Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Hou-zhi Zheng"'
Autor:
Z Z Gan, R Q Han, Hou-zhi Zheng, Bang-fen Zhu, Jian-bai Xia, G G Qin, Guo Zhen Yang, Z T Zhong
This review volume consists of scientific articles representing the frontier and most advanced progress in the field of semiconductor physics and lattice dynamics.
Publikováno v:
Journal of Applied Physics; 9/15/2004, Vol. 96 Issue 6, p3277-3281, 5p, 1 Diagram, 5 Graphs
Publikováno v:
Optics Communications. 273:89-93
We propose an approach to construct waveguide intersections with broad bandwidth and low cross-talk for square-lattice photonic crystals. by utilizing a vanishing overlap of the propagation modes in the waveguides created by defects which support dip
Publikováno v:
Journal of Physics A: Mathematical and General. 39:5847-5856
We present a modified method for detecting the concurrence in an arbitrary two-qubit quantum state rho(AB) with local operations and classical communication. In this method, it is not necessary for the two observers to prepare the quantum state rho(A
Publikováno v:
Journal of Physics A: Mathematical and General. 38:8633-8639
We present a parametrically efficient method for measuring the entanglement of formation E-f in an arbitrarily given unknown two-qubit state rho(AB) by local operations and classical communication. The two observers, Alice and Bob, first perform some
Publikováno v:
Journal of Applied Physics. 96:3277-3281
We have studied the single-electron and two-electron vertically assembled quantum disks in an axial magnetic field using the effective mass approximation. The electron interaction is treated accurately by the direct diagonalization of the Hamiltonian
Autor:
Fuhua Yang, Zhichuan Niu, Hou-Zhi Zheng, Jian-Bai Xia, Jin-Long Liu, Song-Lin Feng, Shu-Shen Li
Publikováno v:
Journal of Applied Physics. 90:6151-6155
The time evolution of the quantum mechanical state of an electron is calculated in the framework of the effective-mass envelope function theory for an InAs/GaAs quantum dot. The results indicate that the superposition state electron density oscillate
Autor:
Hou-Zhi Zheng, Jing-Yang You
Publikováno v:
Physical Review B. 60:8727-8733
Spectral properties of a double quantum dot (QD) structure are studied by a causal Green's function (GF) approach. The double QD system is modeled by an Anderson-type Hamiltonian in which both the intra- and interdot Coulomb interactions are taken in
Autor:
Hou-zhi Zheng, Jian-qiang You
Publikováno v:
Chinese Physics Letters. 16:594-596
The ground state of a double quantum-dot structure is studied by a simplified Anderson-type model. Numerical calculations reveal that the ground-state level of this artificial molecule increases with the increasing single particle level of the dot, a
Autor:
Hai-ping Zhou, Hou-zhi Zheng
Publikováno v:
Physical Review B. 41:1140-1143
A new physical model has been developed to explain previously observed negative parallel magnetoresistances (NPMR) in terms of suppression of the localization in disordered two-dimensional electron systems by lateral shift of subband parabolas in a m