Kavli Affiliate: Morteza Gharib | First 5 Authors: Jeff Delaune, Jacob Izraelevitz, Larry A. Young, William Rapin, Evgeniy Sklyanskiy | Summary: Mid-Air Deployment (MAD) of a rotorcraft during Entry, Descent and Landing (EDL) on Mars eliminates the need to carry a propulsion or airbag landing system. This reduces the total mass inside the aeroshell by […]
Kavli Affiliate: Julia R. Greer | First 5 Authors: Ottman A. Tertuliano, Bryce W. Edwards, Lucas R. Meza, Vikram S. Deshpande, Julia R. Greer | Summary: Natural hard composites like human bone possess a combination of strength and toughness that exceeds that of their constituents and of many engineered composites. This augmentation is attributed to […]
Kavli Affiliate: Julia R. Greer | Summary:Natural hard composites like human bone possess a combination of strength and toughness that exceeds that of their constituents and of many engineered composites. This augmentation is attributed to their complex hierarchical structure, spanning multiple length scales; in bone, characteristic dimensions range from nanoscale fibrils to microscale lamellae to […]
Kavli Affiliate: 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 present a quantitative assessment of phosphorus-bearing mineral textures in the three variously-shocked lithologies (light, dark, and melt) […]
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 […]
Kavli Affiliate: Morteza Gharib | First 5 Authors: Cecilia Huertas-Cerdeira, Andres Goza, John E. Sader, Tim Colonius, Morteza Gharib | Summary: The dynamics of a cantilever plate clamped at its trailing edge and placed at a moderate angle ($alpha leq 30^{circ}$) to a uniform flow are investigated experimentally and numerically, and a large experimental data […]
Kavli Affiliate: N. C. Yeh |Summary:The existence of nontrivial Berry phases associated with two inequivalent valleys in graphene provides interesting opportunities for investigating the valley-projected topological states. Examples of such studies include observation of anomalous quantum Hall effect in monolayer graphene, demonstration of topological zero modes in molecular graphene assembled by scanning tunneling microscopy, and […]
Kavli Affiliate: N. C. Yeh |Summary:Plasma enhanced chemical vapor deposition (PECVD) techniques have been shown to be an efficient method to achieve single-step synthesis of high-quality monolayer graphene (MLG) without the need of active heating. Here we report PECVD-growth of single-crystalline hexagonal bilayer graphene (BLG) flakes and mm-size BLG films with the interlayer twist angle […]
Kavli Affiliate: Nelson Darkwah Oppong| Summary:We investigate the metastable repulsive branch of a mobile impurity coupled to a degenerate Fermi gas via short-range interactions. We show that the quasiparticle lifetime of this repulsive Fermi polaron can be experimentally probed by driving Rabi oscillations between weakly and strongly interacting impurity states. Using a time-dependent variational approach, […]