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Search Results: 1 - 10 of 31370 matches for " Peng Xue "
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Quantum computing with semiconductor double-dot molecules on a chip
Peng Xue
Physics , 2009, DOI: 10.1016/j.physleta.2010.04.042
Abstract: We develop a scalable architecture for quantum computation using controllable electrons of double-dot molecules coupled to a microwave stripline resonator on a chip, which satisfies all Divincenzo criteria. We analyze the performance and stability of all required operations and emphasize that all techniques are feasible with current experimental technologies.
Current Research and Prospect of Dendrobenthamia hongkongensis in China  [PDF]
Longyi Yuan, Peng Lang, Xinghua Xue
Natural Resources (NR) , 2013, DOI: 10.4236/nr.2013.46053

Dendrobenthamia hongkongensis is an excellent ornamental tree species, which has a wide range in germplasm resources distribution and rich varieties within species in China and has also a great development prospect of the new superior species for city landscape. So it is necessary for us to do much research for the development and utilization of this species. According to the latest existing research data of D. hongkongensis, the research achievements of D. hongkongensis in Germplasm resource distribution, bio-ecological habits, breeding and cultivation techniques and so on have been analyzed and summed up. On the other hand, its Ornamental value has been utilized in the modern landscape. At the same time, Edible and Medicinal value of D. hongkongensis has been discussed in the paper as well as Material value of D. hongkongensis. In addition, the future aspects of physiological and ecological research, domestication and breeding new varieties, resource protection and landscape application of D.

Enhanced Bilinear Approach for Sensor Network Self-Localization Using Noisy TOF Measurements  [PDF]
Xue Gao, Le Yang, Li Peng
Journal of Computer and Communications (JCC) , 2014, DOI: 10.4236/jcc.2014.27004

This paper develops a new algorithm for sensor network self-localization, which is an enhanced version of the existing Crocco’s method in [11]. The algorithm explores the noisy time of flight (TOF) measurements that quantify the distances between sensor nodes to be localized and sources also at unknown positions. The newly proposed technique first obtains rough estimates of the sensor node and source positions, and then it refines the estimates via a least squares estimator (LSE). The LSE takes into account the geometrical constraints introduced by the desired global coordinate system to improve performance. Simulations show that the new technique offers superior localization accuracy over the original Crocco’s algorithm under small measurement noise condition.

Entangling Gate of Dipolar Molecules Coupled to a Photonic Crystal

XUE Peng,

中国物理快报 , 2011,
A Controlled Phase Gate with Nitrogen-Vacancy Centers in Nanocrystal Coupled to a Silica Microsphere Cavity

XUE Peng,

中国物理快报 , 2010,
Abstract: We show how a controlled phase gate, induced by adiabatic passage of dark states, can be implemented with the nitrogen-vacancy defects in nanocrystal coupled to the optical whispering gallery mode in a silica microsphere cavity. The gate presented is robust to the fluctuations of the experimental parameters compared to the dynamical and geometric phases gates. The feasibility of this scheme is characterized by exact numerical simulations that incorporate various sources of experiment noise. The results demonstrate the practicality by way of current experimental technologies.
Quantum Memory via Wigner Crystals of Polar Molecules

XUE Peng,

中国物理快报 , 2011,
Decoherence-free spin entanglement generation and purification in nanowire double quantum dots

Xue Peng,

中国物理 B , 2011,
Mathematical Modeling of Hollow-Fiber Membrane System in Biological Wastewater Treatment
Jian PENG,Gaogao XUE
Journal of Systemics, Cybernetics and Informatics , 2006,
Abstract: A set of mathematical models were derived based on the bio-kinetics and material balance principles to describe the performance of membrane system in this research. A synthetic wastewater and a meat packing wastewater were processed through a lab-scale membrane bioreactor system to generate experimental data for calibration and verification of the derived models. For the synthetic wastewater treatment, a high and stable Total Organic Carbon (TOC) removal was achieved with volumetric organic loading from 0.2 to 24.2 kg TOC/m3 (d). It was found that the derived system models fit the experimental data well. The bio-kinetic coefficients of k, Ks, Y and kd in the models were found to be 0.16 d-1, 1.0 mg/L, 1.75 mg Mixed Liquor Volatile Suspended Solids (MLVSS)/mg TOC and 0.11 d-1, respectively. For the meat packing wastewater treatment, the bio-kinetic coefficients of k, Ks, Y and kd were found to be 0.48 d-1, 56.3 mg/L, 0.53 mg MLVSS/mg COD and 0.04 d-1, respectively. F/M ratio of 0.08 was found to be the proper operating condition for the system. Based on the proposed system models, the optimum MLSS concentration and F/M ratio can be computed to yield minimum cost of a membrane bioreactor system without excess biomass production.
Nearest-neighbor coupling asymmetry in the generation of cluster states
Peng Xue,Barry C. Sanders
Physics , 2010, DOI: 10.1103/PhysRevB.82.085326
Abstract: We demonstrate that charge-qubit cluster state generation by capacitive coupling is anisotropic. Specifically, horizontal vs vertical nearest-neighbor inter-qubit coupling differs in a rectangular lattice. We show how to ameliorate this anisotropy by applying potential biases to the array of double dots.
Quantum walk on circles in phase space
Peng Xue,Barry C. Sanders
Physics , 2008, DOI: 10.1088/1367-2630/10/5/053025
Abstract: We propose a variation of the quantum walk on a circle in phase space by conjoining the Hadamard coin flip with simultaneous displacement of the walker's location in phase space and show that this generalization is a proper quantum walk albeit over multiple concentric circles in phase instead of just over one circle. We motivate the conjoining of Hadamard and displacement operations by showing that the Jaynes-Cummings model for coin+walker approximately yields this description in the dispersive limit. The quantum walk signature is evident in the phase distribution of the walker provided that appropriate pulse durations are applied for each coin flip.
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