensional field equations give rise to $(3+1)-$dimensional equations with sources, to arbitrary dimensions. We then employ this generalisation to relate the usual $(3+1)-$dimensional vacuum field
Rippl, Steve +2 more
core +2 more sources
Carving Out the Space of 4D CFTs [PDF]
, 2011 We introduce a new numerical algorithm based on semidefinite programming to efficiently compute bounds on operator dimensions, central charges, and OPE coefficients in 4D conformal and N=1 superconformal field theories.
Poland, David +2 more
core +3 more sources
Supersymmetric gauged scale covariance in ten and lower dimensions [PDF]
, 2004 We present globally supersymmetric models of gauged scale covariance in ten, six, and four dimensions. This is an application of a recent similar gauging in three dimensions for a massive self-dual vector multiplet.
H. Nishino, S. Rajpoot
semanticscholar +1 more source
Conformal bootstrap deformations
Journal of High Energy Physics, 2022 We explore the space of extremal functionals in the conformal bootstrap. By recasting the bootstrap problem as a set of non-linear equations parameterized by the CFT data, we find an efficient algorithm for converging to the extremal solution ...
Nima Afkhami-Jeddi
doaj +1 more source
Light-ray moments as endpoint contributions to modular Hamiltonians
Journal of High Energy Physics, 2021 We consider excited states in a CFT, obtained by applying a weak unitary perturbation to the vacuum. The perturbation is generated by the integral of a local operator J (n) of modular weight n over a spacelike surface passing through x = 0.
Daniel Kabat +3 more
doaj +1 more source
Wegner-Houghton equation in low dimensions [PDF]
, 1999 We consider scalar field theories in dimensions lower than four in the context of the Wegner-Houghton renormalization group equations (WHRG). The renormalized trajectory makes a non-perturbative interpolation between the ultraviolet and the infrared ...
Carmona, J. M. +2 more
core +2 more sources