We simulate the gravitational dynamics of a massive object interacting with Ultralight / Fuzzy Dark Matter (ULDM/FDM), non-relativistic quantum matter described by Schrodinger-Poisson equation. first consider point mass moving in uniform background, and then supermassive black hole (SMBH) within ULDM soliton. After replicating simple dynamical friction scenarios to verify our numerical strategi...

We investigate the influence of a dark photon on Casimir effect and calculate corresponding leading contribution to energy. For expected magnitudes - mixing parameter, turns out be negligible. The plasmon dispersion relation is also not noticeably modified by presence photon.

The technical feasibility of superefficient family cars has been demonstrated. Yet it has typically compromised vehicle performance, safety, cost, manufacturability, or marketability. Industry experimentation has tended to focus on improving performance, or on implementing hybrid-electric drivesystems in essentially conventional vehicles, or on reducing mass and drag, or on improving safety—but...

We explore the cosmological implications of an ultra-light pseudo-Nambu-Goldstone boson. With global spontaneous symmetry breaking scale f ' 10 18 GeV and explicit breaking scale comparable to MSW neutrino masses, M 10 3 eV, such a eld, which acquires a mass m M 2 =f H 0 , would have become dynamical at recent epochs and currently dominate the energy density of the universe. The eld acts as an ...

The successful development of Li-O2 battery technology depends on resolving the issue of cathode corrosion by the discharge product (Li2O2) and/or by the intermediates (LiO2) generated during cell cycling. As an important step toward this goal, we report for the first time the nanoporous Ni with a nanoengineered AuNi alloy surface directly attached to Ni foam as a new all-metal cathode system. ...

Lambda Station is an ongoing project of Fermi National Accelerator Laboratory and the California Institute of Technology. The goal of this project is to design, develop and deploy network services for path selection, admission control and flow based forwarding of traffic among dataintensive Grid applications such as are used in High Energy Physics and other communities. Lambda Station deals wit...

Recent advances in multiscale manufacturing enable fabrication of hollow-truss based lattices with dimensional control spanning seven orders of magnitude in length scale (from ;50 nm to;10 cm), thus enabling the exploitation of nano-scale strengthening mechanisms in a macroscale cellular material. This article develops mechanical models for the compressive strength of hollow microlattices and v...

Three-dimensional (3D) graphene aerogels (GA) show promise for applications in supercapacitors, electrode materials, gas sensors, and oil absorption due to their high porosity, mechanical strength, and electrical conductivity. However, the control, actuation, and response properties of graphene aerogels have not been well studied. In this paper, we synthesized 3D graphene aerogels decorated wit...