Results 71 to 80 of about 33,765 (166)

The DNA of Calabi–Yau Hypersurfaces

Fortschritte der Physik, Volume 74, Issue 2, February 2026.
Abstract Genetic Algorithms are implemented for triangulations of four‐dimensional reflexive polytopes, which induce Calabi–Yau threefold hypersurfaces via Batyrev's construction. These algorithms are shown to efficiently optimize physical observables such as axion decay constants or axion–photon couplings in string theory compactifications.
Nate MacFadden, Andreas Schachner, Elijah Sheridan   +2 more
wiley   +1 more source

Quark and gluon contents of a lepton at high energies

Journal of High Energy Physics, 2022
In high-energy leptonic collisions, such as at a multi-TeV muon collider, the collinear splittings of the electroweak (EW) gauge bosons and leptons are the dominant phenomena, and the scattering processes should thus be formulated in terms of the EW ...
Tao Han, Yang Ma, Keping Xie
doaj   +1 more source

Simple Atoms, Quantum Electrodynamics and Fundamental Constants

, 2003
This review is devoted to precision physics of simple atoms. The atoms can essentially be described in the framework of quantum electrodynamics (QED), however, the energy levels are also affected by the effects of the strong interaction due to the ...
Karshenboim, Savely G.
core   +2 more sources

Towards a precision calculation of the effective number of neutrinos N_eff in the Standard Model. Part II. Neutrino decoupling in the presence of flavour oscillations and finite-temperature QED [PDF]

, 2021
Jack Bennett, Gilles Buldgen, P.F. de Salas, Marco Drewes, Stefano Gariazzo, S. Pastor, Yvonne Y. Y. Wong   +6 more
openalex   +1 more source

Software Framework for Optically Accessible Quantum Memories Using Group‐IV Color Centers in Diamond

Advanced Quantum Technologies, Volume 9, Issue 2, February 2026.
Precise descriptions of quantum components are essential for accelerating progress in quantum technology. This work presents a versatile quantum memory designed for reliable operation and broad applicability. Our main contribution is the integration of this memory into a standardized software framework, enabling consistent analysis, comparison, and ...
Yannick Strocka, Mohamed Belhassen, Tim Schröder, Gregor Pieplow   +3 more
wiley   +1 more source

Complete Tenth-Order QED Contribution to the Muon g-2

, 2012
We report the result of our calculation of the complete tenth-order QED terms of the muon g-2. Our result is a_\mu^{(10)} = 753.29 (1.04) in units of (\alpha/\pi)^5, which is about 4.5 s.d. larger than the leading-logarithmic estimate 663 (20).
Aoyama, Tatsumi, Hayakawa, Masashi, Kinoshita, Toichiro, Nio, Makiko   +3 more
core   +1 more source

Transition energy and lifetime for the ground state hyperfine splitting of high Z lithiumlike ions [PDF]

, 1997
The ground state hyperfine splitting values and the transition probabilities between the hyperfine structure components of high Z lithiumlike ions are calculated in the range $Z=49-83$.
A. Bohr, A. Bohr, A. N. Artemyev, A. N. Artemyev, C. Froese Fisher, G. Fricke, H. de Vries, H. Persson, I. I. Sobelman, I. I. Tupitsyn, I. Klaft, I. P. Grant, J. R. Crespo Lopez-Urrutia, L. K. Peker, M. B. Shabaeva, M. B. Shabaeva, M. Finkbeiner, M. Le Bellac, M. Tomaselli, M. Tomaselli, M. Tomaselli, M. Tomaselli, M. Tomaselli, N. J. Snyderman, O. M. Zherebtsov, P. Beiersdorfer, P. Raghavan, S. A. Blundell, S. M. Schneider, S. M. Schneider, T. Kühl, V. A. Yerokhin, V. A. Yerokhin, V. M. Shabaev, V. M. Shabaev, V. M. Shabaev, V. M. Shabaev, V. M. Shabaev, V. M. Shabaev, V. M. Shabaev, V. M. Shabaev, W. R. Johnson, W. R. Johnson   +42 more
core   +2 more sources

Control of Open Quantum Systems via Dynamical Invariants

Advanced Quantum Technologies, Volume 9, Issue 2, February 2026.
Dynamical invariants are used to reverse‐engineer control fields for open quantum systems described by time‐dependent Lindblad master equations. By minimizing an analytic leakage functional, the protocol dynamically steers the state along an effectively decoherence‐free path without costly iterative propagation.
Loris M. Cangemi, Hilario Espinós, Ricardo Puebla, Erik Torrontegui, Amikam Levy   +4 more
wiley   +1 more source

Extracting the chiral anomaly from e + e − → 3π

Journal of High Energy Physics
The strength of the interaction of three pions and a photon, F 3π is predicted by the axial anomaly in terms of the pion decay constant, a relation that is frequently used to constrain low-energy radiative processes involving pions, but only tested ...
Martin Hoferichter, Bai-Long Hoid, Bastian Kubis   +2 more
doaj   +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