Results 41 to 50 of about 12,647 (172)
Noncommutative scalar field minimally coupled to gravity
, 2005 A model for noncommutative scalar fields coupled to gravity based on the generalization of the Moyal product is proposed. Solutions compatible with homogeneous and isotropic flat Robertson-Walker spaces to first non-trivial order in the perturbation of ...
Connes A. +4 more
core +1 more source
Non-linearities in the quantum multiverse
, 2012 It has been recently proposed that the multiverse of eternal inflation and the many-worlds interpretation of quantum mechanics can be identified, yielding a new view on the measure and measurement problems. In the present note, we argue that a non-linear
Bertolami, Orfeu, Herdeiro, Victor
core +1 more source
Studia Universitatis Moldaviae: Stiinte ale Educatiei, 2016 Recuperarea prin educaţie a copiilor cu deficienţe mintale, inclusiv severe, poate înregistra eficienţă înaltă, dacă vor fi corect selectate şi formate cadrele didactice.
Oleg ABABII
doaj
Zen and the Art of Space-Time Manufacturing
EPJ Web of Conferences, 2013 We present a general discussion about the so-called emergent properties and discuss whether space-time and gravity can be regarded as emergent features of underlying more fundamental structures.
Bertolami Orfeu
doaj +1 more source
Cosmological thinking: cultural heritage and challenge [PDF]
, 2010 The limitations of current technology do not allow one to foresee the expansion of the humankind beyond our planet for at least a few decades. Furthermore, the laws of physics, as for as they are known, preclude any form of traveling beyond the speed of ...
Bertolami, Orfeu
core +2 more sources
Two-scalar-field model for the interaction of dark energy and dark matter
, 2012 In this paper, we study the effects of an interaction between dark matter and dark energy through a two scalar field model with a potential $V(\phi,\chi)=e^{-\lambda\phi}P(\phi,\chi)$, where $P(\phi,\chi)$ is a polynomial.
C. Wetterich +3 more
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K&K - Kultur og Klasse, 1987 mellem kvinder, Hades, politisk magt og medierne: Nogle tanker om den europæiske kunsterskikkelse med udgangspunkt i figuren Gottried Benn.Eller: Hvad sker der med Euridike?
openaire +2 more sources
Mapping Large‐Scale Deep Soil Moisture Variations Using Ambient Seismic Noise
Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract Soil moisture is an essential ecosystem resource and a major control of the Earth's hydrological cycle and energy balance, closely interacting with the climate system. However, investigating deep soil moisture dynamics at large scales presents significant challenges due to the sparse distribution and limited spatial representativeness of in ...
Yang Lu +5 more
wiley +1 more source
Black hole solutions of gravity theories with nonminimal coupling between matter and curvature
, 2014 We study black hole solutions in an extension of General Relativity (GR) with an explicit non-minimal coupling between matter and curvature. General black hole solutions satisfying the known energy conditions are derived including the ones with anti-de ...
Bertolami, Orfeu +2 more
core +1 more source
Seismic Signals Monitor Debris‐Flow Erosion and Channel Elevation
Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract Channel erosion not only amplifies debris‐flow magnitude and impact but also reshapes local geomorphology. However, the destructive and infrequent nature of debris flows makes in situ monitoring of channel‐bed erosion processes and flow characteristics challenging.
Zhen Zhang +4 more
wiley +1 more source