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Acta Physica Polonica A

High Resolution Spectroscopy of Cold, Trapped Atoms

Tomasz Brzozowski, Maria Brzozowska, Jerzy Zachorowski, Wojciech Gawlik

Published Nov 1, 2007• 1 citation
Publisher

Abstract

Pump-probe spectroscopy of cold, trapped atoms is discussed with particular attention to mechanisms specific for cold atoms and potential diagnostics applications.The discussion is illustrated with experimental results obtained with 85 Rb atoms trapped in a magneto-optical trap.Most important applications are non-destructive, real-time velocimetry (thermometry) and analysis of optical lattice dynamics.

DOI
10.12693/aphyspola.112.783

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Atoms in highly excited (Rydberg) states have a number of unique properties which make them attractive for applications in quantum information.These are large dipole moments, lifetimes and polarizabilities, as well as strong long-range interactions between Rydberg atoms.Experimental methods of laser cooling and precision spectroscopy enable the trapping and manipulation of single Rydberg atoms and applying them for practical implementation of quantum gates over qubits of a quantum computer based on single neutral atoms in optical traps.In this paper, we give a review of the experimental and theoretical work performed by the authors at the Rzhanov Institute of Semiconductor Physics SB RAS and Novosibirsk State University on laser and microwave spectroscopy of cold Rb Rydberg atoms in a magneto-optical trap and on their possible applications in quantum information.We also give a brief review of studies done by other groups in this area.