Quantum states of ultracold electronically excited atoms in a magnetic quadrupole trap
Abstract
In this work we present an investigation on the quantum dynamics of ultracold electronically excited atoms exposed to an external magnetic quadrupole field. We present a general Hamiltonian which describes the quantum dynamics of an atom in an arbitrary linear magnetic field. This makes our approach applicable to a wide range of atoms and magnetic field configurations. The system is solved by incorporating an adiabatic separation of the electronic and centerofmass dynamics. We provide the adiabatic energy surfaces and discuss under which conditions trapped centerofmass states can be achieved. We present energies and wave functions of the corresponding quantum states. By analyzing the properties of the combined centerofmass and electronic quantum states we demonstrate that the extension of the electronic wave function can exceed that of the centerofmass motion. Therefore such atoms cannot be considered as being pointlike. A discussion of electromagnetic transitions is also provided.
 Authors:
 Physikalisches Institut, Universitaet Heidelberg, Philosophenweg 12, 69120 Heidelberg (Germany)
 (Germany)
 Publication Date:
 OSTI Identifier:
 20786539
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. A; Journal Volume: 72; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.72.053410; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; CENTEROFMASS SYSTEM; ENERGYLEVEL TRANSITIONS; EXCITED STATES; HAMILTONIANS; MAGNETIC FIELD CONFIGURATIONS; MAGNETIC FIELDS; QUADRUPOLES; RADIATION PRESSURE; SURFACES; TRAPPING; TRAPS; WAVE FUNCTIONS
Citation Formats
Lesanovsky, Igor, Schmelcher, Peter, and Theoretische Chemie, Institut fuer Physikalische Chemie, Universitaet Heidelberg, INF 229, 69120 Heidelberg. Quantum states of ultracold electronically excited atoms in a magnetic quadrupole trap. United States: N. p., 2005.
Web. doi:10.1103/PHYSREVA.72.0.
Lesanovsky, Igor, Schmelcher, Peter, & Theoretische Chemie, Institut fuer Physikalische Chemie, Universitaet Heidelberg, INF 229, 69120 Heidelberg. Quantum states of ultracold electronically excited atoms in a magnetic quadrupole trap. United States. doi:10.1103/PHYSREVA.72.0.
Lesanovsky, Igor, Schmelcher, Peter, and Theoretische Chemie, Institut fuer Physikalische Chemie, Universitaet Heidelberg, INF 229, 69120 Heidelberg. Tue .
"Quantum states of ultracold electronically excited atoms in a magnetic quadrupole trap". United States.
doi:10.1103/PHYSREVA.72.0.
@article{osti_20786539,
title = {Quantum states of ultracold electronically excited atoms in a magnetic quadrupole trap},
author = {Lesanovsky, Igor and Schmelcher, Peter and Theoretische Chemie, Institut fuer Physikalische Chemie, Universitaet Heidelberg, INF 229, 69120 Heidelberg},
abstractNote = {In this work we present an investigation on the quantum dynamics of ultracold electronically excited atoms exposed to an external magnetic quadrupole field. We present a general Hamiltonian which describes the quantum dynamics of an atom in an arbitrary linear magnetic field. This makes our approach applicable to a wide range of atoms and magnetic field configurations. The system is solved by incorporating an adiabatic separation of the electronic and centerofmass dynamics. We provide the adiabatic energy surfaces and discuss under which conditions trapped centerofmass states can be achieved. We present energies and wave functions of the corresponding quantum states. By analyzing the properties of the combined centerofmass and electronic quantum states we demonstrate that the extension of the electronic wave function can exceed that of the centerofmass motion. Therefore such atoms cannot be considered as being pointlike. A discussion of electromagnetic transitions is also provided.},
doi = {10.1103/PHYSREVA.72.0},
journal = {Physical Review. A},
number = 5,
volume = 72,
place = {United States},
year = {Tue Nov 15 00:00:00 EST 2005},
month = {Tue Nov 15 00:00:00 EST 2005}
}

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