如何理解otoc能表征量子混沌? - 知乎
我暂时不了解它们之间的关系。 最后的最后，尽管OTOC是量子混沌的一个表征，但目前并不能说它的对应表现就是量子混沌的定义。 比如说，量子stadium billard系统的OTOC并没有出现指数增长，尽管 …
Why is this an out-of-time-order (OTOC) correlator?
Apr 9, 2025 · An OTOC is a correlator of operators which are not (Lorentzian) time ordered. Doesn't the Gacia-Mata review you reference indicate, explicitly, that this "smeared" trace is not, in fact, an …
quantum mechanics - Physics Stack Exchange
Apr 21, 2017 · 10 The Out-of-time-ordered correlator (OTOC) is defined as $\langle [W (t),V (0)]^2\rangle$, and can be considered as a new way to extract quantum chaos. However, the …
为什么要研究量子混沌，其应用又体现在哪些方面 ...
他把quantum chaos分成了以上三个方面。我自己的理解 (可能也不完全对)是： Semiclassical quantum chaos: quantum billiards, trace formula, Berry's wave conjecture Eigenbasis quantum chaos: 本征态 …
如何评价谷歌量子人工智能团队的新成果"量子回声 ...
因此， 在量子回声算法中，核心观测量被设定为OTOC (2)。 量子回声技术不仅能够在时空图中直接追踪量子信息在多体系统中的传播速度，更能通过分析多路径干涉，揭示出系统内部极其复杂和深层的量 …
jiyansu - 知乎
Mar 16, 2022 · 回答数 0，获得 0 次赞同OTOC这个物理量貌似很久之前就有，最近几年火起来主要是Stephen Shenker, Douglas Standford等人发展了黑洞混沌理论。 OTOC 描述了一个扰动算符转播一 …
Bound on Quantum Chaos - Physics Stack Exchange
Jan 12, 2019 · I am currently reading the paper A Bound on Chaos. In this paper, they evaluate the quantity C(t), which is an out-of-time-order correlator (OTOC), and use very clever arguments to …
Exact numerical spectrum of the transverse field Ising model
Mar 29, 2025 · My understanding is that the transverse field Ising model (TFIM) can be solved exactly by the Jordan-Wigner transformation. To be precise, starting from the 1D spin-1 ...
如何评价SYK model？ - 知乎
这个方向的进一步发展我认为有赖于一些new insight. 另一方面是这几年提出的information scrambling, OTOC, butterfly velocity, complexity等一些概念，在SYK模型的框架下都能得到很好的计算（比如 …
Out-Of-Time-Correlators for free and interacting field theories
Feb 16, 2022 · The time evolution of the OTOC is supposed to help identify when "quantum chaos" present in a system, and sometimes used to address questions about "eigenstate thermalization", or …