Journal ArticleDOI
Collisional Population Trapping and Optical Deexcitation of Ytterbium Ions in a Radiofrequency Trap
A. Bauch,D. Schnier,Chr. Tamm +2 more
TLDR
In this article, the authors describe and discuss experiments related to the phenomenon of population trapping of ytterbium ions in the extremely long-lived 4f13 6s2 2F7/2 level ion clouds are confined in a radiofrequency trap in the presence of helium buffer gas.Abstract:
We describe and discuss experiments related to the phenomenon of population trapping of ytterbium ions in the extremely long-lived 4f13 6s2 2F7/2 level Ion clouds are confined in a radiofrequency trap in the presence of helium buffer gas The experimental set-up permits electronic ion detection, the observation of resonance fluorescence, and optical excitation at alternating wavelengths to excite either the 2S1/2–2P1/2 resonance transition, or transitions of similar wavelength which provide optical deexcitation of ions from the 2F7/2 level to the ground state The observed dependence of the population trapping rates on helium pressure is attributed to the effect of fine structure mixing collisions The transitions which deexcite ions from the 2F7/2 state show Lorentzian lineshapes with widths of 6–10 GHz and resonance wavelengths which are in significant disagreement with tabulated level positionsread more
Citations
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Journal ArticleDOI
Quantum Teleportation Between Distant Matter Qubits
TL;DR: A quantum bit stored in a single trapped ytterbium ion (Yb+) is teleported to a second Yb+ atom with an average fidelity of 90% over a replete set of states.
Journal ArticleDOI
Manipulation and detection of a trapped Yb+ hyperfine qubit
Steven Olmschenk,Steven Olmschenk,Kelly C. Younge,D. L. Moehring,Dzmitry Matsukevich,Dzmitry Matsukevich,Peter Maunz,Peter Maunz,Christopher Monroe,Christopher Monroe +9 more
TL;DR: In this article, the use of trapped ytterbium ions as quantum bits for quantum information processing was demonstrated and the high efficiency and high fidelity of these operations was achieved through the stabilization and frequency modulation of relevant laser sources.
Journal ArticleDOI
Stray-field-induced quadrupole shift and absolute frequency of the 688-THz {sup 171}Yb{sup +} single-ion optical frequency standard
TL;DR: In this paper, a single ion is confined in a cylindrically symmetric radiofrequency Paul trap, and the reference transition is the {sup 2}S{sub 1/2}(F=0)-{sup 2 D{sub 3/2](F{sup '}=2) electric quadrupole transition at 688 THz.
Journal ArticleDOI
Trapped-ion and trapped-atom microwave frequency standards
TL;DR: The stability and accuracy of atomic microwave frequency standards (atomic clocks) have been improving at a rate exceeding one order of magnitude per decade for the past 30 years and there is no reason to suspect that this rate of progress is slowing.
Journal ArticleDOI
Current perspectives on the physics of trapped ions
TL;DR: In this article, a survey of recent work in the field of trapped ion physics is presented, together with their application to frequency standards and fundamental measurements, as an introduction to this Journal of Modern Optics special issue.
References
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Book
The theory of atomic collisions
TL;DR: The perturbation theory has been applied to many-body problems and applications, such as electron collisions with atoms, collisions between atomic systems, nuclear collisions, and certain aspects of two-body systems under relativistic collisions.
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Radiation-Pressure Cooling of Bound Resonant Absorbers
TL;DR: In this article, the first observation of radiation-pressure cooling on a system of resonant absorbers which are elastically bound to a laboratory fixed apparatus was reported, and they were cooled to 40 K by irradiating them with the 8-ensuremath{\mu}W output of a frequency doubled, single-mode dye laser tuned to the low-frequency side of the Doppler profile on the $S 2S 1/2
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Observation of quantum jumps.
TL;DR: They were mostly considered, at that time and even later, a kind of artifact of Bohr's model of the atom whose real existence was questionable and, anyway, not to be verified with the common large atomic ensembles.
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Population trapping in excited Yb ions.
TL;DR: In this paper, the lifetime of this level was measured to be greater than 8 days and its potentiality for ultimate-resolution laser spectroscopy indicated, under both narrow and broad-band laser excitation conditions.