Extracting Irreversible Dephasing Rates from Electric Dipole Echoes in Rydberg Stark Wave Packets

Journal Article · Sun Nov 30 23:00:00 EST 2008 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.78.063414· OSTI ID:948069

Yoshida, S ^[1]; Reinhold, Carlos O ^[2]; Burgdorfer, J ^[1]; Zhao, W ^[3]; Mestayer, J J ^[3]; Lancaster, J C ^[3]; Dunning, F B ^[3]

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1. Institute for Theoretical Physics, Vienna University of Technology, Austria
2. ORNL
3. Rice University

The precession of an electric dipole moment in an external electric field can be reversed by reversing the field direction. This time-reversal operation allows study of coherence in the time evolution of Rydberg Stark wave packets by measuring the resulting echoes. Different sources of reversible dephasing and irreversible dephasing, i.e., decoherence, are discussed in detail. Stochastic interactions with the environment are simulated in a controlled manner by using artificially synthesized noise. The rate of irreversible dephasing is determined from the reduction of the echo amplitude under multiple field reversals.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 948069
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 6 Vol. 78; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ELECTRIC DIPOLE MOMENTS
ELECTRIC DIPOLES
ELECTRIC FIELDS
PHASE STUDIES
PRECESSION
RYDBERG STATES
WAVE PACKETS