Results 111 to 120 of about 6,479 (312)

Localization and Dualities in Three Dimensional Superconformal Field Theories [PDF]

open access: yes, 2012
In this thesis we apply the technique of localization to three-dimensional N=2 superconformal field theories. We consider both theories which are exactly superconformal, and those which are believed to flow to nontrivial superconformal fixed points, for
Willett, Brian M.
core   +1 more source

CFD modeling and sensitivity‐guided design of silicon filament CVD reactors

open access: yesAIChE Journal, EarlyView.
Abstract Filament‐based chemical vapor deposition (CVD) for silicon (Si) coatings is often treated as an adaptation of planar deposition. But this overlooks fundamental shifts in transport phenomena and reaction kinetics. In filament CVD, the filament acts as a substrate, heat source, and flow disruptor simultaneously. In this work, we ask: What really
G. P. Gakis   +8 more
wiley   +1 more source

Ghost-free infinite derivative gravity

open access: yesJournal of High Energy Physics, 2018
We present the construction of a gravitational action including an infinite series of higher derivative terms. The outcome is a classically consistent completion of a well-studied quadratic curvature theory.
Brage Gording, Angnis Schmidt-May
doaj   +1 more source

A new class of group field theories for 1st order discrete quantum gravity

open access: yes, 2008
Group Field Theories, a generalization of matrix models for 2d gravity, represent a 2nd quantization of both loop quantum gravity and simplicial quantum gravity.
Afd Theoretical Physics (ITF)   +3 more
core  

Modeling the separation of water‐in‐oil emulsions in continuously fed gravity settlers using millifluidic experiments

open access: yesAIChE Journal, EarlyView.
Abstract Emulsion separation remains a persistent challenge in chemical and process industries due to the metastable nature of dispersed droplets. In gravity separators, the overall separation rate is governed by the formation of a densely packed zone (DPZ) of deforming and coalescing droplets that mediates between the dispersed and continuous phases ...
Andrei Zlobin   +8 more
wiley   +1 more source

Scalarization of compact stars in the scalar-Gauss-Bonnet gravity

open access: yesJournal of High Energy Physics, 2019
We study scalarization of horizonless neutral compact reflecting stars. In our model, the scalar hair can be induced by the coupling of static scalar fields to the Gauss-Bonnet invariant.
Yan Peng
doaj   +1 more source

Sachs’ free data in real connection variables

open access: yesJournal of High Energy Physics, 2017
We discuss the Hamiltonian dynamics of general relativity with real connection variables on a null foliation, and use the Newman-Penrose formalism to shed light on the geometric meaning of the various constraints.
Elena De Paoli, Simone Speziale
doaj   +1 more source

Regional integration and trade: controlling for varying degrees of heterogeneity in the gravity model [PDF]

open access: yes, 2009
Using a panel dataset of bilateral export flows from 12 EU countries to 20 OECD trading partners over the 1992–2003 period, this paper examines whether the effect on trade of European regional integration, denoted by an EU dummy, holds across a ...
Stack, M
core   +1 more source

On the passage from the quantum theory to the semi-classical theory in 2D dilaton gravity [PDF]

open access: yesPhysics Letters B, 1993
Abstract An attempt is made to understand the passage from the exact quantum treatment of the CGHS theory to the semi-classical physics discussed by many authors. We find first that to the order of accuracy to which Hawking effects are calculated in the theory, it is inconsistent to ignore correlations in the dilaton gravity sector. Next the standard
openaire   +1 more source

Evolution of Physical Intelligence Across Scales

open access: yesAdvanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu   +7 more
wiley   +1 more source

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