14 citations · 86 across the 16 of their papers we have counts for
4 papers · 1 filter
Unification of spatiotemporal quantum formalisms: mapping between process and pseudo-density matrices via multiple-time states
Xiangjing Liu, Zhian Jia, Yixian Qiu +2
We consider the relation between three different approaches to defining quantum states across several times and locations: the pseudo-density matrix (PDM), the process matrix, and…
The spatiotemporal doubled density operator: a unified framework for analyzing spatial and temporal quantum processes
Zhian Jia, Dagomir Kaszlikowski
The measurement statistics for spatial and temporal quantum processes are produced through distinct mechanisms. Measurements that are space-like separated exhibit non-signaling beh…
Quantum space-time marginal problem: global causal structure from local causal information
Zhian Jia, Minjeong Song, Dagomir Kaszlikowski
Spatial and temporal quantum correlations can be unified in the framework of the pseudo-density operators, and quantum causality between the involved events in an experiment is enc…
On weak Hopf symmetry and weak Hopf quantum double model
Zhian Jia, Sheng Tan, Dagomir Kaszlikowski +1
Symmetry is a central concept for classical and quantum field theory, usually, symmetry is described by a finite group or Lie group. In this work, we introduce the weak Hopf algebr…