Dissociation of a molecular dimer produces two quantum mechanically entangled atoms with equal and opposite momenta in the molecule’s rest frame. These atoms have Einstein-Podolsky-Rosen type correlations [1], and hence are of fundamental interest. It is possible to produce Bose-Einstein condensates (BECs) of molecules, and then to dissociate them as in Ref. [2], so that these correlations may ...

Several atom optics experiments have studied how atom-surface interactions affect the propagation of atom waves. However, none of these experiments directly measure the phase shift of atom waves due to interaction with a surface. For example, experiments with atoms transmitted through a cavity [1, 2], atoms diffracted from a material grating [3–6], atoms reflecting from surfaces [7– 10], atoms ...

In order to explain the results of experiments on scattering of a rays by matter Prof. Rutherford** has given a theory of the structure of atoms. According to this theory, the atoms consist of a positively charged nucleus surrounded by a system of electrons kept together by attractive forces from the nucleus; the total negative charge of the electrons is equal to the positive charge of the nucl...

We report on an experimental measurement of the phase shifts associated with the AC Stark effect. The optically induced light shift was measured using a Ramsey fringe technique and we have made detailed studies of the potential sources of coherence loss that can occur for an atomic sample manipulated by light. We investigated the loss of coherence due to the light shifts induced by using a non-...

With ready access to massive computer clusters we may now study light propagation in a dense cold atomic gas by means of basically exact numerical simulations. We report on a direct comparison between traditional optics, that is, electrodynamics of a polarizable medium, and numerical simulations in an elementary problem of light propagating through a slab of matter. The standard optics fails al...

The correlation between transport properties across sub-nanometric metallic gaps and the optical response of the system is a complex effect which is determined by the fine atomic-scale details of the junction structure. As experimental advances are progressively accessing transport and optical characterization of smaller nanojunctions, a clear connection between the structural, electronic and o...

The development of optical nanofibers (ONF) and the study and control of their optical properties when coupling atoms to their electromagnetic modes has opened new possibilities for their use in quantum optics and quantum information science. These ONFs offer tight optical mode confinement (less than the wavelength of light) and diffraction-free propagation. The small cross section of the trans...

The miniaturization of cold-atom systems brings high accuracy into portable atomic metrology. However, the impact sensors in real-world applications has been limited by overall laser cooling package. This study amalgamates a chip-scale optics setup with microfabricated system to dramatically reduce device size, weight, and power usage. authors use an on-chip Zeeman offset lock for cooling, demo...

As a contribution to quantum optics in the vicinity of surfaces we study the single atom spontaneous emission in a linear chain of two-level atoms. The electromagnetic field is thereby treated with the help of integro-differential equations which take into account the interaction with the other atoms in the chain. The life time of the excited atom, the frequency shift of the atomic transition a...

Superconductors are considered in view of applications to atom chip devices. The main features of magnetic traps based on superconducting wires in the Meissner and mixed states are discussed. The former state may mainly be interesting for improved atom optics, while in the latter, cold atoms may provide a probe of superconductor phenomena. The properties of a magnetic side guide based on a sing...