From the 1 of 5 linked papers with an AI index.
5 papers
Coherent error induced phase transition
Hanchen Liu, Xiao Chen
The paper examines how coherent unitary errors impact logical information in stabilizer quantum error‑correcting codes and discovers a phase transition at a critical error rate whe…
Diffusive Relaxation of Participation Entropy in U(1)-symmetric Dynamics
Hanchen Liu, Tianci Zhou, Xiao Chen
Participation entropy (PE) quantifies the spread of a many-body wavefunction across configuration space. While PE relaxes rapidly in generic chaotic systems, we show that $\mathrm{…
Critical behaviors of magic and participation entropy at measurement induced phase transitions
Eliot Heinrich, Hanchen Liu, Tianci Zhou +1
We study the participation and stabilizer entropy of non-unitary quantum circuit dynamics, focusing on the critical line that separates the low-entanglement spin-glass phase and th…
From Quantum Circuits with Ultraslow Dynamics to Classical Plaquette Models
Vikram Ravindranath, Hanchen Liu, Xiao Chen
We introduce a family of hybrid quantum circuits involving unitary gates and projective measurements that display a measurement-induced phase transition. Remarkably, the volume-law…
Quantum Entanglement Phase Transitions and Computational Complexity: Insights from Ising Models
Hanchen Liu, Vikram Ravindranath, Xiao Chen
In this paper, we construct 2-dimensional bipartite cluster states and perform single-qubit measurements on the bulk qubits. We explore the entanglement scaling of the unmeasured 1…