Results 61 to 70 of about 859 (194)

T-duality invariant approaches to string theory [PDF]

open access: yes, 2010
PhDThis thesis investigates the quantum properties of T-duality invariant formalisms of String Theory. We introduce and review duality invariant formalisms of String Theory including the Doubled Formalism.
Thompson, Daniel C.
core   +4 more sources

A geometric dual of c-extremization

open access: yesJournal of High Energy Physics, 2019
We consider supersymmetric AdS3 × Y 7 and AdS2 × Y 9 solutions of type IIB and D = 11 supergravity, respectively, that are holographically dual to SCFTs with (0, 2) supersymmetry in two dimensions and N $$ \mathcal{N} $$ = 2 supersymmetry in one ...
Christopher Couzens   +3 more
doaj   +1 more source

On Calabi‐Yau Manifolds at Strong Topological String Coupling

open access: yesFortschritte der Physik, Volume 72, Issue 12, December 2024.
Abstract It was recently shown that integrating out M2 states on Calabi‐Yau manifolds captures non‐perturbative topological string physics in the free energy. In this note, It has been shown that the resulting expression manifests a certain duality symmetry: the free energy at strong string coupling is equal to the Calabi‐Yau period at weak string ...
Jarod Hattab, Eran Palti
wiley   +1 more source

de Sitter State in Heterotic String Theory

open access: yesFortschritte der Physik, Volume 72, Issue 11, November 2024.
Abstract Recent no‐go theorems have ruled out four‐dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well‐defined Wilsonian effective action and other related phenomena also appear to rule out such time‐dependent vacua with de Sitter isometries, even in the presence of quantum corrections.
Stephon Alexander   +4 more
wiley   +1 more source

HIDDEN QUANTUM-MECHANICAL SUPERSYMMETRY IN EXTRA DIMENSIONS [PDF]

open access: yesMathematical Physics, 2012
We study higher dimensional field theories with extra dimensions from a 4d spectrum point of view. It is shown that 4d mass spectra of spinor, gauge and gravity field theories are governed by quantum-mechanical supersymmetry. The 4d massless modes turn out to correspond to zero energy vacuum states of the supersymmetry.
openaire   +2 more sources

Group Structural Realism [PDF]

open access: yes, 2009
We present a precise form of structural realism, called 'group structural realism,' which identifies 'structure' in quantum theory with symmetry groups.
Roberts, Bryan W., Bryan W. Roberts
core   +1 more source

Small circle expansion for adjoint QCD2 with periodic boundary conditions

open access: yesJournal of High Energy Physics
We study 1 + 1-dimensional SU(N) gauge theory coupled to one adjoint multiplet of Majorana fermions on a small spatial circle of circumference L. Using periodic boundary conditions, we derive the effective action for the quantum mechanics of the holonomy
Ross Dempsey   +3 more
doaj   +1 more source

Bion non-perturbative contributions versus infrared renormalons in two-dimensional ℂP N − 1 models

open access: yesJournal of High Energy Physics, 2019
We derive the semiclassical contributions from the real and complex bions in the two-dimensional ℂP N − 1 sigma model on ℝ×S 1 with a twisted boundary condition. The bion configurations are saddle points of the complexified Euclidean action, which can be
Toshiaki Fujimori   +4 more
doaj   +1 more source

Interface‐Interactive Nanoarchitectonics: Solid and/or Liquid

open access: yesChemPhysChem, Volume 25, Issue 19, October 1, 2024.
As the concept of post‐nanotechnology, the new concept of nanoarchitectonics is now emerging. However, such structural control and fabrication are not always easy. A realistic methodology to control such structures is the use of interfacial environments. In this review paper, under the title of interface‐interactive nanoarchitectonics, several examples
Katsuhiko Ariga
wiley   +1 more source

Hidden supersymmetries in supersymmetric quantum mechanics [PDF]

open access: yesNuclear Physics B, 2001
Misprints corrected, two refs. added.
de Azcárraga, J. A.   +2 more
openaire   +3 more sources

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