Results 101 to 110 of about 130,847 (255)

Worldsheet instantons and the amplitude for string pair production in an external field as a WKB exact functional integral

Journal of High Energy Physics, 2018
We revisit the problem of charged string pair creation in a constant external electric field. The string states are massive and creation of pairs from the vacuum is a tunnelling process, analogous to the Schwinger process where charged particle-anti ...
James Gordon, Gordon W. Semenoff
doaj   +1 more source

Strings with interacting ends [PDF]

, 1995
At the classical level we study open bosonic strings. A generic description of string self-interactions localized at string ends is given. Self-interactions are characterized by two dimensionless coupling constants.
Wegrzyn, Pawel
core   +2 more sources

Pseudoscalar Field as a Possible Candidate for Phantom Field

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
We demonstrate the existence of a single pseudoscalar (PS) field in the mathematically backed and parity‐preserving modifications of the standard Stückelberg formalism (SSF) in the context of the Lagrangian formulation of the (i) two (1 + 1)‐dimensional (2D) massive Abelian 1‐form gauge theory, (ii) three (2 + 1)‐dimensional (3D) massive Abelian 2‐form
E. Harikumar, R. P. Malik, Burak Bilki
wiley   +1 more source

A new approach to superstring

Journal of High Energy Physics
We show how starting with one-string space of states in BRST formalism one can construct a large class of physical quantities containing, in particular, scattering amplitudes for bosonic string and superstring.
A. Schwarz
doaj   +1 more source

Multiloop soft theorem for gravitons and dilatons in the bosonic string

Journal of High Energy Physics, 2019
We construct, in the closed bosonic string, the multiloop amplitude involving N tachyons and one massless particle with 26 − D compactified directions, and we show that at least for D > 4, the soft behaviors of the graviton and dilaton satisfy the same ...
Paolo Di Vecchia, Raffaele Marotta, Matin Mojaza   +2 more
doaj   +1 more source

Zero Modes on Linked Strings

, 1994
We study linked loops of string in the presence of bosonic condensates and fermionic zero modes on the strings. We find that the strings necessarily carry a current if the bosons have an Aharanov-Bohm interaction with the string.
Barriola, Bogomolnyi, Cheng, de Vega, di Vecchia, Earnshaw, Einhorn, Garfinkle, Garriga, Gipson, Goldstone, Gradshteyn, Huang, Jackiw, James, Jaume Garriga, Letelier, Manton, Manton, Nambu, Nielsen, Soni, Tanmay Vachaspati, Vachaspati, Vachaspati, Vachaspati, Vachaspati, Vachaspati, Weinberg, Witten   +29 more
core   +2 more sources

Strings in AdS_3 and the SL(2,R) WZW Model. Part 1: The Spectrum [PDF]

, 2000
In this paper we study the spectrum of bosonic string theory on AdS_3. We study classical solutions of the SL(2,R) WZW model, including solutions for long strings with non-zero winding number.
Balog J., Bars I., Bars I., Brower R. C., de Boer J., de Vega H. J., Dijkgraaf R., Dixon L. J., Dorn H., Evans J. M., Gepner D., Gepner D., Giribet G., Giveon A., Giveon A., Goddard P., Henningson M., Hirosi Ooguri, Hwang S., Hwang S., Hwang S., Juan Maldacena, Klebanov I. R., Kutasov D., Larsen A. L., Lykken J. D., Maldacena J., Maldacena J., Mohammedi N., Petropoulos P. M. S., Seiberg N., Teschner J., Zamolodchikov A. B.   +32 more
core   +3 more sources

T‐Symmetry in String Geometry Theory

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
String geometry theory is one of the candidates of nonperturbative formulation of string theory. In this paper, we have shown that dimensionally reduced string geometry theories have what we call T‐symmetry. In the case of the dimensional reduction in space‐like directions, the T‐symmetry transformation gives the T‐dual transformation between the Type ...
Matsuo Sato, Taiki Tohshima, Michele Arzano   +2 more
wiley   +1 more source

Modified 3D Massive Abelian 2‐Form Theory With a Single Pseudoscalar Field as a Phantom Field: BRST Approach

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
We obtain the off‐shell nilpotent Becchi–Rouet–Stora–Tyutin (BRST) and anti‐BRST symmetry transformations (corresponding to the infinitesimal classical gauge symmetry transformations) for the modified massive three (2 + 1)‐dimensional (3D) Abelian two‐form gauge theory with a single pseudoscalar field. The latter field (having the negative kinetic term
S. K. Panja, E. Harikumar, R. P. Malik, Xiao Yan Chew   +3 more
wiley   +1 more source

Open String Renormalization Group Flow as a Field Theory

Fortschritte der Physik, Volume 72, Issue 11, November 2024.
Abstract This article shows that the integral flow‐lines of the RG‐flow of open string theory can be interpreted as the solitons of a Hořova–Lifshitz sigma‐model of open membranes. The authors argue that the effective background description of this model implies the g‐theorem of open string theory.
Julius Hristov
wiley   +1 more source