苏州大学学报(自然科学版)
囌州大學學報(自然科學版)
소주대학학보(자연과학판)
JOURNAL OF SUZHOU UNIVERSITY(NATURAL SCIENCE)
2009年
2期
52-57
,共6页
隐形传送%纠缠态%腔QED
隱形傳送%糾纏態%腔QED
은형전송%규전태%강QED
teleportation%entangled state%cavity QED
首先,针对传递三粒子W态的困难,提出了腔QED中的两种方案来完成W态的隐形传态.在一种方案中,我们利用一个EPR对和GHZ态来作为量子通道,在真空腔中实现了对W态的传送.而第二种方案与第一种不同之处是,我们使用了两个EPR对来作为量子通道,并且引入了一个附加粒子来完成传态的.此外,这些方案的显著优点是不用Bell基测量,而且可忽略腔场热作用和腔延迟作用的影响.
首先,針對傳遞三粒子W態的睏難,提齣瞭腔QED中的兩種方案來完成W態的隱形傳態.在一種方案中,我們利用一箇EPR對和GHZ態來作為量子通道,在真空腔中實現瞭對W態的傳送.而第二種方案與第一種不同之處是,我們使用瞭兩箇EPR對來作為量子通道,併且引入瞭一箇附加粒子來完成傳態的.此外,這些方案的顯著優點是不用Bell基測量,而且可忽略腔場熱作用和腔延遲作用的影響.
수선,침대전체삼입자W태적곤난,제출료강QED중적량충방안래완성W태적은형전태.재일충방안중,아문이용일개EPR대화GHZ태래작위양자통도,재진공강중실현료대W태적전송.이제이충방안여제일충불동지처시,아문사용료량개EPR대래작위양자통도,병차인입료일개부가입자래완성전태적.차외,저사방안적현저우점시불용Bell기측량,이차가홀략강장열작용화강연지작용적영향.
We have investigated the problem of teleporting a three-atom entangled W state and propose two schemes based on entanglement swapping to complete the teleportation.We put forward the first scheme for the teleportation of W state by using an EPR pair and a GHZ state via vacuum cavities,the second scheme for teleporting W state by using two EPR pairs as quantum channels and introducing an addition atom via thermal cavities.Further more,the distinct advantage of the present schemes are that the Bell-state measurement is not required.The effects of cavity decay and thermal field are all eliminated.