Results 91 to 100 of about 11,120,519 (277)
1 PHz of Coherent Bandwidth from a Compact Fiber Device
Laser &Photonics Reviews, EarlyView.A coherent comb spectrum with an unprecedented bandwidth of 1 PHz, spanning from the deep ultraviolet (280 nm) to the mid‐infrared (2700 nm), is generated by a compact fiber device. The integrated, novel pulse purification technology enables broadband dispersion control and the synthesis of low‐noise, single‐cycle near‐infrared pulses with a clean ...
Sarah R. Hutter +4 more
wiley +1 more source
Holomorphic field theories and higher algebra
Bulletin of the London Mathematical Society, EarlyView.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
Cosmological constant and Euclidean space from nonperturbative quantum torsion
, 2014 Heisenberg's nonperturbative quantization technique is applied to the nonpertrubative quantization of gravity. An infinite set of equations for all Green's functions is obtained. An approximation is considered where: (a) the metric remains as a classical
Heisenberg W. +3 more
core +1 more source
Hadronic corrections to μ-e scattering at NNLO with space-like data
Journal of High Energy Physics, 2019 The Standard Model prediction for μ-e scattering at Next-to-Next-to-Leading Order (NNLO) contains non-perturbative QCD contributions given by diagrams with a hadronic vacuum polarization insertion in the photon propagator.
Matteo Fael
doaj +1 more source
Derivative corrections to the Heisenberg-Euler effective action
Journal of High Energy Physics, 2021 We show that the leading derivative corrections to the Heisenberg-Euler effective action can be determined efficiently from the vacuum polarization tensor evaluated in a homogeneous constant background field.
Felix Karbstein
doaj +1 more source
Nonperturbative effects in heavy quarkonia
, 1994 An effective hamiltonian for heavy quarkonia is derived from QCD by separating gluonic fields in background and quantum fields and neglecting anharmonic contributions. Mesonic states with nonperturbative gluonic components are constructed. These states are invariant under gauge changes of the background fields and form an orthogonal basis.
Nunes, C. A. A. +3 more
openaire +2 more sources
Communications on Pure and Applied Mathematics, Volume 78, Issue 10, Page 2001-2118, October 2025.Abstract We analyse and clarify the finite‐size scaling of the weakly‐coupled hierarchical n$n$‐component |φ|4$|\varphi |^4$ model for all integers n≥1$n \ge 1$ in all dimensions d≥4$d\ge 4$, for both free and periodic boundary conditions. For d>4$d>4$, we prove that for a volume of size Rd$R^{d}$ with periodic boundary conditions the infinite‐volume ...
Emmanuel Michta +2 more
wiley +1 more source
, 2012 It is offered that $F(R)-$modified gravities can be considered as nonperturbative quantum effects arising from Einstein gravity. It is assumed that nonperturbative quantum effects gives rise to the fact that the connection becomes incompatible with the ...
Buchbinder I. L. +2 more
core +1 more source
Electron-electron interaction effects in quantum point contacts [PDF]
, 2009 We consider electron-electron interaction effects in quantum point contacts on the first quantization plateau, taking into account all scattering processes.
De Martino, A. +4 more
core +2 more sources
Infrared renormalon contributions in gluon TMD at small-x
Nuclear Physics B, 2020 The nonperturbative uncertainties from the infrared renormalons in the (color dipole) gluon distribution is estimated. It is shown that non-linear saturation effects at small-x shift the first IR pole at the Borel plane from 2/β2 to 1/β2.
Nahid Vasim, Raktim Abir
doaj +1 more source