Results 31 to 40 of about 18,310,332 (287)
On N = 1 superconformal algebra in the non-critical bosonic string theory [PDF]
In a recent work it has been shown that the bosonic strings could be embedded into a special class of $N=1$ fermionic strings. We argue that the superpartners of any physical state in the spectrum of this fermionic string is non-physical. So, there is no supersymmetry in the space of physical states and the embedding is, in this sense, ``trivial''.
Llatas, Pablo M., Roy, Shibaji
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Studying critical string emerging from non-Abelian vortex in four dimensions
Recently a special vortex string was found [5] in a class of soliton vortices supported in four-dimensional Yang–Mills theories that under certain conditions can become infinitely thin and can be interpreted as a critical ten-dimensional string.
P. Koroteev, M. Shifman, A. Yung
doaj +1 more source
Exact amplitudes in four-dimensional non-critical string theories [PDF]
The large Nc expansion of N=2 supersymmetric Yang-Mills theory with gauge group SU(Nc) has recently been shown to break down at singularities on the moduli space. We conjecture that by taking Nc to infinity and approaching the singularities in a correlated way, all the observables of the theory have a finite universal limit yielding amplitudes in ...
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Confinement in 4D Yang-Mills theories from non-critical type 0 string theory [PDF]
25 pages, Latex. 1 figure. v2: refs.
Armoni, Adi +2 more
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Aspects of Topological String Theory [PDF]
Two aspects of the topological string and its applications are considered in this thesis. Firstly, non-perturbative contributions to the OSV conjecture relating four-dimensional extremal black holes and the closed topological string partition function ...
Cook, Paul Langabi Hogan
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T T ¯ $$ T\overline{T} $$ deformations, massive gravity and non-critical strings
The T T ¯ $$ T\overline{T} $$ deformation of a 2 dimensional field theory living on a curved space- time is equivalent to coupling the undeformed field theory to 2 dimensional ‘ghost-free’ massive gravity. We derive the equivalence classically, and using
Andrew J. Tolley
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Boundary conformal field theories on random surfaces and the non-critical open string [PDF]
We analyse boundary conformal field theories on random surfaces using the conformal gauge approach of David, Distler and Kawai. The crucial point is the choice of boundary conditions on the Liouville field. We discuss the Weyl anomaly cancellation for Polyakov`s non-critical open bosonic string with Neumann, Dirichlet and free boundary conditions ...
Mansfield, P., Neves, R.
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Tensionless strings and the weak gravity conjecture
We test various conjectures about quantum gravity for six-dimensional string compactifications in the framework of F-theory. Starting with a gauge theory coupled to gravity, we analyze the limit in Kähler moduli space where the gauge coupling tends to ...
Seung-Joo Lee +2 more
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c > 1 non-critical strings and large-N matrix field theory [PDF]
Motivated by a possible relativistic string description of hadrons we use a discretised light-cone quantisation and Lanczos algorithm to investigate the phase structure of phi^3 matrix field theory in the large N limit. In 1+1 dimensions we confirm the existence of Polyakov's non-critical string theory at the boundary between parton-like and string ...
Antonuccio, F., Dalley, S.
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Non-Critical String Duals of N=1 Quiver Theories [PDF]
We construct N=1 non-critical strings in four dimensions dual to strongly coupled N=1 quiver gauge theories in the Coulomb phase, generalizing the string duals of Argyres-Douglas points in N=2 gauge theories. They are the first examples of superstrings vacua with an exact worldsheet description dual to chiral N=1 theories.
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