Results 61 to 70 of about 13,252 (269)

Mixed state entanglement for holographic axion model

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We study the mixed state entanglement in a holographic axion model. We find that the holographic entanglement entropy (HEE), mutual information (MI) and entanglement of purification (EoP) exhibit very distinct behaviors with system parameters.
Yi-fei Huang   +4 more
doaj   +1 more source

Holographic Inflation

open access: yesJournal of High Energy Physics, 2004
19 pages in phyzzx ...
openaire   +2 more sources

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

open access: yesAdvanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang   +3 more
wiley   +1 more source

Novel Non‐Cytotoxic Acylphosphinates and Acylphosphine Oxides Photoinitiators

open access: yesAngewandte Chemie, EarlyView.
Novel acylphosphine oxide (APO) and acylphosphinate photoinitiators based on DPO and DOPO were designed to investigate structure–property relationships including photochemical performance, polymerization efficiency and cytotoxicity. While DPO derivatives showed excellent reactivity, DOPO‐based systems also displayed good efficiency and significantly ...
Jiansong Yin   +13 more
wiley   +2 more sources

Complexity growth in Gubser–Rocha models with momentum relaxation

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
The Einstein–Maxwell–Axion–Dilaton (EMAD) theories, based on the Gubser–Rocha (GR) model, are very interesting in holographic calculations of strongly correlated systems in condensed matter physics.
H. Babaei-Aghbolagh   +3 more
doaj   +1 more source

Interference and diffraction analysis of holographic gratings using the Finite-Difference Time-Domain method [PDF]

open access: yes, 2010
The Finite-Difference Time-Domain method (FDTD) is based on a time-marching algorithm that has proven accurate in predicting microwave scattering from complicated objects.
Pérez Molina, Manuel   +4 more
core  

Super‐Resolution and High‐Data‐Density Acoustic Meta‐Hologram via Amplitude and Phase Coupling

open access: yesAdvanced Science, EarlyView.
A super‐resolution acoustic meta‐hologram utilizes amplitude‐phase coupling under energy conservation constraints to overcome the traditional diffraction limit. This conceptually advanced approach achieves high‐fidelity acoustic field reconstruction and dense information transmission, unlocking new potentials for high‐resolution acoustic imaging and ...
Xiao Guo   +15 more
wiley   +1 more source

Holographic horizons [PDF]

open access: yesPhysical Review D, 2012
We examine how the (2+1)-dimensional AdS space is covered by the Fefferman-Graham system of coordinates for Minkowski, Rindler and static de Sitter boundary metrics. We find that, in the last two cases, the coordinates do not cover the full AdS space.
openaire   +3 more sources

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

open access: yesAdvanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe   +4 more
wiley   +1 more source

New Zealand and the holographic will

open access: yes, 2016
A holographic will is a document detailing the disposition of property, handwritten by its author. No other formalities, such as witnesses, the testator’s signature, or dating, are required in order for the holographic will to be considered valid ...
Robbins, Nicola
core   +1 more source

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