论文标题
观察二维偶性激子的代数时间顺序
Observation of Algebraic Time Order for Two-Dimensional Dipolar Excitons
论文作者
论文摘要
代数准长范围的出现是在二维处的超氟相变的关键特征。对于这种降低的尺寸相互作用，在任何有限温度下，都可以与真正的远距离顺序进行bose-Einstein凝结。在这里，我们报告了代数顺序的发生在由双极激发子中的强烈相互作用的量子液体中，该液体被束缚在双极激液中。我们观察到从激发子暂时连贯性的指数衰减的过渡，并伴随着状态方程的普遍缩放行为。我们的结果为Berezinskii-Kosterlitz-在多组分玻色子系统中的berezinskii-kosterlitz-thouless（BKT）过渡提供了有力的证据，该系统受强大的偶性相互作用控制。
Emergence of algebraic quasi-long-range order is a key feature of superfluid phase transitions at two dimensions. For this reduced dimensionality interactions prevent Bose-Einstein condensation with true long range order, at any finite temperature. Here, we report the occurence of algebraic order in a strongly interacting quantum liquid formed by dipolar excitons confined in a bilayer semiconductor heterostructure. We observe a transition from exponential to algebraic decay of the excitons temporal coherence, accompanied by a universal scaling behaviour of the equation of state. Our results provide strong evidence for a Berezinskii-Kosterlitz-Thouless (BKT) transition in a multi-component boson-like system governed by strong dipolar interactions.
