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26 papers · 1 filter
Fuzzy Schwarzschild (2+1)-spacetime
David Viennot
We present a toy model of fuzzy Schwarzschild space slice (as a noncommutative manifold) which quantum mean values and quantum quasi-coherent states (states minimizing the quantum…
Searching for Hidden Neutrons with a Reactor Neutrino Experiment: Constraints from the STEREO Experiment
H. Almazán, L. Bernard, A. Blanchet +25
Different extensions of the standard model of particle physics, such as braneworld or mirror matter models, predict the existence of a neutron sterile state, possibly as a dark mat…
OSSOS. XXIII. 2013 VZ70 and the Temporary Coorbitals of the Giant Planet
Mike Alexandersen, Sarah Greenstreet, Brett J. Gladman +8
We present the discovery of 2013 VZ70, the first known horseshoe coorbital companion of Saturn. Observed by the Outer Solar System Origins Survey (OSSOS) for 4.5 years, the orbit o…
APOGEE-2 Discovery of a Large Population of Relatively High-Metallicity Globular Cluster Debris
José G. Fernández-Trincado, Timothy C. Beers, Anna. B. A. Queiroz +13
We report the discovery of a new, chemically distinct population of relatively high-metallicity ([Fe/H] ) red giant stars with super-solar [N/Fe] () identifi…
Comparing Quantum Gravity Models: String Theory, Loop Quantum Gravity, and Entanglement gravity versus -QGR
Houri Ziaeepour
In a previous work [arXiv:2009.03428] we proposed a new model for Quantum GRavity(QGR) and cosmology, dubbed -QGR. One of the axioms of this model is that Hilbert space…
Loop quantum gravity with optimal control path integral, and application to black hole tunneling
Quentin Ansel
This paper presents a novel path integral formalism for Einstein's theory of gravitation from the viewpoint of optimal control theory. Despite its close relation to the well-known…