CAJ | 학술논문

本文利用转移矩阵方法对两种简单的具有吸引尾的势进行了研究.我们发现反射系数在波矢k→0时R=1,反射率与波矢k在k→0时呈线性关系.这说明在发生阱内量子反射时有利于超冷原子生存,因为超冷原子是低速低能原子.此外,我们可以用一个反射时间变化量Δt来判断量子反射的延迟或者超前.
본문이용전이구진방법대량충간단적구유흡인미적세진행료연구.아문발현반사계수재파시k→0시R=1,반사솔여파시k재k→0시정선성관계.저설명재발생정내양자반사시유리우초랭원자생존,인위초랭원자시저속저능원자.차외,아문가이용일개반사시간변화량Δt래판단양자반사적연지혹자초전.
The analytical transfer matrix method is applied to two simple attractive potential.We find that reflection probabilities R=1 and reflectivity is linear to k when wave vector k→0.The conclusions show that ultracold atoms benefit from quantum reflection.In addition,we can use the change of reflection time Δt to estimate the type of quantum reflection:the delayed or advanced reflection.