Results 71 to 80 of about 686 (196)

Effects of θ in supersymmetric theories

open access: yesPhysics Letters B, 1983
Abstract Possible effects of introduction of the “θ-parameter” into supersymmetric theories are investigated on the basis of a 1/ N expansion. It is found that, in a two-dimensional SU( N )-symmetric U(1) gauge theory without chiral symmetry, supersymmetry remains unbroken in the presence of the θ-term although physical quantities depend on θ and ...
openaire   +1 more source

Modeling General Asymptotic Calabi–Yau Periods

open access: yesFortschritte der Physik, Volume 73, Issue 7, July 2025.
Abstract In the quest to uncovering the fundamental structures that underlie some of the asymptotic Swampland conjectures the authors initiate the general study of asymptotic period vectors of Calabi–Yau manifolds. The strategy is to exploit the constraints imposed by completeness, symmetry, and positivity, which are formalized in asymptotic Hodge ...
Brice Bastian   +2 more
wiley   +1 more source

Aspects of Effective Supersymmetric Theories

open access: yes, 2012
Ph.D. thesis. Advisor: Prof. Ignatios Antoniadis.
openaire   +2 more sources

Globally and locally supersymmetric effective theories for light fields [PDF]

open access: yesNuclear Physics B, 2009
25 pages; v2 minor corrections and references ...
Leonardo Brizi   +2 more
openaire   +2 more sources

Programmable photonic unitary circuits for light computing

open access: yesNanophotonics, Volume 14, Issue 10, Page 1429-1449, May 2025.
Abstract Unitarity serves as a fundamental concept for characterizing linear and conservative wave phenomena in both classical and quantum systems. Developing platforms that perform unitary operations on light waves in a universal and programmable manner enables the emulation of complex light–matter interactions and the execution of general‐purpose ...
Kyuho Kim   +5 more
wiley   +1 more source

Two-loop anomalous dimensions for four-Fermi operators in supersymmetric theories

open access: yesNuclear Physics B, 2017
We derive two-loop anomalous dimensions for four-Fermi operators in supersymmetric theories using the effective Kähler potential. We introduce the general forms in generic gauge theories and apply our results to the flavor-changing operators in (minimal)
Junji Hisano   +3 more
doaj   +1 more source

The twisted index and topological saddles

open access: yesJournal of High Energy Physics, 2022
The twisted index of 3d N $$ \mathcal{N} $$ = 2 gauge theories on S 1 × Σ has an algebro-geometric interpretation as the Witten index of an effective supersymmetric quantum mechanics.
Mathew Bullimore   +3 more
doaj   +1 more source

Dark Dimension With (Little) Strings Attached

open access: yesFortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source

The action of long strings in supersymmetric field theories

open access: yesJournal of High Energy Physics, 2019
Long strings emerge in many Quantum Field Theories, for example as vortices in Abelian Higgs theories, or flux tubes in Yang-Mills theories. The actions of such objects can be expanded in the number of derivatives, around a long straight string solution.
Tomer Solberg, Mykhailo Yutushui
doaj   +1 more source

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