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Jinjing Shi,Ronghua Shi,Danping Xu,Moon Ho Lee 대한전자공학회 2011 대한전자공학회 학술대회 Vol.2011 No.12
A quantum TITO (Two-Input-Two-Output) diversity transmission scheme for the entangled-state message is proposed by generalizing the wireless transmission technique to the quantum field. The TITO quantum teleportation can be implemented with Bell states in order to enhance the capacity and fidelity of the quantum channel, in which a quantum signal sequence with η entangled quantum states can be transmitted through the TITO quantum channel by applying the diversity technology. The fidelity analysis demonstrates that the quantum TITO teleportation can be performed with an expected fidelity.
Shaoying Zheng,Longlong Fan,Erika Odendo,Laijun Liu,Danping Shi,Guizhong Li,Jun Chen,Liang Fang,Brahim Elouadi 한국물리학회 2014 Current Applied Physics Vol.14 No.1
Perovskite structure (1 x)BaTiO3exBiAlO3 (BTexBA, x ¼ 0.05, 0.08 and 0.1, corresponding to BTe5BA, BTe8BA and BTe10BA, respectively) ceramics were prepared by a solid state reaction route. Crystal structure of BTexBA ceramics was determined by using XRD. Dielectric properties were studied as a function of temperature at different frequencies, which indicated that the phase transition temperature (Tm) decreased with increasing x. With increasing temperature, thermal expansion dl/l increased while thermal expansion coefficient a had weak concentration dependence. The Burns temperature was much higher than the transition temperature Tm for the BTe5BA and BTe10BA ceramics. Polarization hysteresis loops (PeE), electrostrictive (SeE) and S versus P2 (SeP2) at different temperatures were displayed. Pmax slightly decreased due to thermally activated leakage current, meanwhile, Smax decreased at above Tm with the contribution of ferroelectric domain reorientation decreased. The electrostrictive coefficient Q value was clearly larger than that of lead-based electrostrictors at room temperature. Furthermore, it exhibited a slim loop with negligible hysteresis and a subtle linear feature at higher temperature.