论文标题
约瑟夫森（Josephson
Josephson oscillation in the dissipative Bose-Hubbard dimer
论文作者
论文摘要
我们分析了约瑟夫森在开放式（耗散）玻色 - 哈伯德二聚体中对bose颗粒的振荡。首先，我们将二聚体从真空状态激发到适合观察振荡的状态，该状态通过使用特殊的外部驾驶方案来观察振荡。接下来，我们关闭驾驶并观察振荡。结果表明，约瑟夫森振荡衰减的主要机制是由于开放系统中粒子数量波动而导致的。获得衰减时间的分析估计。
We analyze Josephson's oscillation of Bose particles in the open (dissipative) Bose-Hubbard dimer. First, we excite the dimer from the vacuum state into a state suitable for observing the oscillation by using a special protocol for external driving. Next, we switch off the driving and observe the oscillation. It is shown that the main mechanism for the decay of Josephson's oscillation is the dephasing due to fluctuating number of particles in open systems. An analytical estimate for the decay time is obtained.
