论文标题
拓扑结构域壁的相干传递
Coherent transfer of topological domain walls
论文作者
论文摘要
我们证明了拓扑结构域壁相互作用的相互转移在一维相互作用的Bose-Einstein冷凝物链中。拓扑保护源于开放性系统中的空间图案泵。作为所提出现象的测试床设置，我们认为具有嵌入式量子井的耦合微柱链，具有激子 - 果龙的共振。域壁的转移是由域壁附近的空间定位的绝热泵调制驱动的。随机计算证明了域壁转移的连贯性质。对于适当的系统参数，在多次过渡后保留了相干度，这为相干量子状态的远程转移铺平了道路。
We demonstrate the controlled coherent transfer of topological domain walls in a one-dimensional non-Hermitian chain of interacting Bose-Einstein condensates. The topological protection stems from a spatially patterned pump in an open-dissipative system. As a testbed setup of the proposed phenomenon, we consider a chain of coupled micropillars with embedded quantum wells, possessing exciton-polariton resonances. The transfer of a domain wall is driven by spatially localised, adiabatic pump modulation in the vicinity of the domain wall. The stochastic calculations prove the coherent nature of the domain wall transfer. For appropriate system parameters the coherence degree is preserved after multiple transitions, paving the way towards long-range transfer of a coherent quantum state.
