485 citations · 744 across the 7 of their papers we have counts for
6 papers · 1 filter
Quantum Causal Influence
Jordan Cotler, Xizhi Han, Xiao-Liang Qi +1
We introduce a framework to study the emergence of time and causal structure in quantum many-body systems. In doing so, we consider quantum states which encode spacetime dynamics,…
Space-time random tensor networks and holographic duality
Xiao-Liang Qi, Zhao Yang
In this paper we propose a space-time random tensor network approach for understanding holographic duality. Using tensor networks with random link projections, we define boundary t…
Butterfly velocity and bulk causal structure
Xiao-Liang Qi, Zhao Yang
The butterfly velocity was recently proposed as a characteristic velocity of chaos propagation in a local system. Compared to the Lieb-Robinson velocity that bounds the propagation…
Holographic coherent states from random tensor networks
Xiao-Liang Qi, Zhao Yang, Yi-Zhuang You
Random tensor networks provide useful models that incorporate various important features of holographic duality. A tensor network is usually defined for a fixed graph geometry spec…
Holographic duality from random tensor networks
Patrick Hayden, Sepehr Nezami, Xiao-Liang Qi +3
Tensor networks provide a natural framework for exploring holographic duality because they obey entanglement area laws. They have been used to construct explicit toy models realizi…
Bidirectional holographic codes and sub-AdS locality
Zhao Yang, Patrick Hayden, Xiao-Liang Qi
Tensor networks implementing quantum error correcting codes have recently been used to construct toy models of holographic duality explicitly realizing some of the more puzzling fe…