Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Lei Min-Sheng"'
Publikováno v:
Chinese Physics B. 18:2492-2497
This paper studies the structure and electronic properties of Li4Ti5O12, as anode material for lithium ion batteries, from first principles calculations. The results suggest that there are two kinds of unit cell of Li4Ti5O12: n-type and p-type. The t
Publikováno v:
Chinese Physics B. 18:2551-2556
The electronic structure and magnetism of eskolaite are studied by using first-principles calculations where the on-site Coulomb interaction and the exchange interaction are taken into account and the LSDA + U method is used. The calculated energies
Autor:
Lei Min-Sheng, Xiong Zhi-hua
Publikováno v:
Chinese Physics. 14:1199-1204
The diffusion mechanism of Li ion in a copper thin film is investigated from first-principle calculations. The energy barriers for possible spatial hopping pathways are calculated with the adiabatic trajectory method. Theoretically, we have identifie
Publikováno v:
Chinese Physics. 14:1227-1231
Based on the information theory, we present a density matrix to discuss coherent and squeezed states in a mesoscopic LC circuit with time-dependent frequency. With the relevant operators included in the density matrix, a connection between the appear
Publikováno v:
Communications in Theoretical Physics. 43:547-550
Under the Born–von-Karmann periodic boundary condition, we propose a quantization scheme for non-dissipative distributed parameter circuits (i.e. a uniform periodic transmission line). We find the unitary operator for diagonalizing the Hamiltonian
Publikováno v:
International Journal of Theoretical Physics. 42:1765-1771
The quantum theory of the mesoscopic RLC circuit and the condition for Coulomb blockade are given by using canonical quantization and a unitary transformation from the classical equation of motion. Our results show that there is a threshold voltage e
Publikováno v:
Communications in Theoretical Physics. 38:611-614
Using the path integral method we derive quantum wave function and quantum fluctuations of charge and current in the mesoscopic RLC circuit. We find that the quantum fluctuation of charge decreases with time, oppositely, the quantum fluctuation of cu
Publikováno v:
Chinese Physics. 11:720-724
In this paper we consider the movement of an electron in the single electron tunnel process through a mesoscopic capacitor. The results show that, due to the Coulomb force, there is a threshold voltage Vt in the mesoscopic LC circuit. When the extern
Publikováno v:
Chinese Physics. 11:163-166
Taking into consideration the interactions between electrons and phonons, we have studied the temporal evolution of the average charge and current in a dissipative mesoscopic RLC circuit. Our results show that a mesoscopic RLC circuit can be treated
Publikováno v:
Communications in Theoretical Physics. 37:346-348
We study the quantum fluctuations of the charge and current of two L-C dissipative mesoscopic circuit with the mutual inductance in the vacuum state. Our results show that the system state will evolve to a squeezed coherent state under the effect of