Superadiabatic generation of cat states in bosonic Josephson junctions under particle losses
Superadiabatic generation of cat states in bosonic Josephson junctions under particle losses
复制标题
DOI：
10.1103/physreva.99.043621
复制
发表时间：
2019-04-22
影响因子：
2.9
通讯作者：
Pawlowski, Krzysztof
中科院分区：
文献类型：
--
作者：
Hatomura, Takuya;Pawlowski, Krzysztof
我们研究了在玻色约瑟夫森结中产生猫态的超绝热方案。生成方案是基于绝热性的捷径，并强烈依赖于宇称守恒。宇称守恒也保证了所产生的态是各种大小的猫态的叠加。宇称也是为了在干涉测量中利用产生的状态而要测量的量。即使在产生过程中大量的颗粒损失，产生方案仍然有效。
We investigate a superadiabatic scheme to produce a cat state in a bosonic Josephson junction in absence and presence of particle losses. The generation scheme is based on shortcuts to adiabaticity and strongly relies on the parity conservation. The parity conservation also ensures that the produced state is a superposition of cat states with various sizes. Parity is also the quantity to be measured in order to utilize the produced state in interferometry. The generation scheme still works even if a number of particle losses during generation are substantial.