//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:39 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:39 zh Copyright ©Acta Physica Sinica All Rights Reserved. 京ICP备05002789号-1 Address: PostCode：100190 Phone: 010-82649829，82649241,82649863 Email: apsoffice@iphy.ac.cn Copyright ©Acta Physica Sinica All Rights Reserved apsoffice@iphy.ac.cn 1000-3290 //www.getgobooth.com/en/article/doi/10.7498/aps.26.459 Author(s): WU GUANG-HAN, LU ZHAO-QI <br/><p>A multicentre variational model is proposed for the study of nuclear cluster forma-tion. The binding energies of Be8 and Li6 have been calculated and found to be in agreement with experiment.</p> <br/>Acta Physica Sinica. 1977 26(6): 459-466. Published 1977-03-05 Author(s): WU GUANG-HAN, LU ZHAO-QI <br/><p>A multicentre variational model is proposed for the study of nuclear cluster forma-tion. The binding energies of Be8 and Li6 have been calculated and found to be in agreement with experiment.</p> <br/>Acta Physica Sinica. 1977 26(6): 459-466. Published 1977-03-05 MULTICENTRE VARIATIONAL MODEL FOR STUDYING THE CLUSTER FORMATION OF Be&lt;sup&lt;8&lt;/sup&lt; AND Li&lt;sup&lt;6&lt;/sup&lt; WU GUANG-HAN, LU ZHAO-QI 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 459-466. article doi:10.7498/aps.26.459 10.7498/aps.26.459 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.459 459-466 //www.getgobooth.com/en/article/doi/10.7498/aps.26.467 Author(s): ZHANG ZONG-YE, LI GUANG-LIE <br/><p>The method which Wigner used for the classification of supermultiplets has been generalized to the excited energy spectrum of hypernuclei. The general form of two-body interaction is obtained which approximately does not break the SU6=SU3?SU2 classification and the coefficients in each of its term are determined from the experimental scattering data. The formula for the energy matrix element under SU6 is also derived. For 9ΛBe*,10ΛBe* and 10ΛΛBe*, some concrete calculations aregiven. We find that 9ΛBe* states seem to agree qualitatively with experiment.</p> <br/>Acta Physica Sinica. 1977 26(6): 467-476. Published 1977-03-05 Author(s): ZHANG ZONG-YE, LI GUANG-LIE <br/><p>The method which Wigner used for the classification of supermultiplets has been generalized to the excited energy spectrum of hypernuclei. The general form of two-body interaction is obtained which approximately does not break the SU6=SU3?SU2 classification and the coefficients in each of its term are determined from the experimental scattering data. The formula for the energy matrix element under SU6 is also derived. For 9ΛBe*,10ΛBe* and 10ΛΛBe*, some concrete calculations aregiven. We find that 9ΛBe* states seem to agree qualitatively with experiment.</p> <br/>Acta Physica Sinica. 1977 26(6): 467-476. Published 1977-03-05 SYMMETRY CLASSIFICATION FOR EXCITED STATES OF HYPERNUCLEI ZHANG ZONG-YE, LI GUANG-LIE 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 467-476. article doi:10.7498/aps.26.467 10.7498/aps.26.467 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.467 467-476 //www.getgobooth.com/en/article/doi/10.7498/aps.26.477 Author(s): YIN PENG-CHENG <br/><p>As a means of establishing a soliton model based on gauge fields for hadrons, the quantum expansion method for soliton solutions recently propesed by T. D. Lee has been generalized to cover more general systems including gauge fields. Our results are similar to those obtained by T. D. Lee, but some of our quantities have a broades content, as in formula (33) - (37).</p> <br/>Acta Physica Sinica. 1977 26(6): 477-485. Published 1977-03-05 Author(s): YIN PENG-CHENG <br/><p>As a means of establishing a soliton model based on gauge fields for hadrons, the quantum expansion method for soliton solutions recently propesed by T. D. Lee has been generalized to cover more general systems including gauge fields. Our results are similar to those obtained by T. D. Lee, but some of our quantities have a broades content, as in formula (33) - (37).</p> <br/>Acta Physica Sinica. 