Results 11 to 20 of about 60,967 (160)

Parametric excitations of trapped ions in a linear rf ion trap [PDF]

open access: yesPhysical Review A, 2002
The parametric resonant behavior of ions inside a linear rf ion trap is studied both theoretically and experimentally. Theoretically, the resonant motion of ions inside an ideal ion trap is described by approximating the trapping rf field as a harmonic pseudopotential with the ions being excited by an additional quadrupolar ac voltage.
X. Zhao, V. L. Ryjkov, H. A. Schuessler
openaire   +1 more source

Detecting Vacuum Entanglement in a Linear Ion Trap [PDF]

open access: yesPhysical Review Letters, 2005
We propose and study a method for detecting ground-state entanglement in a chain of trapped ions, which realizes a suggested scheme for detecting vacuum entanglement in quantum field theory. We show that the entanglement between single ions or groups of ions can be swapped to the internal levels of two ions by sending laser pulses that couple the ...
Retzker, A., Cirac, J., Reznik, B.
openaire   +4 more sources

Automated Generation of Shuttling Sequences for a Linear Segmented Ion Trap Quantum Computer [PDF]

open access: yesQuantum, 2023
A promising approach for scaling-up trapped-ion quantum computer platforms is by storing multiple trapped-ion qubit sets ('ion crystals') in segmented microchip traps and to interconnect these via physical movement of the ions ('shuttling').
Jonathan Durandau   +6 more
doaj   +1 more source

Determination of Vancomycin in Serum by Quadrupole-Linear Ion Trap Tandem Mass Spectrometry [PDF]

open access: yesZhipu Xuebao, 2023
The demand for accurate mass spectrometry measurement in the field of clinical diagnosis is increasing. In the face of foreign monopoly, our team has developed new technologies and new methods for the selective enrichment of trace targets in complex ...
XIE Jie1;LI Zi-ying1,2;QU Zi-yu1;YI Ke-ke1;LIU Hao3;LI Jia-lian1;ZHANG Di1;HUANG Ze-jian1;WANG Han-wen3;SHI Zheng-yuan4;YAN Dan4;YU Xiao-ping2;JIANG You1;DAI Xin-hua1;FANG Xiang1
doaj   +1 more source

Linear mode-mixing of phonons with trapped ions [PDF]

open access: yesApplied Physics B, 2016
We propose a method to manipulate the normal modes in a chain of trapped ions using only two lasers. Linear chains of trapped ions have proven experimentally to be highly controllable quantum systems with a variety of refined techniques for preparation, evolution, and readout, however, typically for quantum information processing applications people ...
Kevin Marshall, Daniel F. V. James
openaire   +2 more sources

Lipidomic analysis of Porphyromonas gingivalis reveals novel glycerol bisphosphoceramide, phosphatidyl-, and phosphoglycerol dipeptide lipid families

open access: yesJournal of Lipid Research, 2023
Porphyromonas gingivalis, like other members of the phylum Bacteroidetes (synonym Bacteroidota), synthesizes several classes of dihydroceramides and peptidolipids.
Brian A. Kleiboeker   +3 more
doaj   +1 more source

Fragmentation of ions in a low pressure linear ion trap [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2007
The efficiency of in-trap fragmentation in a low-pressure linear ion trap (LIT), using dipolar excitation, is dependent upon the choice of both the excitation q and the drive frequency of the quadrupole. In the work presented here, fragmentation efficiencies have been measured as a function of excitation q for drive frequencies of 816 kHz and 1.228 MHz.
openaire   +2 more sources

Direct observation of ion micromotion in a linear Paul trap [PDF]

open access: yesPhysical Review A, 2021
6 pages, 5 ...
Liudmila A. Zhukas   +4 more
openaire   +3 more sources

Phytochemical profiling of the stem bark of Betula utilis from different geographical regions of India using UHPLC‐ESI‐MS/MS

open access: yesAnalytical Science Advances, 2021
A simple, rapid, sensitive, and reliable ultra‐high‐performance liquid chromatography‐hybrid linear ion trap triple quadrupole mass spectrometry method was developed and validated for simultaneous determination of 10 bioactive compounds in stem bark of ...
Tripti Mishra   +7 more
doaj   +1 more source

Cold ion beam in a storage ring as a platform for large-scale quantum computers and simulators: Challenges and directions for research and development

open access: yesPhysical Review Accelerators and Beams, 2021
The purpose of this paper is to evaluate the possibility of constructing a large-scale storage-ring-type ion-trap system capable of storing, cooling, and controlling a large number of ions as a platform for scalable quantum computing (QC) and quantum ...
T. Shaftan, Boris B. Blinov
doaj   +1 more source

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