| 1. | In other words, the hermiticity of a matrix is invariant under unitary transformations .
换言之，矩阵的厄密性在幺正变换下保持不变。 |
| 2. | Finally , a guantum logical circuit which can carry out the unitary transformation is given
最后，给出了实现这种传递的里子逻辑电路。 |
| 3. | In chapter 5 , we define quantum binary symmetric channels via the invariance of fidelity under unitary transformation of input density operators
第五章通过量子保真度( fidelity )在输入信号的幺正变换下的不变性定义了量子二进制对称信道。 |
| 4. | With the help of bell - state measurements , an arbitrary three - particle state can be perfectly teleported if the receiver introduces a collective unitary transformation
在贝尔态测量后，如果接收者引入一个联合幺正变换，传递可以顺利实现。 |
| 5. | The properties of the weak - coupling bound polaron in quantum well are studied using the linear combination operator and the unitary transformation method
摘要采用线性组合算符及幺正变换方法研究了磁场对量子阱中弱耦合束缚极化子的性质的影响。 |
| 6. | We conduct a theoretical study on the properties of a bound polaron in a quantum well under an electric field using linear combination operator and unitary transformation methods , which are valid in the whole range of electron - lo phonon coupling
摘要采用线性组合算符及幺正变换方法研究了电场对量子阱弱耦合束缚极化子的性质的影响。 |
| 7. | 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。 |
| 8. | By considering the random of the local unitary transformation and the character of the machine , the probability of the transformation will not be 1 / 2 . we generalize the random local unitary transformation , and obtain a more common form
考虑到局域变换的随机性以及实验仪器的性能，变换的几率可能会出现一些偏差，不再是1 2 ，本文在第四章对变换的随机性进行了一般化，得出变换后更一般的矩阵形式。 |
| 9. | Abstract : we conduct a theoretical study on the properties of a bound polaron in a quantum well under an electric field using linear combination operator and unitary transformation methods , which are valid in the whole range of electron - lo phonon coupling . the changing relations between the ground - state energy of the bound polaron in the quantum well and the coulomb bound potential , the electric field strength , and the well width are derived . the numerical results show that the ground - state energy increases with the increase of the electric field strength and the coulomb bound potential and decreases as the well width increases
文摘:采用线性组合算符及幺正变换方法研究了电场对量子阱弱耦合束缚极化子的性质的影响.推导出量子阱中束缚极化子的基态能量和库仑束缚势、电场和阱宽的变化关系.数值计算结果表明,基态能量因电场和库仑束缚势的不同而不同,随电场和库仑束缚势的增大而增大,随阱宽的增大而迅速减小 |
| 10. | It is shown that after ni time measurements and proper unitary transformations , the unknown n - dimension ni - particle state was destroyed at one place , and be reconstructed at another place . ( 2 ) the quantum state will be teleported is an unknown state , so it should be a general quantum state
( 2 )以前的量子隐形传态方案传输的二粒子量子态都是特殊的量子态，即只具有二分量的纠缠态，但由于要传输的量子态是未知的，所以真正的量子隐形传态要传输的二粒子量子态应是任意给定的量子态。 |
