Results 131 to 140 of about 6,968,010 (306)

Inferring the cosmological constant in early Universe only by gravitational waves

Journal of High Energy Physics
Gravitational waves (GWs) from compact binary coalescence (CBC) can directly determine the luminosity distance but usually can not obtain information about the redshift. This assumes that the GW source is at the flat background.
Song Li, Wen-Biao Han
doaj   +1 more source

Anisotropic Cosmological Models with Two Fluids

Advances in High Energy Physics, 2018
Anisotropic dark energy cosmological models have been constructed in a Bianchi V space-time, with the energy momentum tensor consisting of two noninteracting fluids, namely, bulk viscous fluid and dark energy fluid.
B. Mishra, Pratik P. Ray, S. K. J. Pacif
doaj   +1 more source

Timing the Sacred: A Multi‐Step Chronological Framework for the Llullaillaco Inca Burial

Archaeometry, EarlyView.
ABSTRACT Absolute radiocarbon dating offers high precision, but its application to historical contexts, such as the Inca civilization, requires a rigorous methodological approach. This research examines methods to enhance chronological accuracy through a case study of artifacts from the Llullaillaco Capacocha sacrifice.
Dominika Sieczkowska‐Jacyna, Gabriela Recagno Browning, Mario Bernaski, Fernanda Zigaran, Maksymilian Jędrzejowski, Jacek Pawlyta, Andrzej Rakowski, Johan Reinhard, Sturt W. Manning, Dagmara Socha   +9 more
wiley   +1 more source

Cluster algebras for cosmological correlators

Journal of High Energy Physics
In this paper,we explore the cluster algebras for symbol letters or singularities of cosmological correlators in a conformally coupled scalar field theory. We show that the symbol letters for tree-level n-site ladder cosmological correlators are governed
Pouria Mazloumi, Xiaofeng Xu
doaj   +1 more source

Geomagnetic Intensity of Hellenistic Pottery and Stamped Rhodian Wine Amphorae From Jerusalem

Archaeometry, EarlyView.
ABSTRACT Stamped amphora handles produced on Rhodes during the Hellenistic period are well suited for archaeointensity studies because they often bear the names of annually appointed magistrates (eponyms) and fabricants, allowing dating to narrow time intervals.
Yael Hochma, Lisa Tauxe, Debora Sandhaus, Oded Lipschits, Erez Ben‐Yosef   +4 more
wiley   +1 more source

Spontaneous collapse models lead to the emergence of classicality of the Universe

Journal of High Energy Physics
Assuming that Quantum Mechanics is universal and that it can be applied over all scales, then the Universe is allowed to be in a quantum superposition of states, where each of them can correspond to a different space-time geometry.
José Luis Gaona-Reyes, Lucía Menéndez-Pidal, Mir Faizal, Matteo Carlesso   +3 more
doaj   +1 more source

Topology‐based Visual Analysis of Hydrothermal Plumes

Computer Graphics Forum, EarlyView.
Abstract Hydrothermal plumes are turbulent structures of intense heat and mineral smoke that rise and disperse into the deep ocean. Existing models generally characterize these systems as a single axisymmetric plume originating from a point source. However, this assumption breaks down in weakly venting, spatially distributed systems, where low‐flux ...
Adhitya Kamakshidasan, Tushar Jain, Karen Bemis, Valerio Pascucci   +3 more
wiley   +1 more source

Emergent time and more from wavefunction collapse in general relativity

Journal of High Energy Physics
In this paper, we further develop a recently proposed theory of time based on wavefunction collapse in general relativity. It is based on the postulations that quantum states, which violate the momentum and Hamiltonian constraints, represent instances of
Sung-Sik Lee
doaj   +1 more source

The clustering of galaxies in hierarchical galaxy formation models [PDF]

, 2010
Galaxy clustering encodes information about the values of cosmological parameters and also about the physical processes behind galaxy formation and evolution. The GALFORM semi-analytical model is the theoretical approach we used to model galaxy formation.
KIM, HAN,SIK, Kim, Han Sik
core  

Scalable Computation of Topological Abstractions for Scalar Data

Computer Graphics Forum, EarlyView.
Abstract Topological data analysis has become an important tool for large scale scalar data analysis and visualization, efficiently extracting the inherent structure and features of interest of the data. However, with growing dataset sizes and complexity, it is increasingly becoming infeasible to compute topological abstractions of interest in serial ...
M. Will, J. Lukasczyk, J. Tierny, A. Gyulassy, G. H. Weber, H. Carr, C. Garth   +6 more
wiley   +1 more source