49 citations · 93 across the 9 of their papers we have counts for
10 papers
Markov length can diverge in systems whose universal physics is spatially Markovian
Yu-Hsueh Chen, Tarun Grover
Conditional mutual information (CMI) probes spatial non-Markovianity and plays a central role in a recently developed framework for defining mixed-state phases based on local rever…
Hierarchical entanglement transitions and hidden area-law sectors in quantum many-body dynamics
Tarun Grover
Chaotic many-body dynamics typically generates volume-law entanglement from initially low-entangled states. We reveal an intricate, hierarchical entanglement structure in local qua…
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…
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…
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…
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…
An analog of topological entanglement entropy for mixed states
Ting-Tung Wang, Menghan Song, Zi Yang Meng +1
We propose the convex-roof extension of quantum conditional mutual information ("co(QCMI)") as a diagnostic of topological order in a mixed state. We focus primarily on topological…
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…
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 (…
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…