Thermo-acoustic wave propagation and reflection near the liquid-gas critical point (2008)
Thermo-acoustic wave propagation and reflection near liquid-gas critical point is studied, and our results are compared to a recent ultra-sensitive interferometry measurement in near-critical CO2 [Y....
Hu, X. Q., Lu, N. M., Niu, T., Zhang, P.
This paper describes an operational retrieval algorithm for the sand/dust storm (SDS) from FY-2C/S-VISSR (Stretched ? Visible and Infrared Spin-Scan Radiometer) developed at the National Satellite...
Hu, X. Q., Lu, N. M., Niu, T., Zhang, P.
This paper describes an operational retrieval algorithm for the sand/dust storm (SDS) from FY-2C/S-VISSR (Stretched ? Visible and Infrared Spin-Scan Radiometer) developed at the National Satellite...
Hu, X. Q., Lu, N. M., Niu, T., Zhang, P.
This paper describes an operational retrieval algorithm for the sand/dust storm (SDS) from FY-2C/S-VISSR (Stretched-Visible and Infrared Spin-Scan Radiometer) developed at the National Satellite...
Hu, X. Q., Lu, N. M., Niu, T., Zhang, P.
This paper describes an operational retrieval algorithm for the sand/dust storm (SDS) from FY-2C/S-VISSR (Stretched-Visible and Infrared Spin-Scan Radiometer) developed at the National Satellite...
Density dependence of spin relaxation in GaAs quantum well at room temperature (2008)
Teng, L. H., Zhang, P., Lai, T. S., Wu, M. W.
Carrier density dependence of electron spin relaxation in an intrinsic GaAs quantum well is investigated at room temperature using time-resolved circularly polarized pump-probe spectroscopy. It is...
Zhang, P., Zhou, J., Wu, M. W.
Multi-valley spin relaxation in $n$-type GaAs quantum wells with in-plane electric field is investigated at high temperature by means of kinetic spin Bloch equation approach. The spin relaxation time...
Tang, N.J., Liu, J., Coenraads, P.J., Dong, L., Zhao, L.J., Ma, S.W., ...
Occupational exposure to certain polychlorinated aromatic hydrocarbons such as dioxins has been suggested to cause chloracne which is a kind of skin disease. The molecular mechanisms of...
On Fault Detection in Linear Discrete-Time, Periodic, and Sampled-Data Systems (2008)
This paper gives a review of some standard fault-detection (FD) problem formulations in discrete linear time-invariant systems and the available solutions. Based on it, recent development of FD in...
Low energy H+CO scattering revisited: CO rotational excitation with new potential surfaces (2007)
Shepler, B. C., Yang, B. H., Kumar, T. J. Dhilip, Stancil, P. C., Bowman, J. M., Balakrishnan, N., ...
A recent modeling study of brightness ratios for CO rotational transitions in gas typical of the diffuse ISM by Liszt found the role of H collisions to be more important than previously assumed. This...
Non-Markovian hole spin kinetics in $p$-type GaAs quantum wells (2007)
Based on fully microscopic kinetic spin Bloch equation approach, we show the non-Markovian effect in spin dephasing of heavy holes in $p$-type GaAs quantum wells. The non-Markovian effect manifests...
Geometric phase of an atom inside an adiabatic radio frequency potential (2007)
We investigate the geometric phase of an atom inside an adiabatic radio frequency (rf) potential created from a static magnetic field (B-field) and a time dependent rf field. The spatial motion of...
Abbott, B., Abbott, R., Adhikari, R., Agresti, J., Ajith, P., Allen, Bruce, ...
Data from the LIGO Livingston interferometer and the ALLEGRO resonant bar detector, taken during LIGO's fourth science run, were examined for cross-correlations indicative of a stochastic...
The angular momentum of a magnetically trapped atomic condensate (2006)
Zhang, P., Jen, H. H., Sun, C. P., You, L.
For an atomic condensate in an axially symmetric magnetic trap, the sum of the axial components of the orbital angular momentum and the hyperfine spin is conserved. Inside an Ioffe-Pritchard trap...
Geometric phase of an atom in a magnetic storage ring (2006)
A magnetically trapped atom experiences an adiabatic geometric (Berry's) phase due to changing field direction. We investigate theoretically such an Aharonov-Bohm-like geometric phase for atoms...
Chen, Shouyuan, Rever, Matthew, Zhang, P., Theobald, W., Umstadter, Donald P.
A nonlinear optical phenomenon, relativistic cross-phase modulation, is reported. A relativistically intense light beam (I=1.3Ã1018 W cm-2, λ =1.05 μm) is experimentally observed to cause phase...
Controlled splitting of an atomic wave packet (2006)
Zhang, M., Zhang, P., Chapman, M. S., You, L.
We propose a simple scheme capable of adiabatically splitting an atomic wave packet using two independent translating traps. Implemented with optical dipole traps, our scheme allows a high degree of...
