arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/9805048quant-ph
收藏

分束器条件测量中薛定谔猫的产生和监测

Generating and monitoring Schrödinger cats in conditional measurement on a beam splitter

M. Dakna, J. Clausen, L. Knoll, D. -G. Welsch

摘要:

研究了在分束器上通过条件输出测量制备类薛定谔猫态。在该方案中,在压缩真空中制备的模式与在Fock态中制备的模式混合,并且在分束器的输出通道中的一个中执行光计数。通过这种方式,另一个输出通道中的模式在薛定谔猫态中被准备,该薛定谔猫态是光子减少或光子增加的雅可比多项式压缩真空态,这取决于输入Fock态中的光子数与它所投射到的输出Fock态中的光子数之间的差异。两种可能的光计数计划被认为是,和监测猫是“隐藏”在统计混合状态的问题进行了研究。

英文摘要:

Preparation of Schrödinger-cat-like states via conditional output measurement on a beam splitter is studied. In the scheme, a mode prepared in a squeezed vacuum is mixed with a mode prepared in a Fock state and photocounting is performed in one of the output channels of the beam splitter. In this way the mode in the other output channel is prepared in a Schrödinger-cat-like state that is either a photon-subtracted or a photon-added Jacobi polynomial squeezed vacuum state, depending upon the difference between the number of photons in the input Fock state and the number of photons in the output Fock state onto which it is projected. Two possible photocounting schemes are considered, and the problem of monitoring cats that are ``hidden'' in a statistical mixture of states is studied.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