Results 1 to 10 of about 99,723 (258)

Spacetime Gaussian Feature Splatting for Real-Time Dynamic View Synthesis [PDF]

open access: yesComputer Vision and Pattern Recognition, 2023
Novel view synthesis of dynamic scenes has been an intriguing yet challenging problem. Despite recent advancements, simultaneously achieving high-resolution photorealistic results, real-time rendering, and compact storage remains a formidable task.
Zhan Li, Zhang Chen, Zhong Li, Yi Xu
semanticscholar   +1 more source

MotionRNN: A Flexible Model for Video Prediction with Spacetime-Varying Motions [PDF]

open access: yesComputer Vision and Pattern Recognition, 2021
This paper tackles video prediction from a new dimension of predicting spacetime-varying motions that are incessantly changing across both space and time. Prior methods mainly capture the temporal state transitions but overlook the complex spatiotemporal
Haixu Wu   +3 more
semanticscholar   +1 more source

The Standard-Model Extension [PDF]

open access: yesEPJ Web of Conferences, 2023
Lorentz and CPT symmetry represent cornerstones of our present understanding of nature, but may be violated in various theoretical approaches to underlying physics.
Lehnert Ralf
doaj   +1 more source

Investigations of strong cosmic censorship in 3-dimensional black strings

open access: yesJournal of High Energy Physics, 2022
Investigating the quasinormal modes of a massive scalar field on the 3-dimensional black string (3dBS), we study the strong cosmic censorship (SCC) conjecture for the 3dBS in the T-dual relationship with the 3-dimensional rotating anti-de-Sitter (BTZ ...
Jeongwon Ho, Wontae Kim, Bum-Hoon Lee
doaj   +1 more source

Postselection-Free Entanglement Dynamics via Spacetime Duality. [PDF]

open access: yesPhysical Review Letters, 2020
The dynamics of entanglement in "hybrid" nonunitary circuits (for example, involving both unitary gates and quantum measurements) has recently become an object of intense study.
Matteo Ippoliti, V. Khemani
semanticscholar   +1 more source

Einstein-Gauss-Bonnet Gravity in Four-Dimensional Spacetime. [PDF]

open access: yesPhysical Review Letters, 2019
In this Letter we present a general covariant modified theory of gravity in D=4 spacetime dimensions which propagates only the massless graviton and bypasses Lovelock's theorem.
D. Glavan, Chunshan Lin
semanticscholar   +1 more source

Gravitational lensing in the Simpson-Visser black-bounce spacetime in a strong deflection limit [PDF]

open access: yesPhysical Review D, 2020
A Simpson-Visser spacetime has two non-negative parameters $a$ and $m$ and its metric is correspond with (i) a Schwarzschild metric for $a=0$ and $m\ensuremath{\ne}0$, (ii) a regular black hole metric for $al2m$, (iii) a one-way traversable wormhole ...
N. Tsukamoto
semanticscholar   +1 more source

Thermodynamics of spacetime: The Einstein equation of state. [PDF]

open access: yesPhysical Review Letters, 1995
The Einstein equation is derived from the form of black hole entropy together with the fundamental relation $\delta Q=TdS$ connecting heat, entropy, and temperature.
T. Jacobson
semanticscholar   +1 more source

Dynamical Control of Multilayer Spacetime Structures Using Extended Fourier Modal Method

open access: yesIEEE Photonics Journal, 2021
We introduce two-dimensional space plus time (2D+1) structure and numerically investigate it using a developed multilayer simulation framework, for the first time.
Yaser Khorrami   +3 more
doaj   +1 more source

Black hole in three-dimensional spacetime. [PDF]

open access: yesPhysical Review Letters, 1992
The standard Einstein-Maxwell equations in 2+1 spacetime dimensions, with a negative cosmological constant, admit a black hole solution. The 2+1 black hole---characterized by mass, angular momentum, and charge, defined by flux integrals at infinity---is ...
M. BaƱados   +2 more
semanticscholar   +1 more source

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