Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect
Advanced Physics Research, EarlyView.This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò +4 more
wiley +1 more source
Lorentzian Gromov Hausdorff theory as a tool for quantum gravity kinematics [PDF]
arXiv, 2004 This thesis start by a review of different approaches to classical and quantum gravity. The main theme is Lorentzian Gromov Hausdorff theory which is an active diffeomorphism invariant theory on the space of Lorentz spaces (think about globally hyperbolic spacetimes).
arxiv
Currents and superpotentials in classical gauge theories: II. Global aspects and the example of affine gravity [PDF]
, 2000 B. Juliá, S Silva
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Classical Euclidean wormhole solutions in Palatini $f(\tilde{R})$ cosmology
, 2012 We study the classical Euclidean wormholes in the context of extended theories of gravity. With no loss of generality, we use the dynamical equivalence between $f(\tilde{R})$ gravity and scalar-tensor theories to construct a point-like Lagrangian in the ...
A. G. Agnese +38 more
core +1 more source
Quantum-gravitational null Raychaudhuri equation
Journal of High Energy PhysicsWe consider a congruence of null geodesics in the presence of a quantized spacetime metric. The coupling to a quantum metric induces fluctuations in the congruence; we calculate the change in the area of a pencil of geodesics induced by such fluctuations.
Sang-Eon Bak +3 more
doaj +1 more source
Quantum Anomalies in Condensed Matter
Advanced Physics Research, EarlyView.Quantum materials provide a fertile ground in which to test and realize quantum anomalies predicted by quantum field theory. Quantum anomalies need to be canceled globally, however, quantum states with a quantum anomaly can exist at the boundary of topological materials.
Michael T. Pettes +11 more
wiley +1 more source
Symmetry properties under arbitrary field redefinitions of the metric energy–momentum tensor in classical field theories and gravity [PDF]
, 2002 Guido Magnano, Leszek M. Sokołowski
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Recent Advances in Nitride‐Based Micro‐LEDs for Next‐Generation Display
Advanced Physics Research, EarlyView.Nitride‐based Micro‐light‐emitting diode (Micro‐LED) is now spreading into the field of display technology, which has been dominated by liquid crystal display (LCD) and organic LED (OLED). This review focuses on recent developments in Micro‐LED display, including epitaxy and chip processing, mass transfer, driving, bonding, and detection technologies ...
Jiahao Song +9 more
wiley +1 more source
Unified Theory of Gravity and Electromagnetism: Classical and Quantum Aspects
, 2021 Avik Dubey
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Scalar and tensorial topological matter coupled to (2 + 1)-dimensional gravity: I. Classical theory and global charges [PDF]
, 2006 Robert B. Mann, E.M. Popescu
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