| 1. | Roothaan proposed representing the hartree fock orbitals as linear combinations of a complete set of known functions called basis function .
罗汤建议把哈特利福克轨道表示成已知函数称基函数。 |
| 2. | Tin fock international investment
地产投资及管理 |
| 3. | The relativistic multi - configuration dirac - fock ( mcdf ) method is one of the best widespread used methods in the calculation of atomic structures and properties
多组态dirac - fock ( mcdf )方法是一种在相对论理论框架下发展起来的广泛用于计算原子结构和性质的理论方法。 |
| 4. | In section 3 , i introduce a new kind of two - mode bosonic realization of su ( 1 , 1 ) lie algebra , on the basis of which the two - mode su ( 1 , 1 ) coherent states in the two - mode fock space are derived
第三部分引进一种新的双模su ( 1 ， 1 )李代数的玻色子算符实现形式，在此基础上导出了在双模fock空间上的双模su ( 1 ， 1 )相干态。 |
| 5. | If the initial photon state is a fock state , the probability density of the electron exhibits bifurcation and confluence and the corresponding photon distribution is a time - periodic function which result from the energy exchange between the electron and field
Ck态时，随着时间的演化，电子的儿率密度呈现分叉现象，相应的光子数分布是时间周期函数，这是由于电子与光场之间有能量交换。在这种情况下，系统是封闭的。 |
| 6. | Very recently , schiller and muether at tubingen university suggested a new decomposition approach of the dbhf g matrix , and used to calculate the nucleon self - energy . they , sepa rate the g matrix into a bare nucleon - nucleon interaction v and correction term a g . the projection method is only applied to the correlation term a g , which is parameterized by four pseudo - mesons . then the nucleon self - energy in the dbhf can be calculated with the g matrix in the relativistic hartree - fock approximation
裸相互作用部分，即单玻色子交换势v对核子dirac自能结构的贡献可以通过相对论hartree - fock方法得到，只把关联部分用投影方法处理，并参数化为四种具有无穷大质量赝介子的交换，耦合常数与质量的比值是常数，从而关联部分g对核子自能的贡献也可以通过相对论hartree - fock方法求得。 |
| 7. | The channel capacity achieved in our experiments was better than that of the dual homodyne coherent state , homodyne coherent state and squeezed state communication when the average photon number exceed 0 . 99 , 1 . 11 and 2 . 06 respectively . it is more interesting that we found in the experiment , that the maximum channel capacity for a single mode - fock state communication can be surpassed with our system when the average photon number exceed 11 . 302
我们实验所得密集编码的信道容量在光子数大于0 . 99 、 1 . 11及2 . 06时将分别超过相干态双零差通讯信道容量、相干态零差通讯的信道容量以及压缩态零差通讯的信道容量；最重要的是，当平均光子数( |
| 8. | On the basis of one - electron hartree - fock approximation , the extended - ion method and ab initio method have been used to investigate the f center migration between f ~ - layers , br ~ - layers and from f ~ - layer to br ~ - layer . we have calculated the energy barrier of these three f center migrationes and energy of f center , exciton energy . the results of f center and exciton are in good agreement with the experimential data
本文是在单电子hartree - fock近似的基础上采用扩展离子方法和全电子从头计算方法，研究了bafbr ： eu ~ ( 2 + )晶格中的f ~ -离子层间的f心迁移， br ~ -层的f心迁移和f ~ -离子与br ~ -离子层间f心迁移过程中的能量势垒和f心基态、激发态以及激子能量，对于f心和激子的研究结果与实验符合的很好。 |
| 9. | By using the multi - configuration dirac - fock ( mcdf ) method , the effects of relaxation and correlation on the transition energies and probabilities of electric - dipole allowed ( el ) resonance and intercombination transitions for 2p53s3 - 2p6 in neutral neon have been systematically studied firstly . and the results of the transition energies and probabilities ( lifetimes ) in length and velocity gauge have been presented . during the calculation , in order to consider the rearrangement effects of the bound - state density and some important correlations , the asfs of transition initial - and final - states were divided according to their angular - momentum and parity and calculated , and different number of csfs were included in the expansion of asfs
本文利用多组态dirac - fork ( mcdf )理论方法，通过对辐射跃迁初、末态电子波函数的独立计算以及在原子态波函数的展开中考虑不同数量的组态波函数，系统地研究了弛豫和相关效应对中性ne原子2p ~ 53s ~ ( 1 . 3 ) p _ 1 ~ o - 2p ~ 6 ~ 1s _ 0电偶极共振和复合跃迁的能量以及跃迁几率的影响，给出了长度和速度两种不同规范下激发态的能量和辐射寿命；以中性ne原子的研究为基础，进一步研究了类ne等电子系列离子( z = 11 - 18 )较低的激发组态2p ~ 53s和基组态2p ~ 6的能级结构以及各能级间的辐射跃迁特性。 |
| 10. | Using the multi - configuration dirac - fock method ( mcdf ) , we studied the characteristic of the decay processes of the 4d core excited states of csiv , the low - lying excitation structure of super - heavy element bohrium ( z = 107 ) and the x - ray spectra of the 3d - 4f transitions of highly charged xenon ions in details in this work , by including the electron correlation and the relaxation effects systematically
本论文运用mcdf方法，通过系统考虑电子相关效应和驰豫效应，分别研究了cs离子的4d内壳层激发态衰变动力学特性，超重元素bh ( z = 107 )的低激发态结构以及高离化态氙离子的3d - 4f跃迁产生的x射线谱的结构等问题。 |