1977 26(6): 477-485. Published 1977-03-05 GENERALIZATION OF QUANTUM EXPANSION OF SOLITON SOLUTIONS YIN PENG-CHENG 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 477-485. article doi:10.7498/aps.26.477 10.7498/aps.26.477 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.477 477-485 //www.getgobooth.com/en/article/doi/10.7498/aps.26.486 Author(s): CHEN CHUANG-TIAN <br/><p>Based on (MO6) ionic grouping model as previously proposed in (I), we have calculated the various electro-optical coefficients as well as the optical second harmonic coefficients for LiNbO3, LiTaO3, KNbO3, and BNN crystals. If we assume that the oxygen-octahedra in the crystal lattice of these crystals of Oh symmetry all possess the same energy level and wavefunctions, then the energy level and the wavefunction for LiNbO3, LiTaO3, KNbO3, and BNN erystals of C3ν, or C2ν symmetry can be found upon applying the theory of group representations. Furthermore, by using the ABDP theory, we have calculated their electro-optical and optical second harmonic coefficients. It is interesting to note that without introducing any adjustable parameters the calculated values agree satisfactorily with the experimental data. The dependence of the magnitude and the sign of the optical second harmonic coefficients for these crystals upon the degree of the oxygen-oetahedra distortion has also been interpreted theoretically in this paper. We have thus arrived at the following conclusions:(1) The ionic grouping theory of the deformed oxygen-octahedra model proves to be appropriate not only for the perovskite-type structure but also for the tungsten bronze and LiNbO3 type structures.(2) In crystals of the tungsten bronze and LiNbO3 type structure, it is the ionic bonds that make major contribution to the electro-optical and optical second harmonic effects. As the covalent nature of bonds in the LiTaO3 crystal exceeds that in the LiNbO3 crystal, the non-linear optical effects in the LiTaO3 erystal are weaker than those in the LiNbO3 crystal.(3) The magnitude and the sign of the optical second harmonic coefficients for these crystals depend upon the degree of the oxgen-octahedra distortion.</p> <br/>Acta Physica Sinica. 1977 26(6): 486-499. Published 1977-03-05 Author(s): CHEN CHUANG-TIAN <br/><p>Based on (MO6) ionic grouping model as previously proposed in (I), we have calculated the various electro-optical coefficients as well as the optical second harmonic coefficients for LiNbO3, LiTaO3, KNbO3, and BNN crystals. If we assume that the oxygen-octahedra in the crystal lattice of these crystals of Oh symmetry all possess the same energy level and wavefunctions, then the energy level and the wavefunction for LiNbO3, LiTaO3, KNbO3, and BNN erystals of C3ν, or C2ν symmetry can be found upon applying the theory of group representations. Furthermore, by using the ABDP theory, we have calculated their electro-optical and optical second harmonic coefficients. It is interesting to note that without introducing any adjustable parameters the calculated values agree satisfactorily with the experimental data. The dependence of the magnitude and the sign of the optical second harmonic coefficients for these crystals upon the degree of the oxygen-oetahedra distortion has also been interpreted theoretically in this paper. We have thus arrived at the following conclusions:(1) The ionic grouping theory of the deformed oxygen-octahedra model proves to be appropriate not only for the perovskite-type structure but also for the tungsten bronze and LiNbO3 type structures.(2) In crystals of the tungsten bronze and LiNbO3 type structure, it is the ionic bonds that make major contribution to the electro-optical and optical second harmonic effects. As the covalent nature of bonds in the LiTaO3 crystal exceeds that in the LiNbO3 crystal, the non-linear optical effects in the LiTaO3 erystal are weaker than those in the LiNbO3 crystal.(3) The magnitude and the sign of the optical second harmonic coefficients for these crystals depend upon the degree of the oxgen-octahedra distortion.</p> <br/>Acta Physica Sinica. 1977 26(6): 486-499. Published 1977-03-05 AN IONIC GROUPING THEORY OF THE ELECTRO-OPTICAL AND NON-LINEAR OPTICAL EFFECTS OF CRYSTALS (Ⅲ)——A THEORETICAL CALCULATION OF THE ELECTRO-OPTICAL AND OPTICAL SECOND HARMONIC COEFFICIENTS FOR LiNbO&lt;sub&lt;3&lt;/sub&lt;, LiTaO&lt;sub&lt;3&lt;/sub&lt;,KNbO&lt;sub&lt;3&lt;/sub&lt;, AND BNN CRYSTALS BASED ON A DEFO CHEN CHUANG-TIAN 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 486-499. article doi:10.7498/aps.26.486 10.7498/aps.26.486 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.486 486-499 //www.getgobooth.com/en/article/doi/10.7498/aps.26.500 Author(s): LI TIE-CHENG, XU ZHENG-YI <br/><p>By using the Debye-Hückel equation and the Poisson