Q. Y. He, M. D. Reid, E. Giacobino, J. Cviklinski, and P. D. Drummond* ARC Centre of Excellence for Quantum-Atom Optics, Swinburne University of Technology, PO Box 218, Melbourne, VIC 3122, Australia ARC Centre of Excellence for Quantum-Atom Optics, The University of Queensland, Brisbane QLD 4072, Australia Laboratoire Kastler Brossel, Universite Paris 6, Ecole Normale Superieure et CNRS, UPMC ...

Four atom optics experiments that each serve to measure atom-surface interactions near nanofabricated gratings are presented here. In these experiments atoms in a beam travel within 25 nm of a material grating bar, and the analysis incorporates phase shifts for the atomic de Broglie waves due to interactions betwen Na atoms and silicon nitride surfaces. One atom diffraction experiment determine...

We report on the atom optical manipulation of an atom laser beam. Reflection, focusing, and its storage in a resonator are demonstrated. Precise and versatile mechanical control over an atom laser beam propagating in an inhomogeneous magnetic field is achieved by optically inducing spin flips between atomic ground states with different magnetic moment. The magnetic force acting on the atoms can...

A novel scheme to achieve large-angle atomic diffraction by standing-wave fields is proposed. It uses a highorder Doppleron resonance as a catalyst to speed up a high-order Bragg resonance by orders of magnitude. This effect occurs when the atom-field frequency detuning is such that the Bragg resonance and the Doppleron resonance become degenerate.

We discuss a recently demonstrated type of microwave spectroscopy of trapped ultra-cold atoms known as " echo spectroscopy " [M.F. Andersen et. al., Phys. Rev. Lett., in press (2002)]. Echo spectroscopy can serve as an extremely sensitive experimental tool for investigating quantum dynamics of trapped atoms even when a large number of states are thermally populated. We show numerical results fo...

The development of methods for completely determining the quantum state of an atom or cavity field @1# continues to be an important issue in atomic physics. For example, in the field of quantum optics, schemes have been recently proposed, based on the Stem-Gerlach effect, for completely determining the quantum state of an atom as a way of fully characterizing the quantized electromagnetic field...

The interaction of an atom with an electromagnetic field is discussed in the presence of a time periodic external modulating force. It is explained that a control on atom by electromagnetic fields helps to design the quantum analog of classical optical systems. In these atom optical systems chaos may appear at the onset of external fields. The classical and quantum chaotic dynamics is discussed...