F. B. Dunning, T.C. Killian, S. Yoshida, and J. Burgdörfer Department of Physics and Astronomy and the Rice Quantum Institute, Rice University, Houston, TX 77005-1892, USA Institute for Theoretical Physics, Vienna University of Technology, Vienna, Austria, EU Abstract In this brief review, the opportunities that the alkaline-earth elements afford to study new aspects of Rydberg physics are disc...

We calculate interspecies Rydberg-Rydberg interaction strengths for the heavy alkali metals Rb and Cs. The presence of strong Förster resonances makes interspecies coupling a promising approach for long-range entanglement generation. We also provide an overview of the strongest Förster resonances for Rb-Rb and Cs-Cs using different principal quantum numbers for the two atoms. We show how inters...

The most precise determination of the ionisation and dissociation energies of molecular hydrogen H2 was carried out recently by measuring three intervals independently: the X --> EF interval, the EF --> n = 54p interval, and the electron binding energy of the n = 54p Rydberg state. The values of the ionisation and dissociation energies obtained for H2, and for HD and D2 in similar measurements,...

Strong interactions can amplify quantum effects such that they become important on macroscopic scales. Controlling these coherently on a single-particle level is essential for the tailored preparation of strongly correlated quantum systems and opens up new prospects for quantum technologies. Rydberg atoms offer such strong interactions, which lead to extreme nonlinearities in laser-coupled atom...

Electronic structure calculations of the excited states of the benzene dimer using equation-of-motion coupled-cluster method are reported. The calculations reveal large density of electronic states, including multiple valence, Rydberg, and mixed Rydberg-valence states. The calculations of the oscillator strengths for the transitions between the excimer state (i.e., the lowest excited state of t...

We study the field-ionization threshold behavior when a Rydberg atom is ionized by a short single-cycle pulse field. Both hydrogen and sodium atoms are considered. The required threshold field amplitude is found to scale inversely with the binding energy when the pulse duration becomes shorter than the classical Rydberg period, and, thus, more weakly bound electrons require larger fields for io...

Electron capture by Li ions from aligned Na(25p) Rydberg atoms was measured as a function of the approach angle between the alignment axis of the target-atom wave functions and the ion-beam direction, over a range of reduced velocity ṽ51.0–2.0, where ṽ5v ion /ve . A Stark barrel was used to generate uniform rotatable electric fields over the collision volume and to align Rydberg atoms along the...

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Manipulation Equal Quantum Computation? Ahn et al. (1), in describing the experimental search of a database realized with Rydberg atoms, left the misleading impression that the search constituted quantum computation. Their atomic system, in the words of the accompanying Perspective, “can implement [quantum] algorithms” (2) such as the database-search algorithm proposed by Grover (3, 4). And, ac...

Title of Dissertation: Two Experiments with Cold Atoms: I. Application of Bessel Beams for Atom Optics, and II. Spectroscopic Measurements of Rydberg Blockade Effect Ilya Arakelyan, Doctor of Philosophy, 2010 Dissertation directed by: Prof. Wendell Hill, III Department of Physics In this dissertation we report the results of two experimental projects with lasercooled rubidium atoms: I. Applicat...