منابع مشابه
Sub-Riemannian geometry and time optimal control of three spin systems: Quantum gates and coherence transfer
Radio-frequency pulses are used in nuclear-magnetic-resonance spectroscopy to produce unitary transfer of states. Pulse sequences that accomplish a desired transfer should be as short as possible in order to minimize the effects of relaxation, and to optimize the sensitivity of the experiments. Many coherence-transfer experiments in NMR, involving a network of coupled spins, use temporary spin ...
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In spite of great advances in the theory and applications of magnetic resonance in the past 50 years, some basic questions in spin physics have not yet been answered. In the absence of relaxation losses, what is the maximum amount of coherence that can be transferred between coupled spins under general coupling tensors in a given time and how can this be realized experimentally? Since transfer ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2012
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.86.054302