Results 51 to 60 of about 29,716 (213)

Simultaneous Bosonic and Fermionic T‐Dualization of the Type II Superstring Theory—Buscher Approach and Double Space Representation

open access: yesFortschritte der Physik, Volume 74, Issue 1, January 2026.
Abstract In this article I consider type II superstring in the pure spinor formulation with constant background fields in the context of T‐dualization. First, I prove that bosonic and fermionic T‐dualization commute using already known T‐dual transformation laws for bosonic and fermionic T‐dualization.
B. Nikolić
wiley   +1 more source

Comments on the RG‐Flow in Open String Field Theory

open access: yesFortschritte der Physik, Volume 73, Issue 12, December 2025.
Abstract We define a metric G$G$ on the KBc‐subalgebra modulo gauge and describe the worldsheet RG‐flow as the gradient flow of the action of cubic open string field theory, where the flow lines are kink‐solitons. In particular, for a constant tachyon the gradient flow equations are equivalent to the RG‐equations. Additionally, a more general family of
Julius Hristov
wiley   +1 more source

On the Uniqueness of String Theory

open access: yes, 1993
We show that bosonic strings may be viewed as a particular class of vacua for N=1 superstrings, and N=1 superstrings may be viewed as a particular class of vacua for N=2 strings.
Berkovits, Nathan, Vafa, Cumrun
core   +2 more sources

Scattering amplitudes of regularized bosonic strings [PDF]

open access: yes, 2017
We compute scattering amplitudes of the regularized bosonic Nambu-Goto string in the mean-field approximation, disregarding fluctuations of the Lagrange multiplier and an independent metric about their mean values.
Ambjorn, J., Makeenko, Y.
core   +4 more sources

GAN Decoder on a Quantum Toric Code for Noise‐Robust Quantum Teleportation

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 11, November 2025.
This study proposes a novel quantum topological code decoder using generative adversarial networks (GANs). By training the GAN with eigenvalue datasets, an enhanced decoding threshold and robust quantum teleportation under depolarizing noise are achieved.
Jiaxin Li   +4 more
wiley   +1 more source

Energy Symmetry Breaking of Dirac and Weyl Fermions in Magnetized Spinning Conical Geometries

open access: yesAdvanced Theory and Simulations, Volume 8, Issue 10, October 2025.
Exact solutions for relativistic fermions in magnetized, spinning conical geometries reveal defect‐induced symmetry breaking between fermion and antifermion energies. Energy levels depend on the magnetic field, background geometry, and fractionalized spin. When the defect's spin dominates, quantum effects diminish.
Abdullah Guvendi, Omar Mustafa
wiley   +1 more source

Effective potential for revolving D-branes

open access: yesJournal of High Energy Physics, 2019
We quantize an open string stretched between D0-branes revolving around each other. The worldsheet theory is analyzed in a rotating coordinate system in which the worldsheet fields obey simple boundary conditions, but instead the worldsheet Lagrangian ...
Satoshi Iso, Hikaru Ohta, Takao Suyama
doaj   +1 more source

Dirichlet Boundary Conditions in Generalized Liouville Theory toward a QCD String

open access: yes, 2000
We consider bosonic noncritical strings as QCD strings and we present a basic strategy to construct them in the context of Liouville theory. We show that Dirichlet boundary conditions play important roles in generalized Liouville theory.
Nakamura, Shin
core   +2 more sources

Non-supersymmetric D-Brane Configurations with Bose-Fermi Degenerate Open String Spectrum [PDF]

open access: yes, 1999
The spectrum of open strings on various non-BPS D-brane configurations in type II string theory on a K3 orbifold is analysed. At a generic point in the corresponding moduli space the spectrum of open strings does not have any degeneracy between bosonic ...
Gaberdiel, Matthias R, Sen, Ashoke
core   +2 more sources

Holomorphic field theories and higher algebra

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 10, Page 2903-2974, October 2025.
Abstract Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogs of the rich interplay between Riemann surfaces, Virasoro and Kac‐Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics — field theories that are holomorphic in nature, such as holomorphic Chern‐Simons ...
Owen Gwilliam, Brian R. Williams
wiley   +1 more source

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