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quant-ph2026
(Almost) quadruply optimal unitary designs in 1D
Guoding Liu, Jonas Helsen
We construct -qubit approximate unitary -designs in 1D systems, achieving circuit depth with relative error and requiring $O(…
quant-ph2026
Can scrambling protect quantum state distinguishability under noise?
Guoding Liu, Chushi Qin, Zitai Xu +2
Quantum state distinguishability is a fundamental concept in quantum information science that underpins a wide range of important practical tasks. Traditionally formulated for pair…
quant-ph2026
Entanglement distillation based on Hamiltonian dynamics
Zitai Xu, Guoding Liu
Efficient entanglement distillation is a central task in quantum information science and future quantum networks. At the core of distillation protocols are the quantum error correc…