activity
20232026
most citedSeparability transitions in topological states induced by local decoherence

49 citations · 84 across the 8 of their papers we have counts for

collaborators

8 papers

quant-ph2026

Renormalization group and long-range conditional mutual information in hierarchical models

Yu-Hsueh Chen

A departure of a mixed quantum state from a local Gibbs description is generally invisible to local observables but can be detected by the conditional mutual information (CMI). Her…

cond-mat.stat-mech2026

Non-perturbative constraints on stability and renormalization group flows in nonequilibrium matter

Yu-Hsueh Chen, Tarun Grover

We derive constraints on renormalization group (RG) flows and stability of phases in nonequilibrium systems using quantum information inequalities. These constraints involve condit…

cond-mat.stat-mech2026

Local Reversibility and Divergent Markov Length in 1+1-D Directed Percolation

Yu-Hsueh Chen, Tarun Grover

Recent progress in open many-body quantum systems has highlighted the importance of the Markov length, the characteristic scale over which conditional correlations decay. It has be…

cond-mat.str-el2025★ 1 cited

Analogs of deconfined quantum criticality for non-invertible symmetry breaking in 1d

Yu-Hsueh Chen, Tarun Grover

The spontaneous breaking of non-invertible symmetries can lead to exotic phenomena such as coexistence of order and disorder. Here we explore second-order phase transitions in 1d s…

quant-ph2025★ 1 cited

Zipping many-body quantum states: a scalable approach to diagonal entropy

Yu-Hsueh Chen, Tarun Grover

The outcomes of projective measurements on a quantum many-body system in a chosen basis are inherently probabilistic. The Shannon entropy of this probability distribution (the "dia…

quant-ph2024

Unconventional topological mixed-state transition and critical phase induced by self-dual coherent errors

Yu-Hsueh Chen, Tarun Grover

A topological phase can undergo a phase transition driven by anyon condensation. A potential obstruction to such a mechanism could arise if there exists a symmetry between anyons t…

quant-ph2023★ 33 cited

Symmetry-enforced many-body separability transitions

Yu-Hsueh Chen, Tarun Grover

We study quantum many-body mixed states with a symmetry from the perspective of separability, i.e., whether a mixed state can be expressed as an ensemble of short-range entangled (…

quant-ph2023★ 49 cited

Separability transitions in topological states induced by local decoherence

Yu-Hsueh Chen, Tarun Grover

We study states with intrinsic topological order subjected to local decoherence from the perspective of separability, i.e., whether a decohered mixed state can be expressed as an e…