Results 91 to 100 of about 595 (182)
Programmable photonic unitary circuits for light computing
Nanophotonics, 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
Dark Dimension With (Little) Strings Attached
Fortschritte 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
Sneutrino Dark Matter in the BLSSM
Journal of High Energy Physics, 2018 In the framework of the (B − L) Supersymmetric Standard Model (BLSSM), we assess the ability of ground and space based experiments to establish the nature of its prevalent Dark Matter (DM) candidate, the sneutrino, which could either be CP-even or -odd ...
Luigi Delle Rose +6 more
doaj +1 more source
Vacuum Stability in Supersymmetric Effective Theories
, 2011 The main topics discussed in this thesis are supersymmetric low-energy effective theories and metastability conditions in generic non-renormalizable models with global and local supersymmetry. In the first part we discuss the conditions under which the low-energy expansion in space-time derivatives preserves supersymmetry implying that heavy multiplets
openaire +1 more source
Quantum versus gravitational effects in supersymmetric theories
Nuclear Physics B, 1983 Abstract We consider what happens when certain globally supersymmetric grand unified models are coupled to N = 1 supergravity. Treating only leading (i.e. tree level) gravitational effects while treating non-gravitational effects to all orders, we show how the original globally supersymmetric theory is recovered as M p → ∞.
openaire +1 more source
Holomorphic scalar portals and the OPE
Journal of High Energy Physics, 2017 Visible-sector SUSY-breaking effects are computed in terms of hidden-sector correlation functions for generic holomorphic scalar portals. The solutions, which are valid irrespective of the hidden-sector dynamics, are approximated with the help of the ...
Jean-François Fortin +1 more
doaj +1 more source
Light threshold effects in supersymmetric grand unified theories [PDF]
, 1993 Supersymmetric Grand Unified Theories have a rich spectrum of particles barely heavier than the intermediate vector bosons. As their non-supersymmetric counterparts, they lead to many relations among low energy observables. But the precise form of the predictions is modified by the extended spectrum.
Faraggi, A. E., Grinstein, B.
openaire +2 more sources
Bands and gaps in Nekrasov partition function
Journal of High Energy Physics, 2018 We discuss the effective twisted superpotentials of 2d N $$ \mathcal{N} $$ = (2, 2) theories arising upon the reduction of 4d N $$ \mathcal{N} $$ = 2 gauge theories on the Ω-deformed cigar-like geometry.
A. Gorsky, A. Milekhin, N. Sopenko
doaj +1 more source
Soft bootstrap and supersymmetry
Journal of High Energy Physics, 2019 The soft bootstrap is an on-shell method to constrain the landscape of effective field theories (EFTs) of massless particles via the consistency of the low-energy S-matrix.
Henriette Elvang +3 more
doaj +1 more source
Effects of additional Higgses in supersymmetric grand unified theories
Physics Letters B, 1982 Abstract We consider modifications of the minimal supersymmetric SU(5) grand unified model. With the additional Higgses 10 + 10 , the theory may be modified so that the proton decays dominantly via the conventional mode p→e+π with the lifetime πp=(0.04-710)×1030yr, and sin2θW=0.222±0.003.
Yuji Igarashi +2 more
openaire +1 more source