Results 101 to 110 of about 73,082 (280)

Sphere Theorems for σ_k-Einstein Manifolds

Axioms
A problem that geometers have always been concerned with is when a closed manifold is isometric to a round sphere. A classical result shows that a closed locally conformally flat Einstein manifold is always isometric to a quotient of a round sphere.
Jingyang Zhong, Xinran Mu
doaj   +1 more source

Reproducing the Effects of Quantum Deformation in the Undeformed Jaynes‐Cummings Model

Advanced Quantum Technologies, EarlyView.
The inverse problem approach, where atomic probabilities are modulated according to a time‐dependent coupling, is studied for the Jaynes‐Cummings (JC) model. In particular, emphasis is placed on how to reproduce the effects of quantum deformation in a non‐deformed JC model.
Thiago T. Tsutsui, Antonio S. M. de Castro, Fabiano M. Andrade   +2 more
wiley   +1 more source

Super Quasi-Einstein Warped Products Manifolds with Respect to Affine Connections

Axioms
In this paper, we investigate warped products on super quasi-Einstein manifolds under affine connections. We explore their fundamental properties, establish conditions for their existence, and prove that these manifolds can also be nearly quasi-Einstein ...
Mohd Vasiulla, Mohabbat Ali, Meraj Ali Khan, Ibrahim Aldayel   +3 more
doaj   +1 more source

Dynamic Continuous Variable Quantum Key Distribution for Securing a Future Global Quantum Network

Advanced Quantum Technologies, EarlyView.
The article explores securing a dynamic global quantum network using continuous variable QKD, proposing a unified three‐layer network architecture for integrating existing QKD networks. It evaluates secret key rates across various channels and introduces the link capacity as a metric for determining the optimum path for secret key distribution in a ...
Mikhael T. Sayat, Sebastian P. Kish, Ping Koy Lam, Nicholas J. Rattenbury, John E. Cater   +4 more
wiley   +1 more source

7D supersymmetric Yang-Mills on curved manifolds

Journal of High Energy Physics, 2017
We study 7D maximally supersymmetric Yang-Mills theory on curved manifolds that admit Killing spinors. If the manifold admits at least two Killing spinors (Sasaki-Einstein manifolds) we are able to rewrite the supersymmetric theory in terms of a ...
Konstantina Polydorou, Andreas Rocén, Maxim Zabzine   +2 more
doaj   +1 more source

Tailored Growth of Transition Metal Dichalcogenides’ Monolayers by Chemical Vapor Deposition

Small, EarlyView.
Here, results on the tailored growth of various 2D semiconductors’ monolayers of transition metal dichalcogenides are presented using chemical vapor deposition techniques. Basic electronic, photonic and optoelectronic properties of the grown quantum materials are studied by high‐resolution microscopy and spectroscopy techniques and are analyzed for ...
Andrey Turchanin, Antony George
wiley   +1 more source

Cationic Polyelectrolyte Adsorption onto Anionic Nanoparticles Analyzed with Frequency‐Domain Scanning Fluorescence Correlation Spectroscopy

Small Methods, EarlyView.
A small‐circle scanning fluorescence correlation spectroscopy (sFCS) technique is presented using acousto‐optical laser scanning and frequency‐domain fitting. Validated with simulations and experiments, sFCS investigates cationic polyelectrolyte adsorption onto anionic nanoparticles, revealing stable complexes and size increases with polymer mass ...
Lucas Oorlynck, Lenny Van Daele, Alina Myslovska, Sarah Goddaer, Sumit Sumit, Yera Ye. Ussembayev, Katrien Remaut, Iwan Moreels, Peter Dubruel, Filip Strubbe   +9 more
wiley   +1 more source

On Riemannian warped-twisted product submersions

AIMS Mathematics
In this paper, we introduce the concepts of Riemannian warped-twisted product submersions and examine their fundamental properties, including total geodesicity, total umbilicity and minimality.
Richa Agarwal, Fatemah Mofarreh, Sarvesh Kumar Yadav, Shahid Ali, Abdul Haseeb   +4 more
doaj   +1 more source

Time‐Domain Visualization of Electron‐Phonon Coupling in Nanographenes

Small Methods, EarlyView.
Impulsive vibrational spectroscopy, Raman spectroscopy, and density functional theory calculations are gathered together to unveil elusive low‐frequency collective vibrational modes in dibenzo[hi,st]ovalene nanographenes, enabling the detailed comparison between vibrational modes in derivatives with different peripheral groups.
Rafael Muñoz‐Mármol, Saurav Raj, Mattia Russo, Gianluca Serra, Hao Zhao, Giacomo Bassi, Andrea Lucotti, Francesco Scotognella, Giulio Cerullo, Guglielmo Lanzani, Matteo Tommasini, Margherita Maiuri, Akimitsu Narita, Giuseppe Maria Paternò   +13 more
wiley   +1 more source

Multiple Reflections on Huygens' Principle

Geophysical Prospecting, EarlyView.
ABSTRACT According to Huygens' principle, all points on a wave front act as secondary sources emitting spherical waves and the envelope of these spherical waves forms a new wave front. In the mathematical formulation of Huygens' principle, the waves emitted by the secondary sources are represented by Green's functions.
Kees Wapenaar
wiley   +1 more source