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131.
An improved lattice action for gauge theories with Wilson fermions is presented. 相似文献
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Galvanomagnetic effects in tellurium with carrier concentrations ranges from 1014 ∽7×1015cm-3 were measured at liquid helium temperatures in intense magnetic fields up to 90 kOe. In slightly doped crystals, whose carrier concentrations were about 3 ∽ 7 × 1015cm-3, the magnetic field dependences of the Hall coefficient and the transverse magnetoresistance were found to be different from those in purer crystals. The results can be explained by assuming the existence of an impurity band and by taking into account the complicated structure of the Landau levels. 相似文献
135.
Noboru Ito 《Journal of Combinatorial Theory, Series A》1980,29(2):251-253
A lower bound is given for the minimum weight of the symmetry code C(q) over GF(3), which is introduced by Pless [3]. 相似文献
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Noboru Suzuki 《International journal of quantum chemistry》1977,12(1):19-28
The theory for treating exchange interactions between atoms or molecules as a perturbation, which was first propoed by Jansen, is extended to general cases by the use of the group algebraic technique and a nonorthogonal basis set. As a result, a new expresion for the perturbation ket and energy of each order is obtained. A comparion of the expression with those presented by other investigators is made. 相似文献
139.
Naruse M Miyazaki T Kubota F Kawazoe T Kobayashi K Sangu S Ohtsu M 《Optics letters》2005,30(2):201-203
A nanoscale data summation architecture is proposed and experimentally demonstrated based on the optical near-field interaction between quantum dots. Based on local electromagnetic interactions between a few nanometric elements via optical near fields, we can combine multiple excitations at a certain quantum dot, which allows construction of a summation architecture. Summation plays a key role for content-addressable memory, which is one of the most important functions in optical networks. 相似文献
140.
The generation and recognition of a record-length 511-chip optical code is experimentally demonstrated by use of a superstructured fiber Bragg grating (SSFBG) with a chip rate of 640 Gchips/s. Very high reflectivity (92%) is achieved with high-quality correlation properties. The temperature deviation tolerance is approximately +/- 0.3 degrees C, which is within the package's temperature stability range (+/- 0.1 degrees C). Experimental results show good agreement with the theory. They indicate the SSFBG's potential for processing a long optical code with an ultrahigh chip rate, which could significantly improve the system's performance. 相似文献