Zobrazeno 1 - 10
of 931
pro vyhledávání: '"R Blatt"'
Publikováno v:
New Journal of Physics, Vol 22, Iss 10, p 103013 (2020)
We present experiments on polarization gradient cooling of Ca ^+ multi-ion Coulomb crystals in a linear Paul trap. Polarization gradient cooling of the collective modes of motion whose eigenvectors have overlap with the symmetry axis of the trap is a
Externí odkaz:
https://doaj.org/article/57c2016966d646a7a37b1c48fa047bac
Publikováno v:
New Journal of Physics, Vol 22, Iss 10, p 103024 (2020)
We propose a new protocol to implement ultra-fast two-qubit phase gates with trapped ions using spin-dependent kicks induced by resonant transitions. By only optimizing the allocation of the arrival times in a pulse train sequence the gate is impleme
Externí odkaz:
https://doaj.org/article/6f31f8e5e0114e64adfd02fe8699bb9a
Publikováno v:
New Journal of Physics, Vol 21, Iss 7, p 073017 (2019)
Fast entangling quantum gates can significantly enhance the performance of a trapped-ion quantum computer. In pursuit of implementing a fast two-qubit gate, we investigate the coherent excitation of a ^40 Ca ^+ ion with a train of picosecond pulses r
Externí odkaz:
https://doaj.org/article/41dd832861cd46a1bef80d1290fe04bf
Publikováno v:
New Journal of Physics, Vol 21, Iss 10, p 103003 (2019)
We perform quantum logic spectroscopy with a ^27 Al ^+ / ^40 Ca ^+ mixed ion crystal in a linear Paul trap for a measurement of the ${(3{s}^{2}){}^{1}{{\rm{S}}}_{0}\leftrightarrow (3s3p)}^{3}{{\rm{P}}}_{1},F=7/2$ intercombination transition in ^27 Al
Externí odkaz:
https://doaj.org/article/8076f1029ffb41659d9380ee1ce52e6e
Publikováno v:
New Journal of Physics, Vol 18, Iss 2, p 023047 (2016)
One path to realizing systems of trapped atomic ions suitable for large-scale quantum computing and simulation is to create a two-dimensional (2D) array of ion traps. Interactions between nearest-neighbouring ions could then be turned on and off by t
Externí odkaz:
https://doaj.org/article/7229767de82a408582059ea77e184f17
Publikováno v:
New Journal of Physics, Vol 18, Iss 9, p 093038 (2016)
Single atoms or atom-like emitters are the purest source of single photons, they are intrinsically incapable of multi-photon emission. To demonstrate this degree of photon number-state purity we have realized a single-photon source using a single ion
Externí odkaz:
https://doaj.org/article/b57ab5721e694d23b1e20ead3e37b2ff
Publikováno v:
New Journal of Physics, Vol 17, Iss 10, p 103001 (2015)
We investigate the dynamics of an ion sympathetically cooled by another laser-cooled ion or small ion crystal. To this end, we develop simple models of the cooling dynamics in the limit of weak Coulomb interactions. Experimentally, we create a two-io
Externí odkaz:
https://doaj.org/article/e72e72154ee74ebb8f81a1093bb89fcc
Autor:
Madeleine Seale, Oleksandr Zhdanov, Merel B Soons, Cathal Cummins, Erika Kroll, Michael R Blatt, Hossein Zare-Behtash, Angela Busse, Enrico Mastropaolo, James M Bullock, Ignazio M Viola, Naomi Nakayama
Publikováno v:
eLife, Vol 11 (2022)
Animal migration is highly sensitised to environmental cues, but plant dispersal is considered largely passive. The common dandelion, Taraxacum officinale, bears an intricate haired pappus facilitating flight. The pappus enables the formation of a se
Externí odkaz:
https://doaj.org/article/3a7a631f615243c6b099f60b19cac4cf
Publikováno v:
Revista Brasileira de Farmácia Hospitalar e Serviços de Saúde, Vol 13, Iss 2 (2022)
Objective: to identify the frequency of DILI inpatients from abnormal liver enzyme levels using the updated Roussel Uclaf Causality Assessment Method (RUCAM) causality assessment algorithm, as well as to provide a descriptive analysis of DILI cases.
Externí odkaz:
https://doaj.org/article/0fc42f0b5d5649bfbfed2a523a78cb25
Publikováno v:
AERA Open, Vol 7 (2021)
The social experience of transitioning to a 4-year university varies widely among students. Some attend with few or no prior contacts or acquaintances from their hometown; others attend with a large network of high school alumni. Using a sample (N =
Externí odkaz:
https://doaj.org/article/d8b7ad61c401457787d47d309bf87713