2 papers
quant-ph2025
Non-Hermitian entanglement dip from scaling-induced exceptional criticality
Sirui Liu, Hui Jiang, Wen-Tan Xue +4
It is well established that the entanglement entropy of a critical system generally scales logarithmically with system size. Yet, in this work, we report a new class of non-Hermiti…
quant-ph2025
Higher-order protection of quantum gates: Hamiltonian engineering coordinated with dynamical decoupling
P. Z. Zhao, Tianqi Chen, Sirui Liu +1
Dynamical decoupling represents an active approach towards the protection of quantum memories and quantum gates. Because dynamical decoupling operations can interfere with a system…