Results 41 to 50 of about 30,488 (265)

Multi-mode mediated exchange coupling in cavity QED

open access: yes, 2010
Microwave cavities with high quality factors enable coherent coupling of distant quantum systems. Virtual photons lead to a transverse exchange interaction between qubits, when they are non-resonant with the cavity but resonant with each other.
A. Abragam   +10 more
core   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

open access: yesAdvanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner   +9 more
wiley   +1 more source

In-band spurious suppression in first-order antisymmetric-mode resonators using air holes and half electrode

open access: yesEngineering Science and Technology, an International Journal
Laterally excited bulk acoustic resonator (XBAR) exhibits a high electromechanical coupling coefficient (kt2) due to their intrinsically superior piezoelectric properties, which is highly advantageous for the subsequent design and implementation of ...
Shitao Lv   +7 more
doaj   +1 more source

Low-Complexity Sub-band Digital Predistortion for Spurious Emission Suppression in Noncontiguous Spectrum Access

open access: yes, 2016
Noncontiguous transmission schemes combined with high power-efficiency requirements pose big challenges for radio transmitter and power amplifier (PA) design and implementation.
Abdelaziz, Mahmoud   +5 more
core   +1 more source

Dark energy and the hierarchy problem [PDF]

open access: yes, 2006
The well-known hierarchy between the Planck scale (~10^{19}GeV) and the TeV scale, namely a ratio of ~10^{16} between the two, is coincidentally repeated in a inverted order between the TeV scale and the dark energy scale at \~10^{-3}eV implied by the ...
Aghababaie   +22 more
core   +5 more sources

Assembling a True “Olympic Gel” From over 16 000 Combinatorial DNA Rings

open access: yesAdvanced Materials, EarlyView.
Olympic gels are an elusive class of soft matter, consisting of molecular networks held together purely by mechanically interlocked rings. Their topological structure promises unique properties and functions, but their synthesis has proven notoriously difficult.
Sarah K. Speed   +9 more
wiley   +1 more source

Hour-glass magnetic spectrum in a stripe-less insulating transition metal oxide

open access: yes, 2013
An hour-glass shaped magnetic excitation spectrum appears to be an universal characteristic of the high-temperature superconducting cuprates. Fluctuating charge stripes or alternative band structure approaches are able to explain the origin of these ...
Drees, Y.   +3 more
core   +1 more source

A Study of Exclusive Charmless Semileptonic B Decays and Extraction of |V_{ub}| at CLEO [PDF]

open access: yes, 2007
We have studied semileptonic B decay to the exclusive charmless states pi, rho/omega, eta and eta' using the full 15.5 fb^-1 CLEO Upsilon(4S) sample, with measurements performed in subregions of phase space to minimize dependence on a priori knowledge of
A. J. Sadoff   +123 more
core   +2 more sources

Data‐Driven Discovery of Quaternary Ammonium Interlayers for Efficient and Thermally Stable Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
An active learning framework, grounded in independently generated in‐house experimental data, enables reliable discovery of high‐performance interfacial materials for perovskite solar cells. Iterative model refinement autonomously converges toward structurally robust quaternary ammonium architectures, establishing a new design principle for interfacial
Jongbeom Kim   +8 more
wiley   +1 more source

The Beauty of Symmetry: Common-mode rejection filters for high-speed interconnects and balanced microwave circuits [PDF]

open access: yes, 2017
Common-mode rejection filters operating at microwave frequencies have been the subject of intensive research activity in the last decade. These filters are of interest for the suppression of common-mode noise in high-speed digital circuits, where ...
Bonache, Jordi   +6 more
core  

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