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10 papers · 2 filters
Error-mitigated initialization of surface codes with non-Pauli stabilizers
Zhi-Cheng He, Zheng-Yuan Xue
Quantum error correction represents a significant milestone in large-scale quantum computing, with the surface code being a prominent strategy due to its high error threshold and e…
Robust and optimal loading of general classical data into quantum computers
Xiao-Ming Zhang
As standard data loading processes, quantum state preparation and block-encoding are critical and necessary processes for quantum computing applications, including quantum machine…
Determining non-Hermitian parent Hamiltonian from a single eigenstate
Xu-Dan Xie, Zheng-Yuan Xue, Dan-Bo Zhang
A quantum state for being an eigenstate of some local Hamiltonian should be constraint by zero energy variance and consequently, the constraint is rather strong that a single eigen…
Emergent non-Hermitian conservation laws at exceptional points
Zuo Wang, Liang He
Non-Hermitian systems can manifest rich static and dynamical properties at their exceptional points (EPs). Here, we identify yet another class of distinct phenomena that is hinged…
Protecting Quantum Information via Many-Body Dynamical Localization
Ling-Zhi Tang, Dan-Wei Zhang, Hai-Feng Yu +1
Dynamically localized states in quantum many-body systems are fundamentally important in understanding quantum thermalization and have applications in quantum information processin…
Exact Correlation Functions for Dual-Unitary Quantum circuits with exceptional points
Xi-Dan Hu, Dan-Bo Zhang
Dual-unitary quantum circuits can provide analytic spatiotemporal correlation functions of local operators from transfer matrices, enriching our understanding of quantum dynamics w…