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Photon Statistics of Photon-Added and Photon-Subtracted Two-Mode Squeezed Vacuum State

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Chinese Physics Letters 1999年第9期16卷 646-647页

作者： lu hong Department of Physics Foshan UniversityFoshan 528000

We introduce states a^(†m) |ξ〉and a^(m)|ξ〉, where |ξ〉is a two-mode squeezed vacuum state. We examine the properties of these states by analytic derivation. Because of the entanglement between the modes of the field, photon adding (or subtracting) for one of the modes results in interesting outcomes. For a two-mode squeezed vacuum state, the effect of annihilation of m a-photons is just the same as creation of m b-photons. Annihilation of photons of mode a (or mode b) actually increases the mean number of photons of mode a and mode b. We also calculate Mandel Q parameter, cross-correlation function and squeezing of the field.

关键词： field. state. vacuum

Crosstalk of HNF4α with extracellular and intracellular signaling pathways in the regulation of hepatic metabolism of drugs and lipids

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Acta Pharmaceutica Sinica B 2016年第5期6卷 393-408页

作者： hong lu Department of Pharmacology SUNY Upstate Medical University

The liver is essential for survival due to its critical role in the regulation of metabolic *** of xenobiotics,such as environmental chemicals and drugs by the liver protects us from toxic effects of these xenobiotics,whereas metabolism of cholesterol,bile acids(BAs),lipids,and glucose provide key building blocks and nutrients to promote the growth or maintain the survival of the *** a wellestablished master regulator of liver development and function,hepatocyte nuclear factor 4 alpha(HNF4α)plays a critical role in regulating a large number of key genes essential for the metabolism of xenobiotics,metabolic wastes,and *** expression and activity of HNF4α is regulated by diverse hormonal and signaling pathways such as growth hormone,glucocorticoids,thyroid hormone,insulin,transforming growth factor-β,estrogen,and ***4α appears to play a central role in orchestrating the transduction of extracellular hormonal signaling and intracellular stress/nutritional signaling onto transcriptional changes in the *** have been a few reviews on the regulation of drug metabolism,lipid metabolism,cell proliferation,and inflammation by HNF4α.However,the knowledge on how the expression and transcriptional activity of HNF4α is modulated remains *** I provide comprehensive review on the regulation of expression and transcriptional activity of HNF4α,and how HNF4α crosstalks with diverse extracellular and intracellular signaling pathways to regulate genes essential in liver pathophysiology.

关键词： HNF4α Liver Drug metabolism Lipid metabolism Inflammation Hormone

Geometric Phases for Mixed States in Trapped Ions

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Communications in Theoretical Physics 2006年第3X期46卷 423-428页

作者： lu hong-Xia Department of Physics and Electronics Huaiyin Teachers College Huaian 213001 China

The generalization of geometric phase from the pure states to the mixed states may have potential applications in constructing geometric quantum gates. We here investigate the mixed state geometric phases and visibilities of the trapped ion system in both non-degenerate and degenerate cases. In the proposed quantum system, the geometric phases are determined by the evolution time, the initial states of trapped ions, and the initial states of photons. Moreover, special periods are gained under which the geometric phases do not change with the initial states changing of photon parts in both non-degenerate and degenerate cases. The high detection efficiency in the ion trap system implies that the mixed state geometric phases proposed here can be easily tested.

关键词： geometric phase mixed state trapped ions

Detection of DNA methylation by hyperbranched rolling circle amplification and DNA microarray

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Chinese Chemical Letters 2014年第12期25卷 1559-1564页

作者： hong Zhao Zu-hong lu Mianyang Normal University State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast University

Aberrant DNA methylation of CpG sites has been confirmed to be closely associated with *** on the hyperbranched rolling circle amplification（HRCA） and microarray techniques,a new method for qualitative detection of methylation was *** the present study,padlock probes hybridize the sample DNA at the methylation site to form a probe-DNA complex which is ligated and digested simultaneously by methylation specific *** at the methylated CpG site is the padlock probe ligated successfully to form a circle template for the HRCA *** the method of 3-dimensional polyacrylamide gel-based microarray,the HRCA product will be immobilized on the slide to form a DNA microarray,which can universally hybridize the Cy3-labeled oligonucleotide probe to detect the methylation status of CpG *** control the false positive signals,DNA ligase and temperature of ligation/digestion are *** status of four CpG sites located in P15,Ecadherin,hMLH1 and MGMT genes were analyzed successfully with this method and all the results were compatible with that of methylation-specific *** research proves that this method is simple and inexpensive,and could be applied as a high-throughput tool to qualitatively determine the methylation status of CpG sites.

