Kavli Affiliate: Ali Javey | Summary:The epitaxial growth of 111 oriented Au on MoS$_2$ is well documented despite the large lattice mismatch (~8% biaxial strain), and the fact that a Au 001 orientation results in much less elastic strain. An analysis based on density functional and linear elasticity theories reveals that the 111 orientation is […]
Kavli Affiliate: Richard Berry | Summary:Recent experiments on the bacterial flagellar motor have shown that the structure of this nanomachine, which drives locomotion in a wide range of bacterial species, is more dynamic than previously believed. Specifically, the number of active torque-generating units (stators) was shown to vary across applied loads. This finding invalidates the […]
Kavli Affiliate: Christopher Ober| First 5 Authors: F. Ober, F. Ober, , , | Summary:Circumstellar disks are considered to be the birthplace of planets. Specific structures like spiral arms, gaps, and cavities are characteristic indicators of planet-disk interaction. Investigating these structures can provide insights into the growth of protoplanets and the physical properties of the […]
Kavli Affiliate: Daniel Ralph| First 5 Authors: William Ralph, William Ralph, , , | Summary:Occam’s Razor tells us to pick the simplest model that fits our observations. In order to make sense of his process mathematically, we interpret it in the context of posets of functions. Our approach leads to some unusual new combinatorial problems […]
Kavli Affiliate: Keith Schwab | Summary:Do the laws of quantum physics still hold for macroscopic objects – this is at the heart of Schrödinger’s cat paradox – or do gravitation or yet unknown effects set a limit for massive particles? What is the fundamental relation between quantum physics and gravity? Ground-based experiments addressing these questions […]
Kavli Affiliate: Jacqueline Barton| First 5 Authors: Thiagaraj Prabu, Thiagaraj Prabu, , , | Summary:An FPGA-based digital-receiver has been developed for a low-frequency imaging radio interferometer, the Murchison Widefield Array (MWA). The MWA, located at the Murchison Radio-astronomy Observatory (MRO) in Western Australia, consists of 128 dual-polarized aperture-array elements (tiles) operating between 80 and 300,MHz, […]
Kavli Affiliate: Richard Berry | Summary:The bacterial flagellar motor (BFM) is responsible for driving bacterial locomotion and chemotaxis, fundamental processes in pathogenesis and biofilm formation. In the BFM, torque is generated at the interface between transmembrane proteins (stators) and a rotor. It is well-established that the passage of ions down a transmembrane gradient through the […]
Kavli Affiliate: Kyle Shen | First 5 Authors: Matthew Molloy, Matthew Molloy, , , | Summary: We describe a method to extract resonant orbits from N-body simulations exploiting the fact that they close in a frame rotating with a constant pattern speed. Our method is applied to the N-body simulation of the Milky Way by […]
Kavli Affiliate: Sander Tans | Summary:The mean size of exponentially dividing E. coli cells cultured in different nutrient conditions is known to depend on the mean growth rate only. However, the joint fluctuations relating cell size, doubling time and individual growth rate are only starting to be characterized. Recent studies in bacteria (i) revealed the […]
Kavli Affiliate: Miriam Blaauboer | Summary:We study the effect of disorder in strongly interacting small atomic chains. Using the Kotliar- Ruckenstein slave-boson approach we diagonalize the Hamiltonian via scattering matrix theory. We numerically solve the Kondo transmission and the slave-boson parameters that allow us to calculate the Kondo temperature. We demonstrate that in the weak […]