论文标题
快速争夺而没有吸引全息二元性
Fast scrambling without appealing to holographic duality
论文作者
论文摘要
由所有快速加扰器在量子重力上的全息偶性的问题，我们研究了由两种成分组成的不可积分自旋链模型的动力学 - 最近的邻居Ising Ising耦合以及无限范围$ xx $相互作用。与其他快速争夺的多体系统不同，该模型并非对黑洞是双重的。我们使用超时的相关器（OTOC）量化了量子信息的扩散，并证明我们的模型表现出快速争夺广泛的参数制度。对其淬灭动态的模拟发现，OTOC的快速下降伴随着纠缠熵的快速生长，并且磁化强度的迅速变化。最后，在当前的实验设置中提出了我们模型的潜在实现。我们的工作建立了一条有希望的途径来创建快速的扰动者。
Motivated by the question of whether all fast scramblers are holographically dual to quantum gravity, we study the dynamics of a non-integrable spin chain model composed of two ingredients - a nearest neighbor Ising coupling, and an infinite range $XX$ interaction. Unlike other fast scrambling many-body systems, this model is not known to be dual to a black hole. We quantify the spreading of quantum information using an out-of time-ordered correlator (OTOC), and demonstrate that our model exhibits fast scrambling for a wide parameter regime. Simulation of its quench dynamics finds that the rapid decline of the OTOC is accompanied by a fast growth of the entanglement entropy, as well as a swift change in the magnetization. Finally, potential realizations of our model are proposed in current experimental setups. Our work establishes a promising route to create fast scramblers.
