13 citations · 54 across the 40 of their papers we have counts for
10 papers · 1 filter
On the exact quantum chromatic number of generalized Johnson graphs
Gaojun Luo, Xiwang Cao, Shitao Li +1
The quantum chromatic number is a fundamental parameter in the study of nonlocal games, capturing the extent to which entanglement can improve performance in distributed tasks. In…
Uniform mixing and -uniform mixing on cycles
Xiwang Cao, Cuiwen Zhu
We study continuous-time quantum walks on cycles. We prove two complementary results. Firstly, the cycle does not admit uniform mixing at any time. Using the similar idea and…
Perfect state transfer in Grover walks on dihedral Cayley graphs
Koushik Bhakta, Bikash Bhattacharjya, Xiwang Cao
The paper investigates perfect state transfer (PST) in Grover walks on Cayley graphs over the dihedral group . The Grover walk is a discrete-time quantum walk widely studied i…
On the quantum chromatic number of Hamming and generalized Hadamard graphs
Xiwang Cao, Keqin Feng, Hexiang Huang +2
As a fundamental metric for quantifying quantum advantage in non-local games, the quantum chromatic number reveals the power of entanglement in distributed tasks. In this paper, we…
Quantum chromatic numbers of some graphs in Hamming schemes
Xiwang Cao, Keqin Feng, Ying-Ying Tan
The study of quantum chromatic numbers of graphs is a hot research topic in recent years. However, the infinite family of graphs with known quantum chromatic numbers are rare, as f…
Fractional revival on abelian Cayley graphs
Xiwang Cao, Gaojun Luo
Fractional revival, known as a quantum transport phenomenon, is essential for entanglement generation in quantum spin networks. The concept of fractional revival is a generalizatio…