Fast-Pulse Sequences

2003 ◽  
pp. 61-67
Author(s):  
Dominik Weishaupt ◽  
Victor D. Köchli ◽  
Borut Marincek
Keyword(s):  
Pulse Sequences ◽  
Fast Pulse

scholarly journals Fast pulse sequences for dynamically corrected gates in singlet-triplet qubits

2017 ◽  
Vol 96 (19) ◽  
Author(s):  
Robert E. Throckmorton ◽  
Chengxian Zhang ◽  
Xu-Chen Yang ◽  
Xin Wang ◽  
Edwin Barnes ◽  
...  
Keyword(s):  
Pulse Sequences ◽  
Fast Pulse

5285158 NMR angiography using fast pulse sequences with preparatory pulses

1995 ◽  
Vol 13 (1) ◽  
pp. XI
Author(s):  
Charles A Mistretta ◽  
Frank Korosec ◽  
David M Weber ◽  
Thomas Grist
Keyword(s):  
Pulse Sequences ◽  
Fast Pulse

Real-time dynamic 3-T MRI assessment of spine kinematics: a feasibility study utilizing three different fast pulse sequences

2020 ◽  
pp. 028418512091300 ◽  
Author(s):  
William R Walter ◽  
Hamza Alizai ◽  
Mary Bruno ◽  
Salvador Portugal ◽  
Christopher J Burke
Keyword(s):  
Real Time ◽  
Feasibility Study ◽  
Pulse Sequences ◽  
Time Dynamic ◽  
Spine Kinematics ◽  
Fast Pulse

Evaluation of pulse sequences used for magnetic resonance sialography

2001 ◽  
Vol 30 (5) ◽  
pp. 276-284 ◽  
Author(s):  
M Sakamoto ◽  
T Sasano ◽  
S Higano ◽  
S Takahashi ◽  
T Nagasaka ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Pulse Sequences ◽  
Magnetic Resonance Sialography

Efficacy of Contrast Medium Use at 3.0 T: A Study Employing Different T1-weighted Pulse Sequences

2004 ◽  
Vol 176 (03) ◽  
Author(s):  
F Fischbach ◽  
KT Hoffmann ◽  
M Pech ◽  
F Neumann ◽  
J Ricke ◽  
...  
Keyword(s):  
Contrast Medium ◽  
Pulse Sequences ◽  
3.0 T

Designing Generators of Poisson Pulse Sequences Based on the Additive Fibonacci Generators

2017 ◽  
Vol 49 (12) ◽  
pp. 1-13 ◽  
Author(s):  
Vladimir N. Maksymovych ◽  
Oleg I. Harasymchuk ◽  
Marya N. Mandrona
Keyword(s):  
Pulse Sequences

Engineering Electronic Structure to Protect Phase Memory in Molecular Qubits by Minimising Orbital Angular Momentum

2018 ◽  
Author(s):  
Ana Maria Ariciu ◽  
David H. Woen ◽  
Daniel N. Huh ◽  
Lydia Nodaraki ◽  
Andreas Kostopoulos ◽  
...  
Keyword(s):  
Electron Spin ◽  
Quantum Coherence ◽  
Quantum Information Processing ◽  
Pulse Sequences ◽  
Grover Algorithm ◽  
Ligand Shell ◽  
Information Strategies ◽  
Spin Qubit ◽  
Molecular Spin ◽  
The Impact

Using electron spins within molecules for quantum information processing (QIP) was first proposed by Leuenberger and Loss (1), who showed how the Grover algorithm could be mapped onto a Mn12 cage (2). Since then several groups have examined two-level (S = ½) molecular spin systems as possible qubits (3-12). There has also been a report of the implementation of the Grover algorithm in a four-level molecular qudit (13). A major challenge is to protect the spin qubit from noise that causes loss of phase information; strategies to minimize the impact of noise on qubits can be categorized as corrective, reductive, or protective. Corrective approaches allow noise and correct for its impact on the qubit using advanced microwave pulse sequences (3). Reductive approaches reduce the noise by minimising the number of nearby nuclear spins (7-11), and increasing the rigidity of molecules to minimise the effect of vibrations (which can cause a fluctuating magnetic field via spin-orbit coupling) (9,11); this is essentially engineering the ligand shell surrounding the electron spin. A protective approach would seek to make the qubit less sensitive to noise: an example of the protective approach is the use of clock transitions to render spin states immune to magnetic fields at first order (12). Here we present a further protective method that would complement reductive and corrective approaches to enhancing quantum coherence in molecular qubits. The target is a molecular spin qubit with an effective 2S ground state: we achieve this with a family of divalent rare-earth molecules that have negligible magnetic anisotropy such that the isotropic nature of the electron spin renders the qubit markedly less sensitive to magnetic noise, allowing coherent spin manipulations even at room temperature. If combined with the other strategies, we believe this could lead to molecular qubits with substantial advantages over competing qubit proposals.<br>

Optimization of Parameters of RF Pulse Sequences for MRI Investigations in the Presence of Magnetic Nanoparticles

2020 ◽  
Vol 65 (9) ◽  
pp. 1416-1420
Author(s):  
Yu. V. Bogachev ◽  
A. V. Nikitina ◽  
V. V. Frolov ◽  
Ya. Yu. Marchenko ◽  
B. P. Nikolaev
Keyword(s):  
Magnetic Nanoparticles ◽  
Pulse Sequences ◽  
Optimization Of Parameters ◽  
Rf Pulse
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