Results 91 to 100 of about 1,035 (272)

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Interplanetary frontiers: terraforming from an invasion science perspective

Oikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts, Ronaldo Sousa, Phillip J. Haubrock   +2 more
wiley   +1 more source

Analysis of beam wander effects for a horizontal-path propagating Gaussian-beam wave: focused beam case

Failure of the first-order Rytov approximation to properly predict the scintillation index of a large-aperture focused beam, or an uplink collimated (or focused) beam, has been discussed in several recent publications, which cite beam wander effects as ...
Andrews, L.C., Phillips, R.L., Recolons Martos, Jaume   +2 more
core  

‘They are not predators: They are a higher power’—Relational values and principles framing human–predator relationship in Noongar Country, Southwestern Australia

People and Nature, EarlyView.
Abstract Human–predator coexistence presents urgent conservation challenges that demand approaches extending beyond mere conflict mitigation. Indigenous knowledge systems, though historically marginalised by Western science, offer vital insights into ethical, sustainable relationships with nature.
Rocío Almuna, Cristina E. Ramalho, Lynette Knapp, Carol Pettersen, Iris Maude Bonshore, Elizabeth M. Woods, Gail E. Yorkshire‐Selby, Mick Hayden, Rhys Bonshore, Larry Blight, Peter Speldewinde, José Tomás Ibarra, Stephen D. Hopper   +12 more
wiley   +1 more source

Emergent Chaos‐Like Dynamics of Spin–Orbit‐Torque‐Driven Magnetic Transitions

Small, EarlyView.
By combining anisotropy‐engineered nanometer‐scale nucleation sites with time‐resolved x‐ray holography and micromagnetic modeling, magnetization dynamics are directly imaged, revealing chaos‐like fluctuations and skyrmion shedding and highlighting the intrinsic complexity of spin‐orbit torque driven systems.
L.‐M. Kern, K. Litzius, V. Deinhart, M. Schneider, C. Klose, K. Gerlinger, R. Battistelli, D. Metternich, D. Engel, C. M. Günther, M.‐J. Huang, K. Höflich, F. Büttner, S. Eisebitt, B. Pfau   +14 more
wiley   +1 more source

Impacts of laser beam diverging angle on free-space optical communications

, 2011
A free-space optical (FSO) communication system that does not implement compensation strategies for the effects of beam wander may experience deep long-term channel fades or even severe communication outage when the laser spot wanders away from the ...
Zhijun Zhao, Zhang, Yuchi, Rui Liao, null Yuchi Zhang, Liao, Rui, Zhao, Zhijun   +5 more
core   +1 more source

Exploring the potential of Textile Reinforced Concrete for corrosion‐insensitive retaining walls

Structural Concrete, EarlyView.
Abstract In a context where durability concerns, particularly the corrosion of steel reinforcement, remain a critical challenge for conventional reinforced concrete structures under severe exposure, Textile Reinforced Concrete (TRC) is emerging as a promising alternative.
J. Devènes, B. Regúlez Pérez, L. Todisco, M. Fernández Ruiz   +3 more
wiley   +1 more source

Identification of invisible damage in prestressed concrete bridges—A demonstrator case using coda wave interferometry

Structural Concrete, EarlyView.
Abstract During their life cycle, prestressed concrete bridges are prone to wire breaks of their tendons due to fatigue or stress corrosion cracking. However, not all structures show visible cracking on the surface, which would provide timely warning of otherwise invisible damage. Brittle failure may occur.
Noah Sträter, Felix Clauß, Mark Alexander Ahrens, Peter Mark   +3 more
wiley   +1 more source

Unraveling the impact of dog‐friendly spaces on urban–wildland pumas and other wildlife

Wildlife Biology, EarlyView.
As the most widespread large carnivore on the planet, domestic dogs Canis lupus familiaris can pose a major threat to wildlife, even within protected areas (PAs). Growing human presence in PAs, coupled with increasing pet dog ownership underscores the urgency to understand the influence of dogs on wildlife activity and health.
Alys Granados, Zara McDonald, Katie McPherson, David Stoner   +3 more
wiley   +1 more source

Vortex beam broadening and wander in atmospheric turbulence

Journal of Applied Physics
Atmospheric turbulence causes beam broadening and beam wander in vortex beams during propagation. Based on the Rytov perturbation theory, the Huygens–Fresnel principle, and the beam wander theory, analytical expressions for the beam width and variance of beam wander of vortex beams propagating through atmospheric turbulence are derived.
Xizheng Ke, Xiwen Li
openaire   +1 more source