Yuri Rozhdestvensky | Searcharxiv

arXiv2012

2D atom localization in a four-level tripod system in laser fields

We propose a scheme for two-dimensional (2D) atom localization in a four-level tripod system under an influence of two orthogonal standing-wave fields. Position information of the atom is retained in the atomic internal states by an additional probe field either of a standing or of a running wave. It is shown that the localization factors depend crucially on the atom-field coupling that results in such spatial structures of populations as spikes, craters and waves. We demonstrate a high-precision localization due to measurement of population in the upper state or in any ground state.

physics.atom-ph↗

arXiv2007

Open-Loop Control of Quantum Particle Motion: Effective Splitting in Momentum Space

In this paper an effective quantum particle beam-splitter in the momentum space is realized in the frame of open-loop control scheme. We demonstrate for small interaction time that the splitting effect $\pm40\hbar k$ with summarized relative intensity in both main components is about 50 per cent from initial intensity of the atomic beam.

quant-ph↗