Results 101 to 110 of about 37,131 (309)

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

Duality defects in D n -type Niemeier lattice CFTs

open access: yesJournal of High Energy Physics
We discuss the construction of duality defects in c = 24 meromorphic CFTs that correspond to Niemeier lattices. We will illustrate our constructions for the D n -type lattices.
Sachin Grover   +2 more
doaj   +1 more source

Entanglement entropy of gravitational edge modes

open access: yesJournal of High Energy Physics, 2022
We consider the linearised graviton in 4d Minkowski space and decompose it into tensor spherical harmonics and fix the gauge. The Gauss law of gravity implies that certain radial components of the Riemann tensor of the graviton on the sphere labels the ...
Justin R. David, Jyotirmoy Mukherjee
doaj   +1 more source

Generalized Conformal Symmetry and Recovery of SO(8) in Multiple M2 and D2 Branes

open access: yes, 2008
We investigate conformal symmetries of the Aharony-Bergman-Jafferis-Maldacena (ABJM) theory for multiple M2 branes and the Lorentzian Bagger-Lambert-Gustavsson (L-BLG) theory which can be obtained by taking a scaling limit k (>>N) -> \infty of the ABJM ...
Aharony   +78 more
core   +1 more source

SUSY shields the scaling symmetry of conformal quantum mechanics

open access: yes, 2019
Renormalization of the inverse square potential usually breaks its classical conformal invariance. In a strongly attractive potential, the scaling symmetry is broken to a discrete subgroup while, in a strongly repulsive potential, it is preserved at quantum level. In the intermediate, weak-medium range of the coupling, an anomalous length scale appears
Lima, A. A.   +3 more
openaire   +2 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Universal fine grained asymptotics of free and weakly coupled quantum field theory

open access: yesJournal of High Energy Physics
We give a rigorous proof that in any free quantum field theory with a finite group global symmetry G, on a compact spatial manifold, at sufficiently high energy, the density of states ρ α (E) for each irreducible representation α of G obeys a universal ...
Weiguang Cao, Tom Melia, Sridip Pal
doaj   +1 more source

CFT duals for black rings and black strings

open access: yesJournal of High Energy Physics, 2023
Holographic dualities between certain gravitational theories in four and five spacetime dimensions and 2D conformal field theories (CFTs) have been proposed based on hidden conformal symmetry exhibited by the radial Klein-Gordon (KG) operator in a so ...
Alexandra Chanson   +3 more
doaj   +1 more source

Improved Energy-Momentum Currents in Metric-Affine Spacetime [PDF]

open access: yes, 1992
In Minkowski spacetime it is well-known that the canonical energy-momentum current is involved in the construction of the globally conserved currents of energy-momentum and total angular momentum.
Audretsch   +33 more
core   +2 more sources

Non-linear realizations of conformal symmetry and effective field theory for the pseudo-conformal universe [PDF]

open access: yes, 2012
The pseudo-conformal scenario is an alternative to inflation in which the early universe is described by an approximate conformal field theory on flat, Minkowski space.
Kurt Hinterbichler, A. Joyce, J. Khoury
semanticscholar   +1 more source

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