Results 121 to 130 of about 1,414,394 (291)

The 10 m collimated Rowland spectrometer at the MAX IV Veritas beamline

Journal of Synchrotron Radiation, EarlyView.
The design and performance of a soft X‐ray RIXS instrument at the Veritas beamline at the MAX IV laboratory in Lund, Sweden, are presented.A grazing‐incidence Rowland spectrometer with a collimating element for resonant inelastic soft X‐ray scattering at the Veritas beamline at MAX IV, Lund, Sweden, is presented.
Marcus Agåker, Carl-Johan Englund, Victor Ekholm, Ludvig Kjellsson, Peter Sjöblom, Louisa Pickworth, Johan Söderström, Niklas Johansson, Anirudha Ghosh, Takashi Tokushima, Marco Caputo, Johan Forsberg, Gábor Felcsuti, Pierre Fredriksson, Suleyman Malki, Nial Wassdahl, Conny Såthe, Jan-Erik Rubensson   +17 more
wiley   +1 more source

Offshell quantum electrodynamics

Journal of Physics: Conference Series, 2013
More than twenty years have passed since the threads of the `proper time formalism' in covariant classical and quantum mechanics were brought together to construct a canonical formalism for the relativistic mechanics of many particles. Drawing on the work of Fock, Stueckelberg, Nambu, Schwinger, and Feynman, the formalism was raised from the status of ...
Lawrence P. Horwitz, Lawrence P. Horwitz, Martin Land   +2 more
openaire   +3 more sources

Designing Kerr interactions using multiple superconducting qubit types in a single circuit

New Journal of Physics, 2018
The engineering of Kerr interactions is of great interest for processing quantum information in multipartite quantum systems and for investigating many-body physics in a complex cavity-qubit network.
Matthew Elliott, Jaewoo Joo, Eran Ginossar   +2 more
doaj   +1 more source

Hyperfine structure of S-states in muonic deuterium

, 2014
On the basis of quasipotential method in quantum electrodynamics we calculate corrections of order $\alpha^5$ and $\alpha^6$ to hyperfine structure of S-wave energy levels of muonic deuterium.
Faustov, R. N., Martynenko, A. P., Martynenko, G. A., Sorokin, V. V.   +3 more
core   +2 more sources

The simplicity of physical laws

Noûs, EarlyView.
Abstract Physical laws are strikingly simple, yet there is no a priori reason for them to be so. I propose that nomic realists—Humeans and non‐Humeans—should recognize simplicity as a fundamental epistemic guide for discovering and evaluating candidate physical laws.
Eddy Keming Chen
wiley   +1 more source

Transverse recoil imprinted on free-electron radiation

Nature Communications
Phenomena of free-electron X-ray radiation are treated almost exclusively with classical electrodynamics, despite the intrinsic interaction being that of quantum electrodynamics. The lack of quantumness arises from the vast disparity between the electron
Xihang Shi, Lee Wei Wesley Wong, Sunchao Huang, Liang Jie Wong, Ido Kaminer   +4 more
doaj   +1 more source

Triviality of quantum electrodynamics revisited

, 2017
Quantum electrodynamics is considered to be a trivial theory. This is based on a number of evidences, both numerical and analytical. One of the strong indications for triviality of QED is the existence of the Landau pole for the running coupling. We show
Djukanovic, D., Gegelia, J., Meißner, Ulf-G.   +2 more
core   +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

Molecular Excitons and Plasmons in Acenes and Their Radical Cations

Journal of Computational Chemistry, Volume 46, Issue 23, 05 September 2025.
The electronic structure and the physical character of the energetically low‐lying excited electronic states determine the applicability of acenes and their radical cations in organic electronics. Here we employ the intuitive picture of molecular excitons and plasmons to classify these states and their properties with increasing lengths of the acenes ...
Anna M. Weidlich, Andreas Dreuw
wiley   +1 more source

Galileo's ship and the relativity principle

Noûs, Volume 59, Issue 3, Page 585-611, September 2025.
Abstract It is widely acknowledged that the Galilean Relativity Principle, according to which the laws of classical systems are the same in all inertial frames in relative motion, has played an important role in the development of modern physics. It is also commonly believed that this principle holds the key to answering why, for example, we do not ...
Sebastián Murgueitio Ramírez
wiley   +1 more source