equation, the almost one-dimensional ionic conductive behaviors of α-LiIO3 have been analysed theoretically. The current across the boundaries between the crystal and metallic electrodes is con-sidered to be limited by rate processes. The asymmetry of the ± c-directions due to spontaneous polarization of the crystal has been taken into consideration. The explicit expression derived for the apparent DC conductivity is satisfactory in explaining the characteristic behavior of α-LiIO3, e.g., the dependence of conductivity on applied voltage, as shown experimentally in [1]. The functional relationship between the AC dielectric constant and the bias field (cf. [1]) is interpreted partially by following the approach given in [2]. It is also pointed out that the weak current constantly flowing through the wire connecting the end surfaces of opposite polarity of an α-LiIO3 single crystal (cf. [3]), as well as similar phenomena observed in our own laboratory on poled ferroelectrics such as BaxSr1-xNb2O6(x～1/3), are caused by the crystal-line polarity EMF. This EMF coexists with the spontaneous, polarization Ps.</p> <br/>Acta Physica Sinica. 1977 26(6): 500-508. Published 1977-03-05 Author(s): LI TIE-CHENG, XU ZHENG-YI <br/><p>By using the Debye-Hückel equation and the Poisson equation, the almost one-dimensional ionic conductive behaviors of α-LiIO3 have been analysed theoretically. The current across the boundaries between the crystal and metallic electrodes is con-sidered to be limited by rate processes. The asymmetry of the ± c-directions due to spontaneous polarization of the crystal has been taken into consideration. The explicit expression derived for the apparent DC conductivity is satisfactory in explaining the characteristic behavior of α-LiIO3, e.g., the dependence of conductivity on applied voltage, as shown experimentally in [1]. The functional relationship between the AC dielectric constant and the bias field (cf. [1]) is interpreted partially by following the approach given in [2]. It is also pointed out that the weak current constantly flowing through the wire connecting the end surfaces of opposite polarity of an α-LiIO3 single crystal (cf. [3]), as well as similar phenomena observed in our own laboratory on poled ferroelectrics such as BaxSr1-xNb2O6(x～1/3), are caused by the crystal-line polarity EMF. This EMF coexists with the spontaneous, polarization Ps.</p> <br/>Acta Physica Sinica. 1977 26(6): 500-508. Published 1977-03-05 THEORETICAL ANALYSIS OF THE ELECTRICAL CONDUCTION AND DIELECTRIC BEHAVIOR OF α-LiIO&lt;sub&lt;3&lt;/sub&lt; SINGLE CRYSTALS LI TIE-CHENG, XU ZHENG-YI 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 500-508. article doi:10.7498/aps.26.500 10.7498/aps.26.500 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.500 500-508 //www.getgobooth.com/en/article/doi/10.7498/aps.26.509 Author(s): WU HANG-SHENG, CAI JIAN-HUA, GONG CHANG-DE, JI GUANG-DA, CAI JUN-DAO <br/><p>In this paper, we have solved the Eliashberg equation for T=Tc, obtaining a series expression for the superconducting critical temperature Tc=α0(μ*)(λ〈ω2〉)1/2{1+1/λα1(μ*)〈ω4&lt;/〈ω2&lt;2+1/λ2(α21(μ*)〈ω6&lt;/〈ω2&lt;3+α22(μ*)〈ω4&lt;2/〈ω2&lt;4) +1/λ3(α31(μ*)〈ω8&lt;/〈ω2&lt;4+α32(μ*)(〈ω4&lt;〈ω6&lt;)/〈ω2&lt;5)+α33(μ*)〈ω4&lt;3/〈ω2&lt;6+……}, where α0(μ*), α1(μ*) etc. depend upon μ* only. This new Tc formula shows that Tc is determined not only by λ, 〈ω2〉 and μ*, but also by the various moments 〈ω2n〉 of the effective phonon spectrum.</p> <br/>Acta Physica Sinica. 1977 26(6): 509-520. Published 1977-03-05 Author(s): WU HANG-SHENG, CAI JIAN-HUA, GONG CHANG-DE, JI GUANG-DA, CAI JUN-DAO <br/><p>In this paper, we have solved the Eliashberg equation for T=Tc, obtaining a series expression for the superconducting critical temperature Tc=α0(μ*)(λ〈ω2〉)1/2{1+1/λα1(μ*)〈ω4&lt;/〈ω2&lt;2+1/λ2(α21(μ*)〈ω6&lt;/〈ω2&lt;3+α22(μ*)〈ω4&lt;2/〈ω2&lt;4) +1/λ3(α31(μ*)〈ω8&lt;/〈ω2&lt;4+α32(μ*)(〈ω4&lt;〈ω6&lt;)/〈ω2&lt;5)+α33(μ*)〈ω4&lt;3/〈ω2&lt;6+……}, where α0(μ*), α1(μ*) etc. depend upon μ* only. This new Tc formula shows that Tc is determined not only by λ, 〈ω2〉 and μ*, but also by the various moments 〈ω2n〉 of the effective phonon spectrum.</p> <br/>Acta Physica Sinica. 