Astronomers propose an experiment that may close the last major loophole of Bell's inequality -- a 50-year-old theorem that, if violated by experiments, would mean that our universe is based not on ...

Explicit learning goals Interactive lectures Transformed homework problems (including a "bank" of potential HW problems) Common student difficulties & in-class group activities/tutorials Concept tests ...

Nature Research Intelligence Topics Topic summaries Mathematical Sciences Mathematical Physics Mathematical Aspects of Classical Mechanics, Quantum Mechanics and Quantum Information Theory Over the ...

course overview review of Lagrangian, Hamiltonian and Hamilton-Jacobi formulation of classical mechanics conflicts with experiments key ideas in and coordinate formulation of quantum mechanics ...

Exploring cause and effect A photo of the Sagnac interferometer used to generate polarization-entangled photon pairs during a basis measurement. (Courtesy: Davide Poderini/Sapienza University of Rome) ...

In 1971, graduate student Stuart Freedman and postdoctoral fellow John Clauser took over a room in the sub-basement of Birge Hall at the University of California, Berkeley, and built an experiment ...

Schematic: The experiment took place in a dye-filled cavity between two mirrors. The bottom mirror was nanostructured to create two waveguides that directed the light. In the primary waveguide, ...