Zobrazeno 1 - 10 of 54 pro vyhledávání: '"Qingshan Yuan"'
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Akademický článek
Design of a 3D space early warning system for high precision positioning technology of Beidou and analysis of differential positioning accuracy
Autor: Xingzhi Chang, Weizheng Pei, Limin Zhang, Yanfei Zhang, Qingshan Yuan
Publikováno v: Measurement: Sensors, Vol 33, Iss , Pp 101103- (2024)
The Beidou satellite navigation system has achieved certain results in positioning accuracy, but due to factors such as system errors, its accuracy still does not fully meet the requirements of high-precision measurement. Therefore, this study propos
Externí odkaz: https://doaj.org/article/374fe5bac4844f088a497d080f77151d
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4
Gap symmetry of superconducting borocarbide YNi2B2C and skutterudite PrOs4Sb12
Autor: Qingshan Yuan, P. Thalmeier, Hyekyung Won, K. Maki
Publikováno v: Brazilian Journal of Physics v.33 n.4 2003
Brazilian Journal of Physics
Sociedade Brasileira de Física (SBF)
instacron:SBF
Brazilian Journal of Physics, Volume: 33, Issue: 4, Pages: 675-680, Published: DEC 2003
Within the quasiclassical approximation we have studied the thermodynamics and the thermal conductivity in the vortex state in nodal superconductors (sc). Recent angle dependent magnetothermal conductivity results indicate a gap function delta(k) cor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9dc45f84f3b75b68afdab0e1a92a67d
https://doi.org/10.1590/s0103-97332003000400007
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5
Multiphase superconductivity in skutterudite PrOs 4 Sb 12
Autor: Kazumi Maki, Yasuhiro H. Matsuda, Qingshan Yuan, Peter Thalmeier, K. Izawa, Hyekyung Won
Publikováno v: Europhysics Letters (EPL). 64:496-502
We propose a model of nodal order parameters for the superconducting A and B - phase of skutterudite PrOs_4Sb_{12} and discuss the associated angular dependent magnetothermal conductivity at low temperatures. The model for the hybrid gap functions \D
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02d857c7a09883ea87ea2cfd5a7882b9
https://doi.org/10.1209/epl/i2003-00250-2
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6
Ground-state properties of the generalized ferromagnetic Kondo lattice model
Autor: Qingshan Yuan, Hong Chen, Yu-Guang Chen, Yu-Mei Zhang
Publikováno v: Journal of Physics: Condensed Matter. 11:5623-5630
A special kind of bosonization technique and renormalization group theory are employed to study an extended ferromagnetic Kondo lattice model. An effective Hamiltonian is deduced. On the basis of this effective Hamiltonian the phase diagram is discus
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::36455591955ab86069b8d768ea8c1872
https://doi.org/10.1088/0953-8984/11/29/309
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7
Low energy excitation of the one-dimensional Kondo-necklace model
Autor: Qingshan Yuan, Yuguang Chen, Hong Chen, Yu-Mei Zhang
Publikováno v: Physics Letters A. 245:167-171
The one-dimensional Kondo-necklace model is investigated on the basis of bosonization. We prove that the model belongs to the same universality class as the one-dimensional half-filling Kondo lattice model at operator level, furthermore, the excitati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4dd4318bda83cdfc4325be5afa3f9ed5
https://doi.org/10.1016/s0375-9601(98)00369-7
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8
Friedel oscillations in one-dimensional fermion systems with long-range Coulomb interaction
Autor: Yu-Mei Zhang, Qingshan Yuan, Yuguang Chen, Hong Chen
Publikováno v: Physical Review B. 58:1084-1087
Using a bosonization and variational Gaussian wave-functional method we analytically calculate the Friedel oscillations induced by a single impurity in one-dimensional electron systems with long-range Coulomb interaction. It is shown that the Friedel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f71db66194444223216ac67965d045c
https://doi.org/10.1103/physrevb.58.1084
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9
Bound state in a one-dimensional quantum sine-Gordon model
Autor: Qingshan Yuan, Yuguang Chen, Hong Chen, Yu-Mei Zhang
Publikováno v: Physical Review B. 57:1324-1327
The impurity problem ina one-dimensional quantum sine-Gordon model is studied in this paper. We use an analytic self-consistent theory to derive the excitation spectrum of the global sine-Gordon model, and then to study the bound state induced by loc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0534a294c8a6416da90a6040d74ad3b7
https://doi.org/10.1103/physrevb.57.1324
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10
Phonon effects on a multichannel resonance-level model
Autor: Xiang Wu, Qingshan Yuan, Yu-Guang Chen, Yu-Mei Zhang, Hong Chen
Publikováno v: Journal of Physics: Condensed Matter. 9:7381-7390
The phonon effects on a multichannel resonant-level model have been studied by a bosonization technique and canonical transformations. We found that the model can be mapped onto a single-channel Kondo model and the non-Fermi-liquid transition is modi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3a8a88067eedc4893977841bce4c53a
https://doi.org/10.1088/0953-8984/9/35/012
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