Results 21 to 30 of about 36,776 (204)

Nonperturbative Effects on the String World Sheet (Ii)

Nuclear Physics B, 1987
We show that the space-time superpotential, which is known to receive no string theoretic corrections in finite orders in α′, is modified by world-sheet instantons. This has a number of interesting consequences for the physics of compactification schemes which lead to low-energy supersymmetry.
M. Dine, N. Seiberg, X.-G. Wen, E. Witten   +3 more
openaire   +3 more sources

Determination of HQET nonperturbative matrix elements with renormalon subtraction using Fourier transform [PDF]

EPJ Web of Conferences, 2022
As higher order perturbative series are available, it is becoming necessary to include nonperturbative effects in QCD calculations using the OPE. In order to systematically determine nonperturbative effects and to incorporate them into theoretical ...
Takaura Hiromasa
doaj   +1 more source

Helically Magnetized Plasma: From Photonic Fermi-Arc Metal to Chirality-Free Uniaxial Medium. [PDF]

Nanophotonics
A helically modulated magnetic field in magnetized plasma realizes a photonic Fermi‐arc metal, enabling full analytical tracking of Weyl node evolution. As modulation strengthens, opposing‐chirality Fermi arcs hybridize and recombine, yielding a chirality‐free uniaxial optical medium without conventional node annihilation.
Huang W, Hou J, Wang M, Zhou L, Ma S.
europepmc   +2 more sources

Density-functional tight binding meets Maxwell: unraveling the mysteries of (strong) light-matter coupling efficiently. [PDF]

Nanophotonics
Abstract Controlling chemical and material properties through strong light–matter coupling in optical cavities has gained considerable attention over the past decade. However, the underlying mechanisms remain insufficiently understood, and a significant gap persists between experimental observations and theoretical descriptions.
Sidler D, Bustamante CM, Bonafé FP, Ruggenthaler M, Sukharev M, Rubio A.   +5 more
europepmc   +2 more sources

Nonperturbative Effects on Nucleation [PDF]

Physical Review Letters, 1996
Latex, 8 pages, 2 postscript figures, submitted to PRL. Also available at http://fnas08.fnal.gov/
Gleiser, Marcelo, Heckler, Andrew F.
openaire   +3 more sources

Scattering amplitudes and electromagnetic horizons

Journal of High Energy Physics, 2023
We consider the scattering of charged particles on particular electromagnetic fields which have properties analogous to gravitational horizons. Classically, particles become causally excluded from regions of spacetime beyond a null surface which we ...
Anton Ilderton, William Lindved
doaj   +1 more source

Nonperturbative effect in threshold resummation [PDF]

Journal of High Energy Physics, 2009
JHEP06(2009 ...
Li, Chong Sheng, Li, Zhao, Yuan, C. -P.
openaire   +2 more sources

CFT description of BH’s and ECO’s: QNMs, superradiance, echoes and tidal responses

Journal of High Energy Physics, 2022
Using conformal field theory and localization tecniques we study the propagation of scalar waves in gravity backgrounds described by Schrödinger like equations with Fuchsian singularities.
Dario Consoli, Francesco Fucito, Jose Francisco Morales, Rubik Poghossian   +3 more
doaj   +1 more source

Critical behavior of the 2d scalar theory: resumming the N8LO perturbative mass gap

Journal of High Energy Physics, 2021
We apply the optimized perturbation theory (OPT) to resum the perturbative series describing the mass gap of the bidimensional ϕ 4 theory in the ℤ2 symmetric phase.
Gustavo O. Heymans, Marcus Benghi Pinto
doaj   +1 more source

Remembrance of things past

Journal of High Energy Physics, 2023
Nonlinear sigma models on de Sitter background have proved a useful prototype for quantum gravity in summing the large logarithms which arise from loop corrections.
R. P. Woodard, B. Yesilyurt
doaj   +1 more source