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Study Findings on Astrophysics Research Are Outlined in Reports from Y.K. Zhao and Colleagues (Long time evolution of a spin interacting with a spin...

July 1, 2014



Study Findings on Astrophysics Research Are Outlined in Reports from Y.K. Zhao and Colleagues (Long time evolution of a spin interacting with a spin bath in arbitrary magnetic field)

By a News Reporter-Staff News Editor at Physics Week -- Investigators discuss new findings in Astrophysics Research. According to news reporting out of Jinan, People's Republic of China, by VerticalNews editors, research stated, "We introduce a completely different method to calculate the evolution of a spin interacting with a sufficient large spin bath, especially suitable for treating the central spin model in a quantum dot (QD)."

Our news journalists obtained a quote from the research, "With only an approximation on the envelope of central spin, the symmetry can be exploited to reduce a huge Hilbert space which cannot be calculated with computers to many small ones which can be solved exactly. This method can be used to calculate spin-bath evolution for a spin bath containing many (say, 1000) spins, without a perturbative limit such as strong magnetic field condition, and works for long-time regime with sufficient accuracy."

According to the news editors, the research concluded: "As the spin-bath evolution can be calculated for a wide range of time and magnetic field, an optimal dynamic of spin flip-flop can be found, and more sophisticated approaches to achieve extremely high polarization of nuclear spins in a QD could be developed."

For more information on this research see: Long time evolution of a spin interacting with a spin bath in arbitrary magnetic field. Science China-Physics Mechanics & Astronomy, 2014;57(7):1262-1265. Science China-Physics Mechanics & Astronomy can be contacted at: Science Press, 16 Donghuangchenggen North St, Beijing 100717, Peoples R China.

Our news journalists report that additional information may be obtained by contacting Y.K. Zhao, Shandong Inst Quantum Sci & Technol Co Ltd, Jinan 250101, People's Republic of China. Additional authors for this research include M.S. Zhao and Z.B. Chen.

Keywords for this news article include: Asia, Jinan, Astrophysics Research, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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