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证明了一类半线性椭圆方程正解满足等周不等式,并得到了此解的最佳上界估计. 相似文献
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Hui-Yi Wang Wen-Cheng Xu Ai-Ping Luo Jiang-Li Dong Wen-Jun Cao Lu-Yan Wang 《Optics Communications》2012,285(7):1905-1907
We report on the controllable generation of the dissipative soliton and the Q-switched pulse in a normal dispersion fiber ring laser. The hybrid saturable absorber is used to obtain the dissipative soliton or the Q-switched pulse by slightly adjusting the polarization controller. Based on the experimental results and theoretical analysis, the controllable dissipative soliton and Q-switched pulse emission can be induced by the cavity loss tuning mechanism of the fiber laser. 相似文献
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Qin-Qin Wu Lan Xu Qing-Shou Tan Lin-Ling Yan 《International Journal of Theoretical Physics》2012,51(5):1482-1490
We study the multi-qubit entanglement transfer in a hybrid circuit quantum electrodynamics system, where the memory and operation
registers are, respectively, implemented using nitrogen-vacancy centers in diamond and superconducting charge qubits, because
of their respective good coherence and controllability. We show that, with some local operations, both the Bell states and
multi-qubit W states can be transferred perfectly in the non-dissipative case. In addition, we also consider the influence
of the decoherence on the state transfer. It is found that a high-fidelity state transfer can be achieved only when the decoherence
rates are much smaller than the coupling strength between the qubits. 相似文献
59.
Lan Xu Ping-ke Zhang Gui-ping Wu 《International Journal of Theoretical Physics》2012,51(12):3815-3821
In this paper, we introduce the definition of a new kind of continuous-variable-type entangled coherent states, called double-mode excited entangled coherent states through acting creation operators on the double-mode entangled coherent states. We briefly present how to produce them from the two mode ECSs through an interaction between laser and atoms. We further focus on studying the fidelity of the states and discussing the influence of photon excitations on fidelity. 相似文献
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We study exciton transfer dynamics in a trimer system by investigating excitation transfer probability (ETP). We calculate ETP in the zero-temperature limit and theoretically predict the environment-assisted quantum critical effect, in which ETP exhibits a sudden change at the critical point of quantum phase transition for the trimer. In particular, we find that the steady-state ETP can be observed in the presence of the environment interaction. 相似文献