q**w
发帖数: 782 | 1 http://www.nature.com/nature/journal/v461/n7268/abs/nature08470.html
Letter
Nature 461, 1265-1268 (29 October 2009) | doi:10.1038/nature08470; Received
17 June 2009; Accepted 27 August 2009
Preserving electron spin coherence in solids by optimal dynamical decoupling
Jiangfeng Du1, Xing Rong1, Nan Zhao2, Ya Wang1, Jiahui Yang1 & R. B. Liu2
1 Hefei National Laboratory for Physical Sciences at Microscale and
Department of Modern Physics, University of Science and Technology of China,
Hefei, Anhui 2 | e*********g
发帖数: 323 | 2 consconsconsconsconsconsconsconsconsconscons
沾點喜氣 | P**l
发帖数: 3722 | | c**s
发帖数: 80 | 4 这篇文章看起来很牛，把UDD用到solid state系统中了。 | s******y
发帖数: 28562 | 5 哇，听起来很牛的样子。
赞一个
Received
decoupling
China,
【在 q**w 的大作中提到】
: http://www.nature.com/nature/journal/v461/n7268/abs/nature08470.html
: Letter
: Nature 461, 1265-1268 (29 October 2009) | doi:10.1038/nature08470; Received
: 17 June 2009; Accepted 27 August 2009
: Preserving electron spin coherence in solids by optimal dynamical decoupling
: Jiangfeng Du1, Xing Rong1, Nan Zhao2, Ya Wang1, Jiahui Yang1 & R. B. Liu2
: 1 Hefei National Laboratory for Physical Sciences at Microscale and
: Department of Modern Physics, University of Science and Technology of China,
: Hefei, Anhui 2
| p******u
发帖数: 215 | | q**w
发帖数: 782 | 7 http://www.nature.com/nature/journal/v461/n7268/abs/nature08470
Letter
Nature 461, 1265-1268 (29 October 2009) | doi:10.1038/nature08470; Received
17 June 2009; Accepted 27 August 2009
Preserving electron spin coherence in solids by optimal dynamical decoupling
Jiangfeng Du1, Xing Rong1, Nan Zhao2, Ya Wang1, Jiahui Yang1 & R. B. Liu2
1 Hefei National Laboratory for Physical Sciences at Microscale and
Department of Modern Physics, University of Science and Technology of China,
Hefei, Anhui 230026, China
2 Department of Physics, The Chinese University of Hong Kong, Shatin, New
Territories, Hong Kong, China
Correspondence to: Jiangfeng Du1R. B. Liu2 Correspondence and requests for
materials should be addressed to J.D. (Email: d*[email protected]) or R.B.L. (
Email: r***[email protected]).
Top of pageTo exploit the quantum coherence of electron spins in solids in
future technologies such as quantum computing1, 2, it is first vital to
overcome the problem of spin decoherence due to their coupling to the noisy
environment. Dynamical decoupling3, 4, 5, 6, 7, 8, 9, which uses
stroboscopic spin flips to give an average coupling to the environment that
is effectively zero, is a particularly promising strategy for combating
decoherence because it can be naturally integrated with other desired
functionalities, such as quantum gates. Errors are inevitably introduced in
each spin flip, so it is desirable to minimize the number of control pulses
used to realize dynamical decoupling having a given level of precision. Such
optimal dynamical decoupling sequences have recently been explored9, 10, 11
, 12. The experimental realization of optimal dynamical decoupling in solid-
state systems, however, remains elusive. Here we use pulsed electron
paramagnetic resonance to demonstrate experimentally optimal dynamical
decoupling for preserving electron spin coherence in irradiated malonic acid
crystals at temperatures from 50 K to room temperature. Using a seven-pulse
optimal dynamical decoupling sequence, we prolonged the spin coherence time
to about 30 s; it would otherwise be about 0.04 s without control or 6.2 s
under one-pulse control. By comparing experiments with microscopic theories,
we have identified the relevant electron spin decoherence mechanisms in the
solid. Optimal dynamical decoupling may be applied to other solid-state
systems, such as diamonds with nitrogen-vacancy centres13, 14, 15, and so
lay the foundation for quantum coherence control of spins in solids at room
temperature | e*********g
发帖数: 323 | 8 consconsconsconsconsconsconsconsconsconscons
沾點喜氣 | P**l
发帖数: 3722 | | c**s
发帖数: 80 | 10 这篇文章看起来很牛，把UDD用到solid state系统中了。 | | | s******y
发帖数: 28562 | 11 哇，听起来很牛的样子。
赞一个
Received
decoupling
China,
【在 q**w 的大作中提到】
: http://www.nature.com/nature/journal/v461/n7268/abs/nature08470
: Letter
: Nature 461, 1265-1268 (29 October 2009) | doi:10.1038/nature08470; Received
: 17 June 2009; Accepted 27 August 2009
: Preserving electron spin coherence in solids by optimal dynamical decoupling
: Jiangfeng Du1, Xing Rong1, Nan Zhao2, Ya Wang1, Jiahui Yang1 & R. B. Liu2
: 1 Hefei National Laboratory for Physical Sciences at Microscale and
: Department of Modern Physics, University of Science and Technology of China,
: Hefei, Anhui 230026, China
: 2 Department of Physics, The Chinese University of Hong Kong, Shatin, New
| a*****v
发帖数: 128 | | p******u
发帖数: 215 | | a*****v
发帖数: 128 | | h*****w
发帖数: 99 | | T*****u
发帖数: 7103 | 16 难道有跳槽的想法
【在 h*****w 的大作中提到】
: Du作为大老板当一作，有点奇怪
|
|
