Since the first proof-of-principle experiments over 25 years ago, atom interferometry has
matured to a versatile tool that can be used in fundamental research in particle physics …

Quantum physics has intrigued scientists and philosophers alike, because it challenges our
notions of reality and locality—concepts that we have grown to rely on in our macroscopic …

We simultaneously measure the gravitationally induced phase shift in two Raman-type
matter-wave interferometers operated with laser-cooled ensembles of Rb 87 and K 39 …

Interference with atomic and molecular matter waves is a rich branch of atomic physics and
quantum optics. It started with atom diffraction from crystal surfaces and the separated …

Interference phenomena are ubiquitous in physics, often forming the basis of demanding
measurements. Examples include Ramsey interferometry in atomic spectroscopy, X-ray …

We have demonstrated an interferometer for atoms. A three-grating geometry is used, in
which the interfering beams are distinctly separated in both position and momentum. We …

Why does one theory" succeed" while another, possibly clearer interpretation, fails? By
exploring two observationally equivalent yet conceptually incompatible views of quantum …

The quantum interference of de Broglie matter waves is probably one of the most startling
and fundamental aspects of quantum mechanics. It continues to tax our imaginations and …

Superposition is one of the most distinctive features of quantum theory and has been
demonstrated in numerous single-particle interference experiments,,,. Quantum …

The wave-particle duality dates back to Einstein's explanation of the photoelectric effect
through quanta of light and de Broglie's hypothesis of matter waves. Quantum mechanics …