Conductance asymmetries in mesoscopic superconducting devices due to finite bias

Posted by klaurent Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: André Melo, Chun-Xiao Liu, Piotr Rożek, Tómas Örn Rosdahl, Michael Wimmer | Summary: Tunneling conductance spectroscopy in normal metal-superconductor junctions is an important tool for probing Andreev bound states in mesoscopic superconducting devices, such as Majorana nanowires. In an ideal superconducting device, the subgap conductance obeys specific […]


Continue.. Conductance asymmetries in mesoscopic superconducting devices due to finite bias

Charging-driven coarsening and melting of a colloidal nanoparticle monolayer at an ionic liquid-vacuum interface

Posted by klaurent Berkeley

Kavli Affiliate: Naomi S. Ginsberg | First 5 Authors: Connor G. Bischak, Jonathan G. Raybin, Jonathon W. Kruppe, Naomi S. Ginsberg, | Summary: We induce and investigate the coarsening and melting dynamics of an initially static nanoparticle colloidal monolayer at an ionic liquid-vacuum interface, driven by a focused, scanning electron beam. Coarsening occurs through grain […]


Continue.. Charging-driven coarsening and melting of a colloidal nanoparticle monolayer at an ionic liquid-vacuum interface

Designing angle-independent structural colors using Monte Carlo simulations of multiple scattering

Posted by klaurent Harvard

Kavli Affiliate: Vinothan N. Manoharan | First 5 Authors: Victoria Hwang, Anna B. Stephenson, Solomon Barkley, Soeren Brandt, Ming Xiao | Summary: Disordered nanostructures with correlations on the scale of visible wavelengths can show angle-independent structural colors. These materials could replace dyes in some applications because the color is tunable and resists photobleaching. However, designing […]


Continue.. Designing angle-independent structural colors using Monte Carlo simulations of multiple scattering

Designing angle-independent structural colors using Monte Carlo simulations of multiple scattering

Posted by klaurent Harvard

Kavli Affiliate: Joanna Aizenberg | First 5 Authors: Victoria Hwang, Anna B. Stephenson, Solomon Barkley, Soeren Brandt, Ming Xiao | Summary: Disordered nanostructures with correlations on the scale of visible wavelengths can show angle-independent structural colors. These materials could replace dyes in some applications because the color is tunable and resists photobleaching. However, designing nanostructures […]


Continue.. Designing angle-independent structural colors using Monte Carlo simulations of multiple scattering

Amplify-and-Forward Relaying for Hierarchical Over-the-Air Computation

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Feng Wang, Jie Xu, Vincent K. N. Lau, Shuguang Cui, | Summary: This paper studies a hierarchical over-the-air computation (AirComp) network over a large area, in which multiple relays are exploited to facilitate data aggregation from massive WDs. We present a two-phase amplify-and-forward (AF) relaying protocol. In […]


Continue.. Amplify-and-Forward Relaying for Hierarchical Over-the-Air Computation

Crystalline symmetry-protected non-trivial topology in prototype compound BaAl$_4$

Posted by klaurent Berkeley

Kavli Affiliate: Alessandra Lanzara | First 5 Authors: Kefeng Wang, Ryo Mori, Zhijun Wang, Limin Wang, Jonathan Han Son Ma | Summary: The BaAl$_4$ prototype crystal structure is the most populous of all structure types, and is the building block for a diverse set of sub-structures including the famous ThCr$_2$Si$_2$ family that hosts high-temperature superconductivity […]


Continue.. Crystalline symmetry-protected non-trivial topology in prototype compound BaAl$_4$

An Ising Hamiltonian Solver using Stochastic Phase-Transition Nano- Oscillators

Posted by klaurent Cornell

Kavli Affiliate: Darrell Schlom | First 5 Authors: Sourav Dutta, Abhishek Khanna, Adou S. Assoa, Hanjong Paik, Darrell Schlom | Summary: Computationally hard problems, including combinatorial optimization, can be mapped into the problem of finding the ground-state of an Ising Hamiltonian. Building physical systems with collective computational ability and distributed parallel processing capability can accelerate […]


Continue.. An Ising Hamiltonian Solver using Stochastic Phase-Transition Nano- Oscillators

Microtextures in the Chelyabinsk impact breccia reveal the history of Phosphorus-Olivine-Assemblages in chondrites

Posted by dbos Caltech

Kavli Affiliate: Paul D. Asimow | First 5 Authors: Craig R. Walton, Ioannis Baziotis, Ana Černok, Oliver Shorttle, Paul D. Asimow | Summary: The geochemistry and textural associations of chondritic phosphate minerals can provide insights into the geological histories of parental asteroids, but the processes governing their formation and deformation remain poorly constrained. Here, we […]


Continue.. Microtextures in the Chelyabinsk impact breccia reveal the history of Phosphorus-Olivine-Assemblages in chondrites

Surface wave non-reciprocity via time-modulated metamaterials

Posted by klaurent Caltech

Kavli Affiliate: Chiara Daraio | First 5 Authors: Antonio Palermo, Paolo Celli, Behrooz Yousefzadeh, Chiara Daraio, Alessandro Marzani | Summary: We investigate how Rayleigh waves interact with modulated resonators located on the free surface of a semi-infinite elastic medium. We begin by studying the dynamics of a single resonator with time-modulated stiffness. In particular, we […]


Continue.. Surface wave non-reciprocity via time-modulated metamaterials

Points2Surf: Learning Implicit Surfaces from Point Cloud Patches

Posted by klaurent Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Philipp Erler, Paul Guerrero, Stefan Ohrhallinger, Michael Wimmer, Niloy J. Mitra | Summary: A key step in any scanning-based asset creation workflow is to convert unordered point clouds to a surface. Classical methods (e.g., Poisson reconstruction) start to degrade in the presence of noisy and partial scans. […]


Continue.. Points2Surf: Learning Implicit Surfaces from Point Cloud Patches