71 citations · 97 across the 6 of their papers we have counts for
4 papers · 1 filter
Holographic View of Mixed-State Symmetry-Protected Topological Phases in Open Quantum Systems
Shijun Sun, Jian-Hao Zhang, Zhen Bi +1
We establish a holographic duality between d-dimensional mixed-state symmetry-protected topological phases (mSPTs) and (d+1)-dimensional subsystem symmetry-protected topological st…
Strong-to-weak spontaneous breaking of 1-form symmetry and intrinsically mixed topological order
Carolyn Zhang, Yichen Xu, Jian-Hao Zhang +3
Topological orders in 2+1d are spontaneous symmetry-breaking (SSB) phases of 1-form symmetries in pure states. The notion of symmetry is further enriched in the context of mixed st…
Strong-to-Weak Spontaneous Symmetry Breaking in Mixed Quantum States
Leonardo A. Lessa, Ruochen Ma, Jian-Hao Zhang +3
Symmetry in mixed quantum states can manifest in two distinct forms: strong symmetry, where each individual pure state in the quantum ensemble is symmetric with the same charge, an…
Locally Purified Density Operators for Symmetry-Protected Topological Phases in Mixed States
Yuchen Guo, Jian-Hao Zhang, Hao-Ran Zhang +2
We propose a tensor network approach known as the locally purified density operator (LPDO) to investigate the classification and characterization of symmetry-protected topological…