Results 21 to 30 of about 469,891 (347)

String theory or field theory? [PDF]

Physics-Uspekhi, 2002
The status of string theory is reviewed, and major recent developments - especially those in going beyond perturbation theory in the string theory and quantum field theory frameworks - are discussed. This analysis helps better understand the role and place of string theory in the modern picture of the physical world.
openaire   +2 more sources

Classical open string amplitudes from boundary string field theory

Journal of High Energy Physics, 2019
We calculate the corrections to the open string BRST charge in boundary string field theory and show that the expansion coefficients agree with the perturbative S-matrix to all orders.
Christoph Chiaffrino, Ivo Sachs
doaj   +1 more source

SYM Description of PP-wave String Interactions: Singlet Sector and Arbitrary Impurities [PDF]

, 2003
We study string interactions among string states with arbitrary impurities in the Type IIB plane wave background using string field theory. We reproduce all string amplitudes from gauge theory by computing matrix elements of the dilatation operator in a ...
Beisert, Beisert, Beisert, Berenstein, Berenstein, Bianchi, Blau, Chu, Chu, Chu, Chu, Constable, Constable, D'Hoker, Gomis, Green, Green, Gross, Gross, Gursoy, Gursoy, He, Huang, Huang, Janik, Jaume Gomis, Jongwon Park, Kiem, Kiem, Klebanov, Klose, Kristjansen, Lee, Lee, Metsaev, Metsaev, Minahan, Pankiewicz, Pankiewicz, Parnachev, Pearson, Roiban, Sanefumi Moriyama, Santambrogio, Spradlin, Spradlin, Vaman, Verlinde, Zhou   +48 more
core   +2 more sources

NONCOMMUTATIVE FIELD THEORIES AND (SUPER)STRING FIELD THEORIES [PDF]

Particles and Fields, 2002
In this lecture notes we explain and discuss some ideas concerning noncommutative geometry in general, as well as noncommutative field theories and string field theories. We consider noncommutative quantum field theories emphasizing an issue of their renormalizability and the UV/IR mixing. Sen's conjectures on open string tachyon condensation and their
Aref'eva, I. Ya., Belov, D. M., Giryavets, A. A., Koshelev, A. S., Medvedev, P. B.   +4 more
openaire   +2 more sources

String Webs from Field Theory [PDF]

, 2001
The spectrum of stable electrically and magnetically charged supersymmetric particles can change discontinuously as one changes the vacuum on the Coulomb branch of gauge theories with extended supersymmetry in four dimensions.
Argyres, Philip C., Narayan, K.
core   +2 more sources

The ZZ annulus one-point function in non-critical string theory: A string field theory analysis

Journal of High Energy Physics, 2022
We compute the ZZ annulus one-point function of the cosmological constant operator in non-critical string theory, regulating divergences from the boundaries of moduli space using string field theory.
Dan Stefan Eniceicu, Raghu Mahajan, Pronobesh Maity, Chitraang Murdia, Ashoke Sen   +4 more
doaj   +1 more source

Space-Time Noncommutative Field Theories And Unitarity [PDF]

, 2000
We study the perturbative unitarity of noncommutative scalar field theories. Field theories with space-time noncommutativity do not have a unitary S-matrix. Field theories with only space noncommutativity are perturbatively unitary.
Abouelsaood, Andreev, Bachas, Barbón, Bilal, Bilal, Burgess, Callan, Chaichian, Chaichian, Connes, Douglas, Eguchi, Filk, Fischler, Fradkin, Ganor, Gomis, Gonzalez-Arroyo, Gopakumar, Greene, Gukov, Hayakawa, Jaume Gomis, Kiem, Liu, Matusis, Minwalla, Nesterenko, Raamsdonk, Rajaraman, Seiberg, Seiberg, Seiberg, Strominger, Thomas Mehen   +35 more
core   +3 more sources

INTERPOLATING STRING FIELD THEORIES [PDF]

Modern Physics Letters A, 1992
A minimal area problem imposing different length conditions on open and closed curves is shown to define a one-parameter family of covariant open-closed quantum string field theories. These interpolate from a recently proposed factorizable open-closed theory up to an extended version of Witten’s open string field theory capable of incorporating on ...
openaire   +2 more sources

Gravitational Scattering Amplitudes and Closed String Field Theory in the Proper-Time Gauge

EPJ Web of Conferences, 2018
We construct a covariant closed string field theory by extending recent works on the covariant open string field theory in the proper-time gauge. Rewriting the string scattering amplitudes generated by the closed string field theory in terms of the ...
Lee Taejin
doaj   +1 more source

SO(32) Spinors of Type I and Other Solitons on Brane-Antibrane Pair [PDF]

, 1998
We construct the SO(32) spinor state in weakly coupled type I string theory as a kink solution of the tachyon field on the D-string - anti-D-string pair and calculate its mass.
Sen, Ashoke
core   +2 more sources