Quantum walk;
Perfect state transfer;
Infinite graphs;
INFINITE;
SPECTRA;
D O I:
10.1016/j.laa.2025.02.005
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
Godsil proved that there is no quantum perfect state transfer (between vertex states) on bounded infinite graphs. We show however there exists quantum perfect state transfer in graphs with tails. The main argument used is a decoupling theorem for eventually-free Jacobi matrices (due to Golinskii). Our results rehabilitate the notion of a dark subspace which had been so far viewed in an unflattering light. (c) 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
机构:
Department of Mathematics, Nanjing University of Aeronautics and AstronauticsDepartment of Mathematics, Nanjing University of Aeronautics and Astronautics
Xiwang CAO
Keqin FENG
论文数: 0引用数: 0
h-index: 0
机构:
Department of Mathematical Sciences, Tsinghua UniversityDepartment of Mathematics, Nanjing University of Aeronautics and Astronautics
Keqin FENG
Ying-Ying TAN
论文数: 0引用数: 0
h-index: 0
机构:
School of Mathematics and Physics, Anhui Jianzhu UniversityDepartment of Mathematics, Nanjing University of Aeronautics and Astronautics