Atoms  

Mark D. Lee and Janne Ruostekoski

We study cavity quantum electrodynamics of Bose-condensed atoms that are subjected to continuous monitoring of the light leaking out of the cavity. Due to a given detection record of each stochastic realization, individual runs spontaneously break the sym... see more

Torsten Hinkel, Helmut Ritsch and Claudiu Genes

We consider the time dependent dynamics of an atom in a two-color pumped cavity, longitudinally through a side mirror and transversally via direct driving of the atomic dipole. The beating of the two driving frequencies leads to a time dependent effective... see more

Chien-Hao Lin and Yew Kam Ho

In the present work, we report an investigation on quantum entanglement in the doubly excited 2s21Se" role="presentation">2??21????2s21Se 2 s 2 1 S e resonance state of the positronium negative ion by using highly correlated Hylleraas type wave functions... see more

Joel Clementson, Thomas Lennartsson and Peter Beiersdorfer

The extreme ultraviolet (EUV) emission from few-times ionized tungsten atoms has been experimentally studied at the Livermore electron beam ion trap facility. The ions were produced and confined during low-energy operations of the EBIT-I electron beam ion... see more

Thomas J. Elliott, Gabriel Mazzucchi, Wojciech Kozlowski, Santiago F. Caballero-Benitez and Igor B. Mekhov

We study the atom-light interaction in the fully quantum regime, with the focus on off-resonant light scattering into a cavity from ultracold atoms trapped in an optical lattice. The detection of photons allows the quantum nondemolition (QND) measurement ... see more

Shannon Fogwell Hoogerheide, Aung S. Naing, Joan M. Dreiling, Samuel M. Brewer, Nicholas D. Guise and Joseph N. Tan

Highly-ionized atoms with special properties have been proposed for interesting applications, including potential candidates for a new generation of optical atomic clocks at the one part in 1019" role="presentation">10191019 10 19 level of precision, qua... see more

Chaitanya Joshi and Jonas Larson

Prospects for reaching persistent entanglement between two spatially-separated atomic Bose–Einstein condensates are outlined. The system setup comprises two condensates loaded in an optical lattice, which, in return, is confined within a high-Q optical re... see more

Aranya B. Bhattacherjee

We show that a collection of two-level atoms in an optical cavity beyond the rotating wave approximation and in the dispersive-adiabatic and non-dispersive adiabatic regime constitutes a nonlinear medium and is capable of generating squeezed state of ligh... see more

Maria Becker, Adam Caprez and Herman Batelaan

Coupling between electromagnetism and gravity, manifested as the distorted Coulomb field of a charge distribution in a gravitational field, has never been observed. A physical system consisting of an electron in a charged shell provides a coupling that is... see more

Jérôme Deprince and Pascal Quinet

A new set of oscillator strengths and transition probabilities for EUV spectral lines of seven times ionized tungsten (W VIII) is reported in the present paper. These results have been obtained using the pseudo-relativistic Hartree-Fock (HFR) method combi... see more

Alexander Ryabtsev, Edward Kononov, Rimma Kildiyarova, Wan-Ü Lydia Tchang-Brillet, Jean-Francois Wyart, Norbert Champion and Christophe Blaess

The results obtained on the W VIII spectrum as well as on the isoelectronic spectra Lu V, Hf VI, Ta VII, and Re IX in the VUV wavelength region are summarized with emphasis on the main trends along the isoelectronic sequence. A total of 187 lines of W VII... see more