CAJ | 학술논문

文章主要研究在有限温度下，外加磁场和DM相互作用对两比特海森堡XY模型中实现量子稠密编码的影响。通过稠密编码的信道容量表达式分析了每个参数对稠密编码的影响并且发现平均耦合常数J-，DM相互作用和各向异性参数J＋对稠密编码起积极作用。均匀磁场B和非均匀磁场b对稠密编码起消极作用。
문장주요연구재유한온도하，외가자장화DM상호작용대량비특해삼보XY모형중실현양자주밀편마적영향。통과주밀편마적신도용량표체식분석료매개삼수대주밀편마적영향병차발현평균우합상수J-，DM상호작용화각향이성삼수J＋대주밀편마기적겁작용。균균자장B화비균균자장b대주밀편마기소겁작용。
In this paper mainly inwestegate the effect of external magnetic field and D--M interaction on realization of dense coding in the Heisenberg spin XY chain at the finit temperature. Throuth the analyt- ical expression for the dense coding capacity we analysed the influences of every related parameter to dense coding are studied in detail. Then we found that average coupling constant J- , D--M interaction and ani- sotropy parameter J＋ have positive effect to the dense coding . But the external magnetic fields b and B turn out to be negative for this model.