论文标题
通过最小化有效维度来增强量子多体疤痕对动态的影响
Enhancing the effect of quantum many-body scars on dynamics by minimising the effective dimension
论文作者
论文摘要
量子多体疤痕被认为是相互作用的Rydberg原子链中长寿相干振荡背后的机制。这些持续的振荡是由于多体疤痕与某些初始状态的重叠。我们表明，“有效维度”是识别多体疤痕系统中非热的初始状态的有用度量。通过最小化有效的维度，我们发现Rydberg链的物理合理的初始状态会导致更明显且更长的振荡，从而突出了多体疤痕对动力学的影响。
Quantum many-body scarring is believed to be the mechanism behind long-lived coherent oscillations in interacting Rydberg atom chains. These persistent oscillations are due to the large overlap of the many-body scars with certain initial states. We show that the "effective dimension" is a useful measure for identifying non-thermalising initial states in many-body scarred systems. By minimising the effective dimension we find physically reasonable initial states of the Rydberg chain that lead to more pronounced and longer lived oscillations, accentuating the effect of the many-body scars on the dynamics.
