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Physicists Cross Hurdle in Quantum Manipulation of Matter



Spins of nitrogen-vacancy (NV) centers in diamond (center photo— bright spots, denoted as orange arrow on left figure) interact with a bath of environmental spins (green arrows). The environmental spins interact with the N-V spins, and destroy their fragile quantum state. By applying a specially designed sequence with more and more pulses, the lifetime of the quantum spin state can be significantly extended right figure).

  1. G. de Lange, Z. H. Wang, D. Riste, V. V. Dobrovitski, R. Hanson. Universal Dynamical Decoupling of a Single Solid-State Spin from a Spin BathScience, 2010; DOI:10.1126/science.1192739

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