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162 results on '"Zhu, Gan"'

33. Synchronized Independent Narrow-band Single Photons and Efficient Generation of Photonic Entanglement

Author

Yuan, Zhen-Sheng, Chen, Yu-Ao, Chen, Shuai, Zhao, Bo, Koch, Markus, Strassel, Thorsten, Zhao, Yong, Zhu, Gan-Jun, Schmiedmayer, Jörg, and Pan, Jian-Wei

Subjects
Quantum Physics
Abstract

We create independent, synchronized single-photon sources with built-in quantum memory based on two remote cold atomic ensembles. The synchronized single photons are used to demonstrate efficient generation of entanglement. The resulting entangled photon pairs violate a Bell's Inequality by 5 standard deviations. Our synchronized single photons with their long coherence time of 25 ns and the efficient creation of entanglement serve as an ideal building block for scalable linear optical quantum information processing.

Published
2007
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41. 1H NMR Elucidation of Observed Stable Sugar‐NaCl‐water Complexes in Aqueous Solution.

Author

Zhu, Gan, Li, Hui, Li, Yiqun, and Gu, Liuqun

Subjects
*AQUEOUS solutions, *BIOMASS chemicals, *MONOSACCHARIDES, *CHEMICAL amplification, *ATOMIC interactions, *HYDROGEN bonding, *FRUCTOSE
Abstract

The solvation of sugars in aqueous media matters in the understanding of biological systems and carbohydrate transformations. The presence of NaCl is known to perturb hydrogen bonding of sugar hydrates, however, direct evidence to elucidate mechanism at atom level is very rare even though the "NaCl Effect" was well known in biomass transformations for chemicals/biofuels. Here we report experimental evidences of a clear staircase‐like correlation between induced 1H NMR changes of D‐glucose/fructose with concentration of NaCl aqueous solution at room temperature; and two stable bonding status was observed in the system. HDO in sugar/NaCl aqueous solution as a "dynamic" reference is a key to enable decoupling the global salt effect in this 1H NMR investigation of NaCl‐saccharide interaction. Via a further half‐quantitative study, three structures of stable sugar‐NaCl‐water complexes were mapped for the first time in tackling the NaCl‐monosaccharide interaction at atomic level in an aqueous solution. Based on the maximum of induced 1H NMR shifts, an ideal NaCl usage was proposed. [ABSTRACT FROM AUTHOR]

Published
2023
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