Results 21 to 30 of about 810,157 (254)
Micromotion-enabled improvement of quantum logic gates with trapped ions
New Journal of Physics, 2017 The micromotion of ion crystals confined in Paul traps is usually considered an inconvenient nuisance, and is thus typically minimized in high-precision experiments such as high-fidelity quantum gates for quantum information processing (QIP).
Alejandro Bermudez +4 more
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Fast separation of two trapped ions
New Journal of Physics, 2015 We design fast protocols to separate or recombine two ions in a segmented Paul trap. By inverse engineering the time evolution of the trapping potential composed of a harmonic and a quartic term, it is possible to perform these processes in a few ...
M Palmero +4 more
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Generation of time-bin-encoded photons in an ion-cavity system
New 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
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Ion trapping and cathode bombardment by trapped ions in dc photoguns
Physical Review Special Topics. Accelerators and Beams, 2007 Ion back bombardment is believed to be a main cause of degradation of quantum efficiency of photocathodes in fixed-voltage photoguns. Ions produced in collisions of the electron beam with residual gas in the cathode-anode gap are accelerated towards the ...
E. Pozdeyev
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Determining reaction pathways at low temperatures by isotopic substitution: the case of BeD + + H2O
New 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
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Robust dynamical exchange cooling with trapped ions
New 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
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Engineering generalized Gibbs ensembles with trapped ions
Physical Review Research, 2021 The concept of generalized Gibbs ensembles (GGEs) has been introduced to describe steady states of integrable models. Recent advances show that GGEs can also be stabilized in nearly integrable quantum systems when driven by external fields and open. Here,
Florentin Reiter +5 more
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Para-particles and Quantum Walks in trapped ions [PDF]
, 2020 Quantum simulations provide a useful tool to study a broad range of problems in physics, chemistry, and biology. Trapped ions are a versatile quantum simulator and a main contender for a universal circuit model quantum computer.
Cinthia Huerta Alderete
core
Physical 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
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Modeling ion effects for the Argonne Advanced Photon Source upgrade
Physical 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
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