Moiré superlattices of semiconducting transition metal dichalcogenides enable unprecedented spatial control of electron wavefunctions, leading to emerging quantum states. The breaking of translational symmetry further introduces a new degree of freedom: high symmetry moiré sites of energy minima behaving as spatially separated quantum dots. We demonstrate the superposition between two moiré sites by constructing a trilayer WSe₂/monolayer WS₂ moiré heterojunction. The two moiré sites in the first layer WSe₂ interfacing WS₂ allow the formation of two different interlayer excitons, with the hole residing in either moiré site of the first layer WSe₂ and the electron in the third layer WSe₂. An electric field can drive the hybridization of either of the interlayer excitons with the intralayer excitons in the third WSe₂ layer, realizing the continuous tuning of interlayer exciton hopping between two moiré sites and a superposition of the two interlayer excitons, distinctively different from the natural trilayer WSe₂.

半导体过渡金属二硫化物的莫尔超晶格实现了对电子波函数的前所未有的空间控制，从而产生了量子态。平移对称性的打破进一步引入了一个新的自由度：能量最小值的高对称莫尔位点表现为空间分离的量子点。我们通过构建三层 WSe₂/单层 WS₂ 莫尔异质结来证明两个莫尔位点之间的叠加。第一层 WSe₂ 中的两个莫尔位点与_WS2 相接，允许形成两个不同的层间激子，空穴位于第一层 WSe₂ 的任一莫尔位点，电子位于第三层 WSe₂ 中。电场可以驱动任一层间激子与第三层 WSe₂ 中的层内激子杂化，实现两个莫尔位点之间层间激子跳跃的连续调节和两个层间激子的叠加，与天然的三层 WSe₂ 截然不同。