Quantum interference of currents in an atomtronic SQUID.

Quantum interference of currents is the most important and well known quantum phenomenon in a conventional superconducting quantum interference device (SQUID). Here, we report the observation of quantum interference of currents in an atomtronic SQUID. Analogous to a conventional SQUID, currents flowing through two junctions in an atomtronic SQUID interfere due to the phase difference from rotation.

A High-Sensitivity Tunable Two-Beam Fiber-Coupled High-Density Magnetometer with Laser Heating.

Atomic magnetometers (AM) are finding many applications in biomagnetism, national security, industry, and science. Fiber-coupled (FC) designs promise to make them compact and flexible for operation. Most FC designs are based on a single-beam configuration or electrical heating.

The future of Indian Health Services for native Americans in the United States: an analysis of policy options and recommendations.

The passage of the Affordable Care Act in the United States has opened a policy window for the establishment of an independent Medicaid agency for the Navajo Nation. This article explores several policy options to improve health care services for Native Americans. Although there is a lack of scholarly research on the impact of healthcare reform and the effectiveness of current health care programs for American Indians, policymakers should utilize evidence-based research to inform policy decisions.

Bent waveguides for matter-waves: supersymmetric potentials and reflectionless geometries.

Non-zero curvature in a waveguide leads to the appearance of an attractive quantum potential which crucially affects the dynamics in matter-wave circuits. Using methods of supersymmetric quantum mechanics, pairs of bent waveguides are found whose geometry-induced potentials share the same scattering properties. As a result, reflectionless waveguides, dual to the straight waveguide, are identified.