1 citations · 1 across the 2 of their papers we have counts for
6 papers
Emergent de Sitter Space and Non-Unitary Tensor Networks from Non-Hermitian Quantum Criticality
Kuang-Hung Chou, Po-Yao Chang
Extending the holographic principle to de Sitter (dS) spacetimes remains one of the most vital open frontiers in quantum gravity, where a microscopic, bottom-up tensor-network fram…
PT symmetry-enriched non-unitary criticality
Kuang-Hung Chou, Xue-Jia Yu, Po-Yao Chang
The interplay between topology and quantum criticality has given rise to the notion of symmetry-enriched criticality, which has attracted considerable attention in recent years. In…
Nodal-line semimetals and their variance
Po-Yao Chang
Topological nodal-line semimetals (NLSMs) are a new family of topological materials characterized by electronic band crossings that form lines in the Brillouin zone. These NLSMs ho…
Biorthogonal quench dynamics of entanglement and quantum geometry in PT-symmetric non-Hermitian systems
Hsueh-Hao Lu, Po-Yao Chang
We explore the quench dynamics of PT-symmetric non-Hermitian systems by utilizing the biorthogonal formalism. We analyze quench dynamics of observable quantities, the quantum geome…
Impurity-induced non-unitary criticality
Heng-Hsi Li, Kuang-Hung Chou, Xueda Wen +1
Quantum impurities give rise to rich physical phenomena, with some exhibiting critical behavior described by conformal field theories (CFTs) in the low-energy limit. In parallel, p…
Phase transitions from Heating to non-heating in SU(1, 1) quantum dynamics: applications to Bose-Einstein condensates and periodically driven coupled oscillators
Heng-Hsi Li, Po-Yao Chang
We study the entanglement properties in non-equilibrium quantum systems with the SU(1, 1) structure. Through Möbius transformation, we map the dynamics of these systems following…