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Probabilistic Teleportation of an Unknown Two-Particle State with a Four-Particle Pure Entangled State and Positive Operator Valued Measure 被引量:18
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作者 闫凤利 丁贺伟 《Chinese Physics Letters》 SCIE CAS CSCD 2006年第1期17-20,共4页
We propose a scheme for probabilistic teleportation of an unknown two-particle state with a four-particle pure entangled state and positive operator valued measure (POVM). In this scheme the teleportation of an unkn... We propose a scheme for probabilistic teleportation of an unknown two-particle state with a four-particle pure entangled state and positive operator valued measure (POVM). In this scheme the teleportation of an unknown two-particle state can be realized with certain probability by performing two Bell state measurements, a proper POVM and a unitary transformation. 展开更多
关键词 SECURE DIRECT COMMUNICATION SWAPPING QUANTUM ENTANGLEMENT PODOLSKY-ROSEN CHANNELS particle state LOGIC-NETWORKS GENERAL-FORM EPR PAIRS SCHEME
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STATIONARY DISTRIBUTIONS OF INFINITE PARTICLE SYSTEMS WITH NONCOMPACT STATE SPACE. 被引量:2
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作者 陈木法 《Acta Mathematica Scientia》 SCIE CSCD 1989年第1期7-19,共13页
This paper deals with the preblem of existence and uniqueness of the stationary distributions (abbr., s. d.'s) for the processes constructed in [4] .The main results are stated in § 1. For the reader's co... This paper deals with the preblem of existence and uniqueness of the stationary distributions (abbr., s. d.'s) for the processes constructed in [4] .The main results are stated in § 1. For the reader's convenience we first restate the existence theorems (Theorem 1 and 2) of the processes given in [4]. Then two existence theorems (Theorem 3 and 4) and a uniqueness theorem (Theorem 5) for the s. d.'s of the processes are presented. The last result (Theorem 6), as an application of the previous ones, is about the Schlgl model which comes from nonequilibrium statisticali physics. The details of the proofs of Theorem 3—6 are given in § 2—4. 展开更多
关键词 PRO STATIONARY DISTRIBUTIONS OF INFINITE particle SYSTEMS WITH NONCOMPACT state SPACE
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Quantum Secure Direct Communication with Four-Particle Genuine Entangled State and Dense Coding
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作者 XIU Xiao-Ming DONG Li GAO Ya-Jun CHI Feng 《Communications in Theoretical Physics》 SCIE CAS CSCD 2009年第7期60-62,共3页
A quantum secure direct communication scheme using dense coding is proposed.At first,the sender (Alice)prepares four-particle genuine entangled states and shares them with the receiver (Bob) by sending two particles i... A quantum secure direct communication scheme using dense coding is proposed.At first,the sender (Alice)prepares four-particle genuine entangled states and shares them with the receiver (Bob) by sending two particles in eachentangled state to him.Secondly,Alice encodes secret information by performing the unitary transformations on herparticles and transmits them to Bob.Finally,Bob performs the joint measurements on his particles to decode the secretinformation.The two-step security test guarantees the security of communication. 展开更多
关键词 quantum communication quantum secure direct communication entanglement swapping four- particle genuine entangled state
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The Natural Law of Transition of a Charged Particle into a Compound State under the Action of an Electroscalar Field
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作者 Oleg Antonovich Zaimidoroga 《Journal of Modern Physics》 2016年第15期2188-2204,共17页
This article is the continuation of article [1] where the experimental facts of observation of the electroscalar radiation in the spectrum of the Sun have been presented [2]. This radiation comes into the world having... This article is the continuation of article [1] where the experimental facts of observation of the electroscalar radiation in the spectrum of the Sun have been presented [2]. This radiation comes into the world having a long wavelength, being longitudinal and extraordinarily penetrating. In accordance with the principle of least action, the Lagrangian of the electroscalar field and the tensor of energy-moment are determined using the variation the potential and coordinates. The equation of motion the charged particle in electroscalar field is determined and the energy of particle has the negative sign with respect to the mechanical energy of particle and the energy of electromagnetic field. So, this is decreasing the electrical potential of particle during the propagation. The electroscalar energy of charged particle and field’s force acting on the particle during their motion change the particle’s electrical status which, in its turn, may trigger the transition of the particle into a compound state during interaction with any object. Due to the continuity this process can lead the particle to the state which enters into a compound state with a negative energy for a different particle’s velocity. This state is the physical vacuum’s state. Analysis of the solar spectrum demonstrates that scattering and absorption of electroscalar wave go on the cavities of solids. The spreading out of electroscalar field obeys to the law of plane wave and the transfer the energy and information can occur in vacuum and any medium. 展开更多
关键词 Equation of Motion of Electroscalar Field Tensor Energy-Moment of Electroscalar Field Natural Law of particle’s Transition into a Compound state Physical Vacuum
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Knotted Picture of Unknown Quantum State in Process of Quantum Teleportation
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作者 GU Zhi-Yu QIAN Shang-Wu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第5期1163-1164,共2页
This paper gives the knotted picture of the unknown quantum state in the process of quantum teleportation and the surgical knotted operations of the unitary operators operated on the teleported quantum state.
