Results 71 to 80 of about 9,112 (235)

Deterministic Nanofabrication of Quantum Dot ‐ Circular Bragg Grating Resonators with High Process Yield Using In Situ Electron Beam Lithography

open access: yesAdvanced Quantum Technologies, EarlyView.
We demonstrate that deterministic in situ electron‐beam lithography enables precise integration of single quantum dots into compact circular Bragg grating resonators, achieving high extraction efficiency with only 3–4 rings. Across 95 devices, the approach delivers >$>$90% alignment yield and bright, narrow‐linewidth single‐photon emission, providing a
Avijit Barua   +7 more
wiley   +1 more source

Strong and Weak Coupling Nanophysics with Free Electron Beams

open access: yesAdvanced Optical Materials, Volume 13, Issue 34, December 2, 2025.
This paper focuses on a short review of the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in free electron beam spectroscopies. In particular, plasmon–plasmon, plasmon–exciton, and plasmon–phonon couplings are reviewed. Abstract The work of Luis M.
Mathieu Kociak   +6 more
wiley   +1 more source

Transverse recoil imprinted on free-electron radiation

open access: yesNature 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   +4 more
doaj   +1 more source

Hundreds of Nanocoulomb Electron Acceleration Driven by Multipetawatt Laser in Subcritical Density Plasmas

open access: yesAdvanced Photonics Research, Volume 6, Issue 12, December 2025.
Electron acceleration using multipetawatt femtosecond lasers and subcritical density plasmas achieves a maximum charge of 245 nC, with an injection rate of up to 100 nC per picosecond. The charge variation with plasma density, initially increasing and then decreasing, arises from the competition between the injection of multiple plasma waves and laser ...
Xi‐Chen Hu   +9 more
wiley   +1 more source

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

open access: yesNew 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   +2 more
doaj   +1 more source

Offshell quantum electrodynamics

open access: yesJournal 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 ...
Land, M. C., Horwitz, L. P.
openaire   +2 more sources

Relational Bundle Geometric Formulation of Non‐Relativistic Quantum Mechanics

open access: yesFortschritte der Physik, Volume 73, Issue 12, December 2025.
Abstract A bundle geometric formulation of non‐relativistic many‐particles Quantum Mechanics is presented. A wave function is seen to be a C$\mathbb {C}$‐valued cocyclic tensorial 0‐form on configuration space‐time seen as a principal bundle, while the Schrödinger equation flows from its covariant derivative, with the action functional supplying a ...
J. T. François, L. Ravera
wiley   +1 more source

SOLEY: A Package for Optical and Extended Detailed Balance Model for Photovoltaic Device Simulation

open access: yesSolar RRL, Volume 9, Issue 24, December 2025.
SOLEY is a graphical user interface (GUI)‐based simulation package for photovoltaic cells. It combines optical modeling using the Transfer Matrix Method, and device modeling using an extension of the detailed balance model, which considers various recombination mechanisms, including Shockley–Read–Hall.
Zacharie Jehl Li‐Kao
wiley   +1 more source

Optical whispering gallery mode resonators: analysing thermo‐optic tuning in a silicon sphere

open access: yesJournal of the Royal Society of New Zealand, Volume 55, Issue 6, Page 1732-1756, December 2025.
ABSTRACT In this work, we discuss and experimentally investigate the whispering gallery modes (WGMs) in a 500 μm radius silicon sphere. We begin by reviewing the basics of WGM resonators, followed by simulations and experimental results obtained with the aforementioned silicon spherical WGM resonator. The recorded WGM signatures in the transmission and
Farhan Azeem   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy