A qubit can be not just 0 or 1 but also a superposition of the two , in which proportions of zero - ness and one - ness are combined in a single state 一个量子位元不会只是0或1 ,而是两种状态的叠加,也就是0的状态和1的状态会合并成一个状态。
Realizing the teleportation of a quantum state , specially the teleportation of a many - qubit quantum state , is of great importance in quantum information 实现量子态的隐形传送,尤其是多比特量子态的隐形传送在量子信息领域中有非常重要的作用。
This dissertation also proves that any non - schmidt three - qubit pure state belonging to ghz class cannot be deterministically transformed to any schmidt state under locc 并且证明了非schmidt态的三量子位ghz类态,不能概率为1地转换到schmidt态。
Similarly , the properties of a qubit are independent of its specific physical representation as the spin of an atomic nucleus , say , or the polarization of a photon of light 同样地,一个量子位元的性质也独立于特定的物理表现系统,例如原子核的自旋态或光子的偏振。
Mr lazaridis explains with evident pride that researchers at iqc recently published the first experimental demonstration of a 12 - qubit computer 在处理一些利用量子力学研究原子时凸现出的瓶颈问题上?海森伯格不确定性原则在预测粒子运动上的矛盾?量子计算技术有着很多优势。
In this paper , study the thermal entanglement of a two - qubit xyz heisenberg model , and show the influences for the concurrence of this system in terms of the parameters of the hamiltonian and t 摘要研究两粒子的xyz海森伯模型的热纠缠态,并讨论了这个系统哈密顿量中的参数和温度对纠缠度的影响。
In this scheme unitary transformation and local measurement take the place of bell state measurement , and then proper unitary transformation and the measurement on an auxiliary qubit with the aid of classical communication are performed 在这个方案中,幺正变换和局域测量代替了bell基测量,然后进行适当的幺正变换和辅助粒子测量并辅以经典通讯。
In chapter 3 , we focus our attention on discussing the geometric phase ( berry phase ) of quantum state evolving adiabatically and the controlling mechanism about the two - qubit conditional geometric quantum phase - shift gate realized by using of the adiabatic geometric phase - shift 第三章,集中讨论了量子态的绝热演化几何相( berry相)以及绝热几何相移实现的两量子位条件几何量子相移门的控制机制。
Based on the group theoretic framework , equivalent forms of quantum error correcting codes are found for encoding three qubits in eight qubits and correcting one error . a class of quantum cyclic codes of encoding one qubit and correcting two or three random quantum errors is obtained via quadratic residue 第四章研究了量子纠错码,基于群论框架求出了量子8编3码的等价码,用二次剩余方法求出了一类纠两位和三位错的量子码。
In practice , this dissertation focuses on the study of the aforementioned two problems , we have investigated and analyzed the controlling mechanism of the adiabatic conditional geometric quantum phase - shift gates for two - qubit , and realized the geometric quantum computation by making use of the nonadiabatic geometric phase of quantum states of the superconducting josephson junctions quantum interference device system . we have also discussed the accessible information of quantum signal resource ensemble , and studied the teleportation of an arbitrary d - dimensional tv - particle unknown state via a partially - entangled quantum channel ; this dissertation comes in four parts 实际上,我们在本文中就上述两方面的问题作了一些探讨:研究和分析了两量子位绝热条件几何量子相移门的控制机制,利用超导约瑟夫森结量子器件系统的量子态的非绝热几何相位实现了几何量子计算、讨论了信源系综的可接收信息问题以及任意d维n粒子未知量子态通过部分纠缠量子信道的隐态传输问题等。