Three dimensionality of pulsed second-sound waves in He II (2006)
Three dimensionality of 3D pulsed second sound wave in He II emitted from a finite size heater is experimentally investigated and theoretically studied based on two-fluid model in this study. The...
Nonadiabatic production of spinor condensates with a QUIC trap (2006)
Motivated by the recent experimental observation of multi-component spinor condensates via a time-dependent quadrupole-Ioffe-configuration trap (QUIC trap), we provide a general framework for the...
Demonstration of Temporal Distinguishability in a Four-Photon State and a Six-Photon State (2006)
Xiang, G. Y., Huang, Y. F., Sun, F. W., Zhang, P., Ou, Z. Y., Guo, G. C.
An experiment is performed to demonstrate the temporal distinguishability of a four-photon state and a six-photon state, both from parametric down-conversion. The experiment is based on a...
Regulation of Cementoblast Gene Expression by Inorganic Phosphate In Vitro (2006)
Matsa-Dunn, D., Somerman, Martha J., Berry, J. E., Swanson, E. C., Foster, B. L., Nociti, F. H., ...
Examination of mutant and knockout phenotypes with altered phosphate/pyrophosphate distribution has demonstrated that cementum, the mineralized tissue that sheathes the tooth root, is very sensitive...
Comparison of BR and QR eigenvalue algorithms system small signal stability analysis (2006)
Ma, J., Dong, Z. Y., Zhang, P.
The BR algorithm is a novel and efficient method to find all eigenvalues of upper Hessenberg matrices and has never been applied to eigenanalysis for power system small signal stability. This paper...
RSA-Grid: A grid computing based framework for power system reliability and security analysis (2006)
Zhang, P, Liu, RX, Wong, SC, Dai, SQ
This paper studies many fundamental aspects of a newly proposed multi-class traffic flow model. For the first time it presents a complete discussion on the hyperbolicity of the system; and based upon...
This paper shows the essence of conservation forms when applying the weak solution theory to solve the traveling wave solution of a wide cluster in the Payne-Whitham (PW) model. The consideration of...
Multi-access radio resource management using multi-agent system (2006)
Feng, Z, Yu, K, Ji, Y, Zhang, P, Li, VOK, Zhang, Y
Coexistence of heterogeneous networks such as cellular, Wireless Local Area Network (WLAN), Ultra-wideband (UWB) etc. brings new challenges. It is perceived that current radio resource management...
Joint radio resource management based on the species competition model (2006)
Yang, G, Chen, J, Yu, K, Zhang, P, Li, VOK
For optimal radio resource utilization in heterogeneous wireless networks, Joint Radio Resource Management (JRRM) is required. In distributed JRRM, each radio each access network (RAN) adjusts...
Quantum-Classical Transition of Photon-Carnot Engine Induced by Quantum Decoherence (2005)
Quan, H. T., Zhang, P., Sun, C. P.
We study the physical implementation of the Photon Carnot engine (PCE) based on the cavity QED system [M. Scully et al, Science, \textbf{299}, 862 (2003)]. Here, we analyze two decoherence mechanisms...
Quantum Heat Engine With Multi-Level Quantum Systems (2005)
Quan, H. T., Zhang, P., Sun, C. P.
By reformulating the first law of thermodynamics in the fashion of quantum-mechanical operators on the parameter manifold, we propose a universal class of quantum heat engines (QHE) using the...
Second Order Geodesic Corrections to Cosmic Shear (2005)
Dodelson, S., Kolb, E. W., Matarrese, S., Riotto, A., Zhang, P.
We consider the impact of second order corrections to the geodesic equation governing gravitational lensing. We start from the full second order metric, including scalar, vector and tensor...
Vibrational analysis of L-serine using the density functional theory (2005)
Zhang, Y, Yin, W, Zhang, P, Xu, CY, Han, SH, Li, JC
In this paper, we present a computational study of L-serine using ab initio molecular dynamics simulation based on density functional theory (DFT) within the ultrasoft pseudopotentials and...
Dong, Z. Y., Pang, C. K., Zhang, P.
Deregulations and market practices in power industry have brought great challenges to the system planning area. In particular, they introduce a variety of uncertainties to system planning. New...
This paper develops macroscopic traffic flow models for a highway section with variable lanes and free-flow velocities, that involve spatially varying flux functions. To address this complex physical...
Zhang, P, Wang, ZD, Sun, JD, Sun, CP
We propose a different scheme to realize holonomic quantum computation with rf superconducting quantum interference device (SQUID) qubits in a microwave cavity. In this scheme associated with the...
QoS guaranteed vertical handoff signaling scheme for heterogeneous networks (2005)
Wang, Y, Zhang, Q, Wang, Y, Zhang, P, Li, VOK
Signaling process of vertical handoff with QoS support between GPRS and WLAN is developed. Schemes of handoff preparing loop (HPL) and layer 3 (mobile IP layer) bi-direction connections between GPRS...
Cooling of Nanomechanical Resonator Based on Periodical Coupling to Cooper Pair Box (2004)
Zhang, P., Wang, Y. D., Sun, C. P.
