\TeX{} 是高德纳 (Donald~E. Knuth) 为排版文字和数学公式而开发的软件\cite{texbook}。 1977 年，正在编写《计算机程序设计艺术 ...
We introduce a class of exactly solvable models with surprising properties. We show that even simple quantum matter is much more entangled than previously believed possible. One then expects more ...
Abstract: Virtual or online learning is revolutionizing American education. It has the potential to dramatically expand the educational opportunities of American students, largely overcoming the ...
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