Results 31 to 40 of about 234,381 (288)

Robust dynamical exchange cooling with trapped ions

open access: yesNew Journal of Physics, 2020
We investigate theoretically the possibility for robust and fast cooling of a trapped atomic ion by transient interaction with a pre-cooled ion. The transient coupling is achieved through dynamical control of the ions’ equilibrium positions.
T Sägesser, R Matt, R Oswald, J P Home
doaj   +1 more source

Entanglement in the dispersive interaction of trapped ions with a quantized field [PDF]

open access: yes, 2006
The mode-mode entanglement between trapped ions and cavity fields is investigated in the dispersive regime. We show how a simple initial preparation of Gaussian coherent states and a postselection may be used to generate motional non-local mesoscopic ...
F. L. Semião   +7 more
core   +2 more sources

Pattern Formation with Trapped Ions

open access: yesPhysical Review Letters, 2011
4 pages ...
Lee, Tony E., Cross, M. C.
openaire   +5 more sources

Generation of time-bin-encoded photons in an ion-cavity system

open access: yesNew Journal of Physics, 2022
We investigate two single-photon generation schemes and compare their suitability for use in time-bin entanglement encoding. A trapped ion coupled to an optical cavity produces single photons through a cavity-assisted Raman transition.
Travers Ward, Matthias Keller
doaj   +1 more source

Determining reaction pathways at low temperatures by isotopic substitution: the case of BeD + + H2O

open access: yesNew Journal of Physics, 2021
Trapped Be ^+ ions are a leading platform for quantum information science (Gaebler et al 2016 Phys. Rev. Lett. 117 060505 117 117 060505 ), but reactions with background gas species, such as H _2 and H _2 O, result in qubit loss.
Tiangang Yang   +5 more
doaj   +1 more source

Wavelength-Scale Imaging of Trapped Ions using a Phase Fresnel lens [PDF]

open access: yes, 2011
A microfabricated phase Fresnel lens was used to image ytterbium ions trapped in a radio frequency Paul trap. The ions were laser cooled close to the Doppler limit on the 369.5 nm transition, reducing the ion motion so that each ion formed a near point ...
A. Jechow   +31 more
core   +2 more sources

Experimental implementation of laser cooling of trapped ions in strongly inhomogeneous magnetic fields

open access: yesPhysical Review Research, 2023
We demonstrate the Doppler laser cooling of ^{40}Ca^{+} ions confined in a segmented linear Paul trap in the presence of a strong quadrupolar magnetic field generated by two permanent ring magnets.
Christian Mangeng   +3 more
doaj   +1 more source

Quantum Zeno Effect in Trapped Ions [PDF]

open access: yes, 2001
A "continuous measurement" Quantum Zeno Effect (QZE) in the context of trapped ions is predicted. We describe the physical system and study its exact time evolution showing the appearance of Zeno Phenomena.
A. Messina   +21 more
core   +2 more sources

Modeling ion effects for the Argonne Advanced Photon Source upgrade

open access: yesPhysical Review Accelerators and Beams, 2019
Ions are produced in an accelerator when the beam ionizes residual gas inside the vacuum chamber. If the beam is negatively charged, ions can become trapped in the beams potential, and their density will increase over time.
J. Calvey, M. Borland
doaj   +1 more source

Phase Control of Trapped Ion Quantum Gates [PDF]

open access: yes, 2005
There are several known schemes for entangling trapped ion quantum bits for large-scale quantum computation. Most are based on an interaction between the ions and external optical fields, coupling internal qubit states of trapped-ions to their Coulomb ...
C Monroe   +13 more
core   +2 more sources

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