Results 91 to 100 of about 345,713 (293)

Boundary terms in quantum field theory and the spin structure of QCD

open access: yesNuclear Physics B, 2014
Determining how boundary terms behave in a quantum field theory (QFT) is crucial for understanding the dynamics of the theory. Nevertheless, boundary terms are often neglected using classical-type arguments which are no longer justified in the full ...
Peter Lowdon
doaj   +1 more source

Liouville theory and matrix models: a Wheeler DeWitt perspective

open access: yesJournal of High Energy Physics, 2020
We analyse the connections between the Wheeler DeWitt approach for two dimensional quantum gravity and holography, focusing mainly in the case of Liouville theory coupled to c = 1 matter.
P. Betzios, O. Papadoulaki
doaj   +1 more source

Charging up the functional bootstrap

open access: yesJournal of High Energy Physics, 2021
We revisit the problem of bootstrapping CFT correlators of charged fields. After discussing in detail how bounds for uncharged fields can be recycled to the charged case, we introduce two sets of analytic functional bases for correlators on the line. The
Kausik Ghosh   +2 more
doaj   +1 more source

Boundary Effects in Integrable Field Theory on a Half Line [PDF]

open access: yes, 1995
Abstarct: Boundary effects caused by the boundary interactions in various integrable field theories on a half line are discussed at the classical as well as the quantum level. Only the so-called ``integrable" boundary interactions are discussed. They are
FUJII, Akira, SASAKI, Ryu
core   +2 more sources

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

open access: yesAdvanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon   +7 more
wiley   +1 more source

Quantum Gravity at the Corner

open access: yesUniverse, 2018
We investigate the quantum geometry of a 2d surface S bounding the Cauchy slices of a 4d gravitational system. We investigate in detail for the first time the boundary symplectic current that naturally arises in the first-order formulation of general ...
Laurent Freidel, Alejandro Perez
doaj   +1 more source

Effective entropy of quantum fields coupled with gravity

open access: yesJournal of High Energy Physics, 2020
Entanglement entropy, or von Neumann entropy, quantifies the amount of uncertainty of a quantum state. For quantum fields in curved space, entanglement entropy of the quantum field theory degrees of freedom is well-defined for a fixed background geometry.
Xi Dong   +3 more
doaj   +1 more source

Conformal bootstrap near the edge

open access: yesJournal of High Energy Physics, 2021
We propose a bootstrap program for CFTs near intersecting boundaries which form a co-dimension 2 edge. We describe the kinematical setup and show that bulk 1-pt functions and bulk-edge 2-pt functions depend on a non-trivial cross-ratio and on the angle ...
António Antunes
doaj   +1 more source

Intrabandgap States Engineering in Functionalized Nanodiamond to Generate Solvated Electrons for Photocatalysis Under Solar Illumination

open access: yesAdvanced Functional Materials, EarlyView.
The negative electron affinity of diamond allows to emit highly reductive electrons. By introducing intra‐bandgap states and an optimized electron transfer mechanism by surface functionalization with Ru(bpy)3, the formation of solvated electrons is achieved upon solar irradiation.
Benjamin Kiendl   +20 more
wiley   +1 more source

Casimir effect of rough plates under a magnetic field in Hořava-Lifshitz theory

open access: yesNuclear Physics B
We investigate the Casimir effect for parallel plates within the framework of Hořava-Lifshitz theory in 3+1 dimensions, considering the effects of roughness, anisotropic scaling factor, and an uniform constant magnetic field.
Byron Droguett, Claudio Bórquez
doaj   +1 more source

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