1977 26(6): 509-520. Published 1977-03-05 THEORY OF THE SUPERCONDUCTING CRITICAL TEMPERATURE (Ⅰ) WU HANG-SHENG, CAI JIAN-HUA, GONG CHANG-DE, JI GUANG-DA, CAI JUN-DAO 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 509-520. article doi:10.7498/aps.26.509 10.7498/aps.26.509 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.509 509-520 //www.getgobooth.com/en/article/doi/10.7498/aps.26.521 Author(s): XU JI-AN, HU JING-ZHU <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 521-525. Published 1977-03-05 Author(s): XU JI-AN, HU JING-ZHU <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 521-525. Published 1977-03-05 X-RAY DIFFRACTION UNDER HIGH PRESSURE XU JI-AN, HU JING-ZHU 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 521-525. article doi:10.7498/aps.26.521 10.7498/aps.26.521 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.521 521-525 //www.getgobooth.com/en/article/doi/10.7498/aps.26.526 Author(s): WANG XIAO-GUANG, LI XIAO-LIN, ZHAO PEI-YING, CHENG XI-YOU <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 526-530. Published 1977-03-05 Author(s): WANG XIAO-GUANG, LI XIAO-LIN, ZHAO PEI-YING, CHENG XI-YOU <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 526-530. Published 1977-03-05 ELECTROMAGNETIC DECAY OF NEW PARTICLES AND THE PROPERTIES OF STRATONS WANG XIAO-GUANG, LI XIAO-LIN, ZHAO PEI-YING, CHENG XI-YOU 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 526-530. article doi:10.7498/aps.26.526 10.7498/aps.26.526 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.526 526-530 //www.getgobooth.com/en/article/doi/10.7498/aps.26.531 Author(s): ZHAO BAO-HENG, FAN HONG-YI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 531-534. Published 1977-03-05 Author(s): ZHAO BAO-HENG, FAN HONG-YI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 531-534. Published 1977-03-05 GAUGE CONDITIONS AND THE BREAKDOWN OF THE SLAVNOV-TAYLOR IDENTITIES ZHAO BAO-HENG, FAN HONG-YI 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 531-534. article doi:10.7498/aps.26.531 10.7498/aps.26.531 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.531 531-534 //www.getgobooth.com/en/article/doi/10.7498/aps.26.535 Author(s): LI TlE-ZHONG <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 535-539. Published 1977-03-05 Author(s): LI TlE-ZHONG <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 535-539. Published 1977-03-05 NEW PARTICLES AND A POSSIBLE EXTENSION OF THE SYMMETRY OF THE STRATON MODEL THEORY-SU&lt;sub&lt;5&lt;/sub&lt; LI TlE-ZHONG 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 535-539. article doi:10.7498/aps.26.535 10.7498/aps.26.535 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.535 535-539 //www.getgobooth.com/en/article/doi/10.7498/aps.26.540 Author(s): HE ZUO-XIU, ZHANG ZHAO-XI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 540-543. Published 1977-03-05 Author(s): HE ZUO-XIU, ZHANG ZHAO-XI <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 540-543. Published 1977-03-05 ON THE RENORMALIZATION THEORY OF THE ULTRAVIOLET AND INFRARED DIVERGENCES IN THE QUANTIZED THEORY OF COMPOSITE PARTICLES HE ZUO-XIU, ZHANG ZHAO-XI 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 540-543. article doi:10.7498/aps.26.540 10.7498/aps.26.540 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.540 540-543 //www.getgobooth.com/en/article/doi/10.7498/aps.26.544 Author(s): LI HUA-ZHONG, XIAN DING-CHANG, GUO SHUO-HONG <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 544-549. Published 1977-03-05 Author(s): LI HUA-ZHONG, XIAN DING-CHANG, GUO SHUO-HONG <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 544-549. Published 1977-03-05 SOLITON SOLUTIONS OF NON-ABELIAN GAUGE FIELDS LI HUA-ZHONG, XIAN DING-CHANG, GUO SHUO-HONG 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 544-549. article doi:10.7498/aps.26.544 10.7498/aps.26.544 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.544 544-549 //www.getgobooth.com/en/article/doi/10.7498/aps.26.550 Author(s): CAI JIAN-HUA, WU HANG-SHENG <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 550-552. Published 1977-03-05 Author(s): CAI JIAN-HUA, WU HANG-SHENG <br/><p></p> <br/>Acta Physica Sinica. 1977 26(6): 550-552. Published 1977-03-05 SEARCH FOR A RIGOROUS FORMULA OF THE SUPERCONDUCTING CRITICAL TEMPERATURE CAI JIAN-HUA, WU HANG-SHENG 1977-03-05 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1977 26(6): 550-552. article doi:10.7498/aps.26.550 10.7498/aps.26.550 Acta Physica Sinica 26 6 1977-03-05 //www.getgobooth.com/en/article/doi/10.7498/aps.26.550 550-552

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