Results 71 to 80 of about 118,522 (326)

Gate‐Tunable Hole Transport in In‐Plane Ge Nanowires by V‐Groove Confined Selective Epitaxy

open access: yesAdvanced Functional Materials, EarlyView.
Ge nanowires are promising for hole spin‐based quantum processors, requiring direct integration onto Si wafers. This work introduces V‐groove‐confined selective epitaxy for in‐plane nanowire growth on Si. Structural and low‐temperature transport measurements confirm their high crystalline quality, gate‐tunable hole densities, and mobility.
Santhanu Panikar Ramanandan   +11 more
wiley   +1 more source

Correlation functions of sourced gravitational waves in inflationary scalar vector models. A symmetry based approach

open access: yesJournal of High Energy Physics, 2019
We use conformal symmetry to constrain the shape of inflationary correlators in the presence of long-lived vector field perturbations. Applying conformal Ward identities, we derive general expressions, up to amplitudes and normalization factors, for the ...
Juan P. Beltrán Almeida   +2 more
doaj   +1 more source

PT Symmetry, Conformal Symmetry, and the Metrication of Electromagnetism [PDF]

open access: yesFoundations of Physics, 2016
We present some interesting connections between $PT$ symmetry and conformal symmetry. We use them to develop a metricated theory of electromagnetism in which the electromagnetic field is present in the geometric connection. However, unlike Weyl who first advanced this possibility, we do not take the connection to be real but to instead be $PT ...
openaire   +3 more sources

Spontaneous conformal symmetry breaking in fishnet CFT

open access: yesPhysics Letters B, 2020
Quantum field theories with exact but spontaneously broken conformal invariance have an intriguing feature: their vacuum energy (cosmological constant) is equal to zero. Up to now, the only known ultraviolet complete theories where conformal symmetry can
Georgios K. Karananas   +2 more
doaj  

Flexible Leaf‐Like Fuel Cell From Plasmonic Janus Nanosheet

open access: yesAdvanced Functional Materials, EarlyView.
A flexible leaf‐like fuel cell is fabricated by conductive gold nanowire sponge‐supported plasmonic Janus nanosheet, which can generate a power of 8.93 mW cm⁻2 with less than 10% performance deterioration even being bent or twisted. Further assembly in a tree‐like layout demonstrates omnidirectional light harvesting capability and wind resistance ...
Yifeng Huang   +3 more
wiley   +1 more source

Roulette‐Inspired Physical Unclonable Functions: Stochastic yet Deterministic Multi‐Bit Patterning through the Solutal Marangoni Effect

open access: yesAdvanced Functional Materials, EarlyView.
Geometric multi‐bit patterning based on dynamic wetting and dewetting phenomena creates roulette‐like Physical Unclonable Function (PUF) labels with stochastic yet deterministic properties. This method leverages the solutal‐Marangoni effect for high randomness while achieving deterministic multinary patterns through polygonal confinement of binary ...
Yeongin Cho   +8 more
wiley   +1 more source

Conformal symmetry of JIMWLK evolution at NLO [PDF]

open access: yesJournal of High Energy Physics, 2014
We construct the Next to Leading Order JIMWLK Hamiltonian for high energy evolution in ${\cal N}=4$ SUSY theory, and show that it possesses conformal invariance, even though it is derived using sharp cutoff on rapidity variable. The conformal transformation properties of Wilson lines are not quite the naive ones, but at NLO acquire an additional ...
Alex Kovner   +2 more
openaire   +3 more sources

Conformal symmetry, chiral fermions and semiclassical approximation

open access: yesPhysics Letters B, 2020
The explicit form of conformal generators is found which provides the extension of Poincare symmetry for massless particles of arbitrary helicity. The helicity 12 particles are considered as the particular example.
Joanna Gonera   +2 more
doaj  

Conformal symmetry for relativistic point particles [PDF]

open access: yesPhysical Review D, 2014
Version accepted for publication in Phys.
Casalbuoni, Roberto   +1 more
openaire   +4 more sources

Dual conformal symmetry at loop level; massive regularization

open access: yes, 2011
Dual conformal symmetry has had a huge impact on our understanding of planar scattering amplitudes in N=4 super Yang-Mills. At tree level, it combines with the original conformal symmetry generators to a Yangian algebra, a hallmark of integrability, and ...
Henn, Johannes M.
core   +1 more source

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