Magnifications of paired micro-images emerging from a micro-lensing critical curve

Kavli Affiliate: Paul Schechter | First 5 Authors: Luke Weisenbach, Paul Schechter, Joachim Wambsganss, , | Summary: Studies of the inner regions of micro-lensed AGN during caustic crossing events have often relied upon the approximation that the magnification near a fold caustic is inversely proportional to the square root of the source-caustic distance. We examine […]


Continue.. Magnifications of paired micro-images emerging from a micro-lensing critical curve

Untethered microbot powered by giant magnetoelastic strain

Kavli Affiliate: Zhigang Suo | First 5 Authors: Yukun Xia, Jikun Wang, Ruisen Yang, Tongqing Lu, Tiejun Wang | Summary: Magnetic elastomers deform under a magnetic field, working as a soft actuator. Untethered microbot made of magnetic elastomers have great potentials in performing medical tasks inside human body as mini doctors. However, the lack of […]


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Transport signatures of surface states in a Weyl semimetal: evidence of field driven Fermi arc interferometry

Kavli Affiliate: Jeffrey Neaton | First 5 Authors: Nityan L. Nair, Marie-Eve Boulanger, Francis Laliberté, Sinead Griffin, Sanyum Channa | Summary: A signature property of Weyl semimetals is the existence of topologically protected surface states – arcs in momentum space that connect Weyl points in the bulk. However, the presence of bulks states makes detection […]


Continue.. Transport signatures of surface states in a Weyl semimetal: evidence of field driven Fermi arc interferometry

Andreev reflection at the interface with an oxide in the quantum Hall regime

Kavli Affiliate: Joseph Falson | First 5 Authors: Yusuke Kozuka, Atsushi Sakaguchi, Joseph Falson, Atsushi Tsukazaki, Masashi Kawasaki | Summary: Quantum Hall/superconductor junctions have been an attractive topic as the two macroscopically quantum states join at the interface. Despite longstanding efforts, however, experimental understanding of this system has not been settled yet. One of the […]


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Robust Model Predictive Control of Irrigation Systems with Active Uncertainty Learning and Data Analytics

Kavli Affiliate: Abraham Duncan Stroock | First 5 Authors: Chao Shang, Wei-Han Chen, Abraham Duncan Stroock, Fengqi You, | Summary: We develop a novel data-driven robust model predictive control (DDRMPC) approach for automatic control of irrigation systems. The fundamental idea is to integrate both mechanistic models, which describe dynamics in soil moisture variations, and data-driven […]


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Cathodoluminescence-based nanoscopic thermometry in a lanthanide-doped phosphor

Kavli Affiliate: Naomi Ginsberg | First 5 Authors: Clarice D. Aiello, Andrea D. Pickel, Edward Barnard, Rebecca B. Wai, Christian Monachon | Summary: Crucial to analyze phenomena as varied as plasmonic hot spots and the spread of cancer in living tissue, nanoscale thermometry is challenging: probes are usually larger than the sample under study, and […]


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Classifying Signatures of Sudden Ionospheric Disturbances

Kavli Affiliate: Philip H. Scherrer | First 5 Authors: Sahil Hegde, Monica G. Bobra, Philip H. Scherrer, , | Summary: Solar activity, such as flares, produce bursts of high-energy radiation that temporarily enhance the D-region of the ionosphere and attenuate low-frequency radio waves. To track these Sudden Ionospheric Disturbances (SIDs), which disrupt communication signals and […]


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Harnessing Avidity: Quantifying Entropic and Energetic Effects of Linker Length and Rigidity Required for Multivalent Binding of Antibodies to HIV-1 Spikes

Kavli Affiliate: Pamela J. Bjorkman | First 5 Authors: Tal Einav, Shahrzad Yazdi, Aaron Coey, Pamela J. Bjorkman, Rob Phillips | Summary: Due to the low density of envelope (Env) spikes on the surface of HIV-1, neutralizing IgG antibodies rarely bind bivalently using both antigen-binding arms (Fabs) to crosslink between spikes (inter-spike crosslinking), instead resorting […]


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Absolute and arbitrary orientation of single molecule shapes

Kavli Affiliate: Paul W. K. Rothemund | First 5 Authors: Ashwin Gopinath, Chris Thachuk, Anya Mitskovets, Harry A. Atwater, David Kirkpatrick | Summary: DNA origami is a modular platform for the combination of molecular and colloidal components to create optical, electronic, and biological devices. Integration of such nanoscale devices with microfabricated connectors and circuits is […]


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Characterization of lemniscate atmospheric aberrations in Gemini Planet Imager data

Kavli Affiliate: Bruce A. Macintosh | First 5 Authors: Alexander Madurowicz, Bruce A. Macintosh, Jean-Baptiste Ruffio, Jeffery Chilcote, Vanessa P. Bailey | Summary: A semi analytic framework for simulating the effects of atmospheric seeing in Adaptive Optics systems on an 8-m telescope is developed with the intention of understanding the origin of the wind-butterfly, a […]


Continue.. Characterization of lemniscate atmospheric aberrations in Gemini Planet Imager data