Remarks on Black Hole Complexity Puzzle

No black hole information puzzle in a relational universe

The introduction of a relational time in quantum gravity naturally implies that pure quantum states evolve into mixed quantum states. We show, using a recently proposed concrete implementation, that the rate at which pure states naturally evolve into mixed ones is faster than that due to collapsing into a black hole that later evaporates. This is rather remarkable since the fundamental mechanism for decoherence is usually very weak. Therefore the ``black hole information puzzle'' is rendered de-facto unobservable.

Remarks on matter-gravity entanglement, entropy, information loss and events

I recall my 'matter-gravity entanglement hypothesis' and briefly review the evidence for it, based partly on its seeming ability to resolve a number of puzzles related to quantum black holes including the black hole information loss puzzle. I point out that, according to this hypothesis, there is a quantity, i.e. the universe's 'matter-gravity entanglement entropy' -- which deserves to be considered the 'entropy of the universe' and which, with suitable initial conditions, will plausibly increase monotonically with cosmological time. In the last section, which is more tentative and raises a nu…

量子普适性的基础谜题：从维格纳的朋友到黑洞

Foundational puzzles on quantum universality: From Wigner's friend to black holes

本论文探讨量子理论中的测量问题与黑洞信息悖论，提出扩展维格纳的朋友论证及统一悖论，并分析叠加黑洞的探测器响应，深化对量子实在性和引力的理解。

Quantum Computational Complexity -- From Quantum Information to Black Holes and Back

Quantum computational complexity estimates the difficulty of constructing quantum states from elementary operations, a problem of prime importance for quantum computation. Surprisingly, this quantity can also serve to study a completely different physical problem - that of information processing inside black holes. Quantum computational complexity was suggested as a new entry in the holographic dictionary, which extends the connection between geometry and information and resolves the puzzle of why black hole interiors keep growing for a very long time. In this pedagogical review, we present th…

柯西视界上量子奇点的结构

The Structure of Quantum Singularities on a Cauchy Horizon

本文研究黑洞柯西视界上量子应力-能量张量奇点为何比预期更温和的问题，提出一种基于因果补集算子插入的广义QFT构造，在平坦时空模型W_P中导出了普遍的温和奇点结构，并对所有黑洞柯西视界奇点作出预测。

代数ER=EPR与复杂度转移

Algebraic ER=EPR and Complexity Transfer

该研究提出$G_N \to 0$极限下ER=EPR的代数定义，关联体时空连通性与量子引力系统算子代数结构，给出量子虫洞独立定义，解释全息系统时空非连通性谜题，并指出黑洞蒸发Page时间时高复杂度算子子代数转移的普遍现象。