Results 31 to 40 of about 3,898 (217)

Transmuting off-shell CHY integrals in the double-cover framework

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In this paper, by defining off-shell amplitudes as off-shell CHY integrals, and redefining the longitudinal operator, we demonstrate that the differential operators which link on-shell amplitudes for a variety of theories together link off-shell ...
Kang Zhou, Guo-Jun Zhou
doaj   +1 more source

Thin‐film lithium niobate photonics: Frontiers in millimeter‐wave and terahertz generation and integrated applications

open access: yesInfoScience, EarlyView.
With the advancement of 6G communications, high‐precision radar, and advanced imaging technologies, there is a growing demand for compact, high‐performance light sources capable of generating high‐frequency radio waves (millimeter‐wave and terahertz waves). This article systematically introduces how to efficiently generate these high‐frequency waves on
Jianfeng Xiong   +8 more
wiley   +1 more source

Granice fizyki w kosmologii

open access: yesZagadnienia Filozoficzne w Nauce, 2015
The message is that physics has an „outward bound” of scientific inquiry in the field of cosmology. I present it in the historical development. Physics and astronomy, developing since the seventeenth century, inherited from the early Greek philosophers ...
Leszek M. Sokołowski
doaj  

Quasinormal modes of a d-dimensional regular black hole featuring an integrable singularity

open access: yesEuropean Physical Journal C: Particles and Fields
In this paper, we exhaustively investigate the quasinormal modes (QNMs) of a probe scalar field over a d-dimensional regular black hole (BH) characterized by the parameter A.
Zhongzhinan Dong   +3 more
doaj   +1 more source

Do cultural taboos regulate hunting in transitioning Indigenous communities? The case of the Idu Mishmi of Northeast India

open access: yesPeople and Nature, EarlyView.
Abstract There is rising recognition of resource‐use rights of Indigenous Peoples and Local Communities (IPLCs) within wildlife conservation. Historically, sociocultural institutions ensured wildlife sustainability in many IPLC areas. However, the future viability of such institutions is uncertain as IPLCs change in response to external pressures and ...
Sahil Nijhawan   +5 more
wiley   +1 more source

Gravitational odd-parity perturbation of a Horndeski hairy black hole: quasinormal mode and parameter constraint

open access: yesEuropean Physical Journal C: Particles and Fields
During the binary black hole coalescence, gravitational waves emitted at the ringdown stage can be well described by black hole perturbation theory, where the quasinormal modes (QNMs) become the important ingredient in modeling the pattern waveform.
Zhen-Hao Yang   +3 more
doaj   +1 more source

Black hole evaporation in Hořava–Lifshitz gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Hořava–Lifshitz (HL) gravity was formulated in hope of solving the non-renormalization problem in Einstein gravity and the ghost problem in higher derivative gravity theories by violating Lorentz invariance.
Hao Xu, Yen Chin Ong
doaj   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

open access: yesSustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos   +2 more
wiley   +1 more source

Probing loop quantum effects through solar system experiments: observational signatures and parameter constraints

open access: yesEuropean Physical Journal C: Particles and Fields
This study investigates quantum gravity effects within the framework of an effective loop quantum gravity black hole (LQG-BH) model parameterized by $$\zeta $$ ζ , utilizing precision measurements from solar system experiments and astrophysical ...
Wen-Juan Ai   +3 more
doaj   +1 more source

Photon region and shadow of a rotating 5D black string

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
To explore the possible clues for the extra dimension from the Event Horizon Telescope (EHT) observations, we study the shadow of the rotating 5D black string in General Relativity (GR).
Zi-Yu Tang   +3 more
doaj   +1 more source

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