关键词 Bell bases single particle quantum state knotted picture flip operation inversion operation
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Strange star candidates revised within a quark model with chiral mass scaling 被引量:1
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作者 Ang Li Guang-Xiong Peng Ju-Fu Lu 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2011年第4期482-490,共9页
We calculate the properties of static strange stars using a quark model with chiral mass scaling. The results are characterized by a large maximum mass (-1.6 M⊙) and radius (-10km). Together with a broad collecti... We calculate the properties of static strange stars using a quark model with chiral mass scaling. The results are characterized by a large maximum mass (-1.6 M⊙) and radius (-10km). Together with a broad collection of modern neutron star models, we discuss some recent astrophysical observational data that could shed new light on the possible presence of strange quark matter in compact stars. We conclude that none of the present astrophysical observations can prove or confute the existence of strange stars. 展开更多
关键词 dense matter -- elementary particles -- equation of state -- stars: inte-riors
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Knotted picture of the whole complete quantum measurement process of quantum teleportation
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作者 顾之雨 钱尚武 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第8期110-115,共6页
Based on the previous work about the knotted pictures of quantum states, quantum logic gates and unitary transformations, this paper further gives the whole complete quantum measurement process of quantum teleportatio... Based on the previous work about the knotted pictures of quantum states, quantum logic gates and unitary transformations, this paper further gives the whole complete quantum measurement process of quantum teleportation from the viewpoint of knot theory. 展开更多
关键词 Bell bases single particle quantum state knotted picture flip operation inversion operation composition operation
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Characteristics of atmospheric single particles during haze periods in a typical urban area of Beijing:A case study in October,2014 被引量:19
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作者 Lang Liu Yanli Wang +7 位作者 Shiyong Du Wenjie Zhang Lujian Hou Sverre Vedal Bin Han Wen Yang Mindong Chen Zhipeng Bai 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2016年第2期145-153,共9页
To investigate the composition and possible sources of particles, especially during heavy haze pollution, a single particle aerosol mass spectrometer(SPAMS) was deployed to measure the changes of single particle spe... To investigate the composition and possible sources of particles, especially during heavy haze pollution, a single particle aerosol mass spectrometer(SPAMS) was deployed to measure the changes of single particle species and sizes during October of 2014, in Beijing. A total of 2,871,431 particles with both positive and negative spectra were collected and characterized in combination with the adaptive resonance theory neural network algorithm(ART-2a). Eight types of particles were classified: dust particles(dust, 8.1%), elemental carbon(EC, 29.0%), organic carbon(OC, 18.0%), EC and OC combined particles(ECOC, 9.5%),Na-K containing particles(Na K, 7.9%), K-containing particles(K, 21.8%), organic nitrogen and potassium containing particles(KCN, 2.3%), and metal-containing particles(metal,3.6%). Three haze pollution events(P1, P2, P3) and one clean period(clean) were analyzed,based on the mass and number concentration of PM_(2.5)and the back trajectory results from the hybrid single particle Lagrangian integrated trajectory model(Hysplit-4 model). Results showed that EC, OC and K were the major components of single particles during the three haze pollution periods, which showed clearly increased ratios compared with those in the clean period. Results from the mixing state of secondary species of different types of particles showed that sulfate and nitrate were more readily mixed with carbon-containing particles during haze pollution episodes than in clean periods. 展开更多
关键词 Single particle mass spectrometry Haze pollution Mixing state
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DEM investigation on the effect of sample preparation on the shear behavior of granular soil 被引量:4
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作者 Beibing Dai Jun Yang Cuiying Zhou 《Particuology》 SCIE EI CAS CSCD 2016年第2期111-121,共11页
The effect of initial fabric anisotropy produced by sample preparation on the shear behavior of granular soil is investigated by performing discrete element method (DEM) simulations of fourteen biaxial tests in drai... The effect of initial fabric anisotropy produced by sample preparation on the shear behavior of granular soil is investigated by performing discrete element method (DEM) simulations of fourteen biaxial tests in drained conditions. Numerical test specimens are prepared by three means: gravitational deposition, multi-layer compression, and isotropic compression, such that different initial inherent soil fabrics are created. The DEM simulation results show that initial fabric anisotropy exerts a considerable effect on the shear behavior of granular soil, and that the peak stress ratio and peak dilatancy increase with an increase in the fabric index an that is estimated from the contact orientations. The stress-dilatancy relationship is found to be independent of the initial fabric anisotropy. The anisotropy related to the contact orientation and contact normal force accounts for the main contribution to the mobilized friction angle. Also, the occurrence of contractive shear response in an initial shearing stage is accompanied by the most intense particle rearrangement and microstructural reorganization, regardless of the sample preparation method. Furthermore, the uniqueness of the critical state line in e-logp' and q-p' plots is observed, suggesting that the influence of initial fabric anisotropy is erased at large shear strains. 展开更多
关键词 Initial fabric anisotropy Stress-dilatancy relationship Shear strength Critical state line particle motion
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