Tunable Einstein-Bohr recoiling-slit gedankenexperiment at the quantum
limit
Tunable Einstein-Bohr recoiling-slit gedankenexperiment at the quantum
limit
In 1927, during the fifth Solvay Conference, Einstein and Bohr described a double-slit interferometer with a "movable slit" that can detect the momentum recoil of one photon. Here, we report a faithful realization of the Einstein-Bohr interferometer using a single atom in an optical tweezer, cooled to the motional ground …