物理学报
物理學報
물이학보
2013年
6期
211-216
,共6页
四能级单原子%原子相干%连续变量纠缠
四能級單原子%原子相榦%連續變量糾纏
사능급단원자%원자상간%련속변량규전
four-level single-atom%atomic coherence%continuous-variable entanglement
通过两个经典微波场驱动相应的原子精细跃迁诱导产生原子相干,研究在双模单原子激光器中连续变量量子纠缠的制备和演化.研究结果表明:微波场强度可以有效地控制腔场纠缠特性;通过调节相应的频率失谐,能够同步增加腔场总的平均光子数、腔模间的纠缠时间和强度.
通過兩箇經典微波場驅動相應的原子精細躍遷誘導產生原子相榦,研究在雙模單原子激光器中連續變量量子糾纏的製備和縯化.研究結果錶明:微波場彊度可以有效地控製腔場糾纏特性;通過調節相應的頻率失諧,能夠同步增加腔場總的平均光子數、腔模間的糾纏時間和彊度.
통과량개경전미파장구동상응적원자정세약천유도산생원자상간,연구재쌍모단원자격광기중련속변량양자규전적제비화연화.연구결과표명:미파장강도가이유효지공제강장규전특성;통과조절상응적빈솔실해,능구동보증가강장총적평균광자수、강모간적규전시간화강도.
@@@@In this paper, we discuss the generation and evolution of continuous-variable entanglement in a two-mode single-atom laser, where the atomic coherence is induced by two classical microwave fields, which drive the corresponding fine atomic transitions. The results show that the intensity of the microwave field can influence effectively the entanglement properties of the cavity field. In addition, our numerical results also show that the intensity and the period of entanglement between the two cavity modes as well as the total mean photon number of the cavity field can be increased synchronously by adjusting the corresponding frequency detuning.
