Results 221 to 230 of about 2,706,843 (321)

Cosmic Inflation and Genetic Algorithms

Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023
Abstract Large classes of standard single‐field slow‐roll inflationary models consistent with the required number of e‐folds, the current bounds on the spectral index of scalar perturbations, the tensor‐to‐scalar ratio, and the scale of inflation can be efficiently constructed using genetic algorithms.
Steve A. Abel, Andrei Constantin, Thomas R. Harvey, Andre Lukas   +3 more
wiley   +1 more source

Optimally scrambling chiral spin-chain with effective black hole geometry. [PDF]

Sci Rep
Daniel A, Hallam A, Horner MD, Pachos JK.   +3 more
europepmc   +1 more source

Mass Hierarchies and Quantum Gravity Constraints in DKMM‐refined KKLT

Fortschritte der Physik, Volume 71, Issue 1, January 2023., 2023
Abstract We carefully revisit the mass hierarchies for the KKLT scenario with an uplift term from an anti D3‐brane in a strongly warped throat. First, we derive the bound resulting from what is usually termed “the throat fitting into the bulk” directly from the Klebanov‐Strassler geometry.
Ralph Blumenhagen, Aleksandar Gligovic, Seyf Kaddachi   +2 more
wiley   +1 more source

Divergent features of collective gravitational quantum excitations. [PDF]

Sci Rep
Akbari-Moghanjoughi M.
europepmc   +1 more source

Constraint algebra in loop quantum gravity reloaded. I. Toy model of aU(1)3gauge theory [PDF]

, 2013
Adam Henderson, Alok Laddha, Casey Tomlin   +2 more
openalex   +1 more source

Sustainable Pathways for the Synthesis of Calcium Sulfate Hemihydrate

Angewandte Chemie International Edition, EarlyView.
Calcium sulfate hemihydrate (bassanite) plays a key role in construction as a hydraulic binder. Due to its instability in water, industrial production primarily relies on thermal dehydration of gypsum. This review examines alternative, potentially more sustainable methods for the synthesis of bassanite, including gypsum conversion at lower temperatures
Selina Reigl, Alexander E. S. Van Driessche, Tomasz M. Stawski, Sebastian Koltzenburg, Werner Kunz, Matthias Kellermeier   +5 more
wiley   +1 more source

Why Does the Biosphere Interact with Earth's Climate, and How Do the Two-Way Interactions Work? [PDF]

Biology (Basel)
Nakamoto S.
europepmc   +1 more source

A superfluid dark matter cosmic string wake. [PDF]

Eur Phys J C Part Fields
Favero A, Brandenberger R.
europepmc   +1 more source

A 2D model of Causal Set Quantum Gravity: The emergence of the continuum

, 2007
Graham Brightwell, Joe Henson, Sumati Surya   +2 more
openalex   +2 more sources

Plastics of the Future? Interdisciplinary Review on Biobased and Biodegradable Polymers: Progress in Chemistry, Societal Views, and Environmental Implications

Angewandte Chemie International Edition, Accepted Article.
Global demand to reduce polymer waste and microplastics pollution has increased in recent years, prompting further research, development, and wider use of biodegradable and biobased polymers (BBPs). BBPs have emerged as promising alternatives to conventional plastics, with the potential to mitigate the environmental burdens of persistent plastic waste.
Sara T. R. Velasquez, Qisong Hu, Johanna Kramm, Vitoria C. Santin, Carolin Völker, Frederik Roman Wurm   +5 more
wiley   +1 more source