关键词： Methylation Padlock probe HRCA Microarray

Crystal growth and electrical transport properties of niobium and tantalum monopnictide and dipnictide semimetals

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Frontiers of physics 2017年第3期12卷 1-17页

作者： hong lu Shuang Jia International Center for Quantum Materials School of Physics Peking University Beijing 100871 China Collaborative Innovation Center of Quantum Matter Beijing 100871 China

The discovery of the first Weyl semimetal tantalum monoarsenide has greatly promoted physical re- search on the niobium and tantalum pnictide compounds. Crystallizing into the NbAs- and OsGe2-type structures, these mono-and di-pnictide semimetals manifest exotic electrical transport properties in magnetic field, which only occur in their single-crystalline forms. All the unusual electrical properties correspond to their poor carriers, which are indeed vulnerable to various crystal defects. In this review article, we present a comprehensive comparison of the crystal growth and electrical transport prop- erties of the two semimetal families. We then discuss in detail the possible characteristic transport features, such as the chiral anomaly of Weyl quasiparticles. We emphasize the importance of crystal growth and sample manipulation for exploring the unique topological properties of Weyl semimetals in the future.

关键词： Weyl semimtal crystal growth electrical transport

A Novel Immune Danger Algorithm for Constrained Multiobjective Optimization

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A Novel Immune Danger Algorithm for Constrained Multiobjecti...

Nonlocal unambiguous discrimination among N nonorthogonal qudit states lying in a higher-dimensional Hilbert space

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作者： hong lu School of Electronic Engineering Huaihai Institute of Technology

ISBN: (纸本)9781467355339

A new immune optimization algorithm for constrained multiobjective optimization problems is designed based on danger theory exhibited in biological immune system. The general situation and running mechanism are presented in this paper. The algorithm identifies "dangerous" as the core idea and introduces antigen presenting cell and different danger signals. Experimental results of constrained multiobjective optimization show that the new algorithm has higher efficiency than traditional immune algorithms.

关键词： Danger Theory Artificial Immune System Constrained Multiobjective Optimization Pareto Optimality

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Science China(Physics,Mechanics & Astronomy) 2012年第1期55卷 55-59页

作者： CHEN LiBing lu hong Department of Photoelectron and Physics Foshan University Foshan 528000 China

We give a strategy for nonlocal unambiguous discrimination (UD) among N linearly independent nonorthogonal qudit states lying in a higher-dimensional Hilbert space. The procedure we use is a nonlocal positive operator valued measurement (POVM) in a direct sum space. This scheme is designed for obtaining the conclusive nonlocal measurement results with a finite probability of success. We construct a quantum network for realizing the nonlocal UD with a set of two-level remote rotations, and thus provide a feasible physical means to realize the nonlocal UD.

关键词： nonlocal unambiguous discrimination linearly independent nonorthogonal states positive operator valued measurement (POVM) remote rotation

Application of Extended Projective Riccati Equation Method to(2+1)-Dimensional Broer-Kaup-Kupershmidt System

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Communications in Theoretical Physics 2008年第10期50卷 814-820页

作者： lu Bin ZHANG hong-Qing Department of Applied Mathematics Dalian University of Technology Dalian 116023 China

In this paper, extended projective Riccati equation method is presented for constructing more new exact solutions of nonlinear differential equations in mathematical physics, which is direct and more powerful than projective Riccati equation method. In order to illustrate the effect of the method, Broer Kaup Kupershmidt system is employed and Jacobi doubly periodic solutions are obtained. This algorithm can also be applied to other nonlinear differential equations.

关键词： nonlinear- partial differential equations extended projective Riccati equation method exact solutions Broer- Kaup Kupershmidt system

Negative corrections to black hole entropy from string theory

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Science China(Physics,Mechanics & Astronomy) 2023年第12期66卷 71-76页

作者： Liang Ma Yi Pang hong lu Center for Joint Quantum Studies and Department of Physics School of ScienceTianjin UniversityTianjin 300350China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207China

We report for the first time that in heterotic string compactified on 4-torus or equivalently IIA string compactified on K3,the leading α′corrections to the rotating black string entropy at fixed conserved charges can be *** further implies that the correction to the mass of extremal rotating string is positive,opposite to the standard expectation from the weak gravity *** result suggests that the validity of positivity of entropy shift due to higher order operators depends on other factors omitted previously in the effective field theory analysis.

关键词： supergravities higher-derivative corrections effective theories black holes quantum gravity string theory