Results 61 to 70 of about 16,683 (262)

A measure of the multiverse [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2007
I review recent progress in defining a probability measure in the inflationary multiverse. General requirements for a satisfactory measure are formulated and recent proposals for the measure are clarified and discussed.
openaire   +3 more sources

Hyperverse, 5-dimensional gravity and multiverses as nested Gogberashvili shells [PDF]

open access: yes, 2022
We consider the Hyperverse as a collection of multiverses in 5-dimensional spacetime with gravitational constant $G$. Each multiverse in our simplified model is a bouquet of nested spherical Gogberashvili shells. If $g_k$ is the gravitational constant of a thin shell $S_k$ and $\varepsilon_k^{}$ its thickness then $G\sim\varepsilon_k^{}g_k^{}$.
arxiv   +1 more source

New metrics for multiple testing with correlated outcomes

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
When investigators test multiple outcomes or fit different model specifications to the same dataset, as in multiverse analyses, the resulting test statistics may be correlated.
Maya B. Mathur, Tyler J. VanderWeele
doaj   +1 more source

Multiverse Predictions for Habitability: Element Abundances

open access: yesUniverse, 2022
We investigate the dependence of elemental abundances on physical constants, and the implications this has for the distribution of complex life for various proposed habitability criteria.
McCullen Sandora   +4 more
doaj   +1 more source

Understanding and Supporting Debugging Workflows in Multiverse Analysis [PDF]

open access: yesProceedings of the 2023 CHI Conference on Human Factors in Computing Systems (CHI '23), April 23-28, 2023, Hamburg, Germany. ACM, New York, NY, USA, 2022
Multiverse analysis, a paradigm for statistical analysis that considers all combinations of reasonable analysis choices in parallel, promises to improve transparency and reproducibility. Although recent tools help analysts specify multiverse analyses, they remain difficult to use in practice.
arxiv  

Before spacetime: A proposal of a framework for multiverse quantum cosmology based on three cosmological conjectures [PDF]

open access: yesClass. Quantum Grav. 36, 185001 (2019), 2018
The three cosmological conjectures to which our work refers are: the phenomenon called geodesic incompleteness, the physical gravitational $\theta_G$-term that would characterize the 1-parameter family of inequivalent vacua of quantum gravidynamics, and the hypothesis of multiversality, more specifically, a zero-energy multiverse.
arxiv   +1 more source

Set Theory and Many Worlds

open access: yesQuantum Reports, 2023
The 2022 Tel Aviv conference on the many-worlds interpretation of quantum mechanics highlighted many differences between theorists. A very significant dichotomy is between Everettian fission (splitting) and Saunders–Wallace–Wilson divergence. For fission,
Paul Tappenden
doaj   +1 more source

QUANTUM ENTANGLEMENT IN THE MULTIVERSE [PDF]

open access: yesЖурнал Экспериментальной и Теоретической Физики, 2014
In this paper it is shown that the quantum state of a multiverse made up of classically disconnected regions of the space-time, whose dynamical evolution is dominated by a homogeneous and isotropic fluid, is given by a squeezed state. These are typical quantum states that have no classical counterpart and, therefore, they allow us to analyze the ...
Salvador Robles-Pérez   +1 more
openaire   +3 more sources

Multidisk Clutch Optimization Using Quantum Annealing

open access: yesIEEE Transactions on Quantum Engineering
In this article, we apply a quantum optimization algorithm to solve a combinatorial problem with significant practical relevance occurring in clutch manufacturing.
D. John Malcolm   +7 more
doaj   +1 more source

Multiverse Predictions for Habitability: Stellar and Atmospheric Habitability

open access: yesUniverse, 2022
Stellar activity and planetary atmospheric properties have the potential to strongly influence habitability. To date, neither have been adequately studied in the multiverse context, so there has been no assessment of how these effects impact the ...
McCullen Sandora   +3 more
doaj   +1 more source

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