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Jin, Xing-Ri,Park, Jinwoo,Zheng, Haiyu,Lee, Seongjae,Lee, YoungPak,Rhee, Joo Yull,Kim, Ki Won,Cheong, H S,Jang, Won Ho Optical Society of America 2011 Optics express Vol.19 No.22
<P>Using a planar metamaterial, which consists of two silver strips, we theoretically demonstrate the plasmonic electromagnetically-induced transparency (EIT)-like spectral response at optical frequencies. The two silver strips serve as the bright modes, and are excited strongly by the incident wave. Based on the weak hybridization between the two bright modes, a highly-dispersive plasmonic EIT-like spectral response appears in our scheme. Moreover, the group index is higher than that of another scheme which utilizes the strong coupling between the bright and dark modes.</P>
The evolution property of four-body concurrence in Jaynes-Cummings model
Xing-Ri JIN,Shou ZHANG,Bo-Xue LIU,Chung-In UM,Kyu-Hwang YEON 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.4
We realized the four-body approximate W state by the interaction of two atoms and two mode vacuum cavity fields, no matter that the two atoms are initially in Einstein-Podolsky-Rosen entangled states or in disentangled states. The four-body entanglement changes with the initial state of the system and the detuning degree. What’s important is that when the two atoms are initially in Einstein-Podolsky-Rosen, the entanglement of atom-atom and field-field can reach a maximal value of 1. Also if the two atoms are initially in disentangled tates, the entanglement of atom-atom andfield-field won’t go beyond 1/2.
Nan, Ji-Xing,Jin, Xue-Jun,Lian, Li-Hua,Cai, Xing Fu,Jiang, Ying-Zi,Jin, Hong Ri,Lee, Jung Joon Pharmaceutical Society of Japan 2008 Biological & pharmaceutical bulletin Vol.31 No.4
<P>The hepatoprotective effects of a diterpenoid acanthoic acid isolated from <I>Acanthopanax koreanum</I> N<SMALL>AKAI </SMALL>were evaluated in a <SMALL>D</SMALL>-galactosamine/lipopolysaccharide-induced fulminant hepatic failure mouse model. Mice were pretreated orally with acanthoic acid 12 and 1 h before intraperitoneal injection of <SMALL>D</SMALL>-galactosamine and lipopolysaccharide. Pretreatment with the compound markedly reduced lethal liver injury in experimental animals. The effects were likely associated with a significant decrease in serum tumor necrosis factor (TNF)-α levels, which are correlated not only with those of alanine aminotransferase and aspartate aminotransferase but also with the reduced number of apoptotic hepatocytes in the liver as confirmed using the terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling method and DNA fragmentation assay. These results suggest that acanthoic acid protects against <SMALL>D</SMALL>-galactosamine/lipopolysaccharide-induced fulminant liver failure at least in part by a mechanism associated with the down-regulation of TNF-α secretion.</P>
Xiao-Qiang, Shao,Jing-Ji, Wen,Xing-Ri, Jin,Ai-Dong, Zhu,Shou, Zhang,Kyu-Hwang, Yeon Science Press 2007 Chinese physics letters Vol.24 No.10
<P>A scheme for implementing a Fredkin gate with an atom sent through a microwave cavity is proposed. The scheme is based on the resonant atom-cavity interaction so that the gating time is sharply short, which is important in view of decoherence.</P>
Generation of Quantum Phase Gates via an Unconventional Geometric Phase Shift in an Ion-Trap System
Ying-Qiao Zhang,Shou Zhang,연규황,Xing-Ri Jin 한국물리학회 2007 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.51 No.5
We propose a scheme to generate a quantum phase gate via an unconventional geometric phase shift in an ion-trap system. Since the gate time is only related to the frequency of the vibrational mode, the present scheme, based on the resonant interaction of the trapped ions with a standing-wave laser beam, requires a much shorter gate time than the scheme based on the resonant interaction of the atoms and the cavity. Also the heating effect of the vibrational mode is negligible under certain conditions. We propose a scheme to generate a quantum phase gate via an unconventional geometric phase shift in an ion-trap system. Since the gate time is only related to the frequency of the vibrational mode, the present scheme, based on the resonant interaction of the trapped ions with a standing-wave laser beam, requires a much shorter gate time than the scheme based on the resonant interaction of the atoms and the cavity. Also the heating effect of the vibrational mode is negligible under certain conditions.