10 citations · 31 across the 20 of their papers we have counts for
7 papers · 2 filters
Optimal Hamiltonian recognition of unknown quantum dynamics
Chengkai Zhu, Shuyu He, Yu-Ao Chen +2
Identifying unknown Hamiltonians from their quantum dynamics is a pivotal challenge in quantum technologies. In this paper, we introduce Hamiltonian recognition, a framework that b…
Amortized Stabilizer Rényi Entropy of Quantum Dynamics
Chengkai Zhu, Yu-Ao Chen, Zanqiu Shen +3
Unraveling the secrets of how much nonstabilizerness a quantum dynamic can generate is crucial for harnessing the power of magic states, the essential resources for achieving quant…
Classical communication cost of a bipartite quantum channel assisted by non-signalling correlations
Chengkai Zhu, Xuanqiang Zhao, Xin Wang
Understanding the classical communication cost of simulating a quantum channel is a fundamental problem in quantum information theory, which becomes even more intriguing when consi…
Quantum Coherence and Distinguishability as Complementary Resources: A Resource-Theoretic Perspective from Wave-Particle Duality
Zhiping Liu, Chengkai Zhu, Hua-Lei Yin +1
Wave-particle duality, a fundamental principle of quantum mechanics, encapsulates the complementary relationship between the wave and particle behaviors of quantum systems. In this…
Circuit Knitting Faces Exponential Sampling Overhead Scaling Bounded by Entanglement Cost
Mingrui Jing, Chengkai Zhu, Xin Wang
Circuit knitting, a method for connecting quantum circuits across multiple processors to simulate nonlocal quantum operations, is a promising approach for distributed quantum compu…
Entanglement cost of discriminating quantum states under locality constraints
Chenghong Zhu, Chengkai Zhu, Zhiping Liu +1
The unique features of entanglement and non-locality in quantum systems, where there are pairs of bipartite states perfectly distinguishable by general entangled measurements yet i…
Reversing Unknown Quantum Processes via Virtual Combs for Channels with Limited Information
Chengkai Zhu, Yin Mo, Yu-Ao Chen +1
The inherent irreversibility of quantum dynamics for open systems poses a significant barrier to the inversion of unknown quantum processes. To tackle this challenge, we propose th…