We propose and study an active cooling mechanism for the nanomechanical resonator (NAMR) based on periodical coupling to a Cooper pair box (CPB), which is implemented by a designed series of magnetic...
Effective boson-spin model for nuclei ensemble based universal quantum memory (2004)
Song, Z., Zhang, P., Shi, T., Sun, C. P.
We study the collective excitation of a macroscopic ensemble of polarized nuclei fixed in a quantum dot. Under the approximately homogeneous condition that we explicitly present in this paper, this...
Holonomic Quantum Computation Using Rf-SQUIDs Coupled Through A Microwave Cavity (2004)
Zhang, P., Wang, Z. D., Sun, J. D., Sun, C. P.
We propose a new scheme to realize holonomic quantum computation with rf-SQUID qubits in a microwave cavity. In this scheme associated with the non-Abelian holonomies, the single-qubit gates and a...
Zhou, Z. Y., Qin, G. Y., Zhang, P., Xiao, Z. G., Zheng, H. Q., Wu, N.
The pole structure of the low energy $\pi\pi$ scattering amplitudes is studied using a proper chiral unitarization method combined with crossing symmetry and the low energy phase shift data. It is...
A new method has been proposed based on the method of inequalities for the coordinated synthesis of Power System Stabilizer (PSS) parameters in multi-machine power systems in order to enhance overall...
Induced Magnetic Monopole from Trapped $\Lambda$-Type Atom (2004)
We investigate the spatial motion of the trapped atom with the electromagnetically induced transparency (EIT) configuration where the two Rabi transitions are coupled to two classical light fields...
Creating Steady Atom-Molecule Entanglement by Demkov-Kunike Type Non-adiabatic Transition (2004)
Zhang, P., Quan, H. T., Sun, C. P.
We, based on the photoassociation of fermion atoms into bosonic molecules, propose a scheme to create the steady entanglement between the atom state and the molecule state inside an optical lattice....
Non-Abelian Geometric Quantum Memory with Atomic Ensemble (2004)
Li, Y., Zhang, P., Zanardi, P., Sun, C. P.
We study a quantum information storage scheme based on an atomic ensemble with near (also exact) three-photon resonance electromagnetically induced transparency (EIT). Each 4-level-atom is coupled to...
Two-Qubits Entanglement Induced by a Faster Data Bus (2004)
Zhang, P., Wang, Y. D., Sun, C. P.
We propose a theoretical protocol to create the entanglement of two qubits via the Born-Oppenheimer (BO) approximation. In our scheme, each qubit is coupled to a faster data bus whose frequency is...
Nonadiabatic effects of atomic motion inside a high Q optical cavity (2004)
Zhang, P., Li, Y., Sun, C. P., You, L.
We revisit the topic of atomic center of mass motion of a three level atom Raman coupled strongly to an external laser field and the quantum field of a high Q optical cavity. We focus on the motion...
Service-differentiated handoff protocol (SDHP) (2004)
Liu, X, Hui, P, Li, VOK, Zhang, P
The future mobile Internet will provide various data services with different QoS requirements to roaming users. Due to the limited wireless transmission range, handoff is essential and a major...
Zhang, P., Saleh, N., Chen, S., Sheng, Z.M., Umstadter, Donald P.
The effects of interference due to crossed laser beams were studied experimentally in the high-intensity regime. Two ultrashort (400 fs), high-intensity (4Ã1017 and 1.6Ã1018 W/cm2) and1µm...
Criss-crossing Laser Beams Zoom Electrons Along (2003)
Zhang, P., Saleh, N., Chen, S., Sheng, Z.M., Umstadter, Donald P.
Crossing two high-intensity laser beams in a plasma (a collection of charged particles) can have some interesting effects. In a recent experiment performed by researchers at the University of...
Geometric Quantum Information Storage Based on Atomic Ensemble (2003)
Quantum information storage (QIS) is a physical process to write quantum states into a quantum memory (QM). We observe that in some general cases the quantum state can be retrieved up to a unitary...
The effect of nanotube radius on the constitutive model for carbon nanotubes (2003)
Jiang,H., Zhang,P., Liu,B., Huang,Y., Geubelle,P. H., Gao,H., ...
Wang, Y. D., Zhang, P., Zhou, D. L., Sun, C. P.
We propose a theoretical protocol for quantum logic gates between two Josephson junction charge-phase qubits through the control of their coupling to a large junction. In the low excitation limit of...
A criterion for testing multi-particle NPT entanglement (2003)
Zeng, B., Zhou, D. L., Zhang, P., Xu, Z., You, L.
We revisit the criterion of multi-particle entanglement based on the overlaps of a given quantum state $\rho$ with maximally entangled states. For a system of $m$ particles, each with $N$ distinct...
Data Mining and Visualization of Twin-Cities Trac Data (2003)
S. Shekhar, C. T. Lu, S. Chawla, P. Zhang
Data Mining#DM# is the process of extracting implicit, valuable, and interesting information from large sets of data. As huge amounts of data have been stored in tra#c and transportation databases,...