3 papers
quant-ph2025
Attainable quantum speed limit for N-dimensional quantum systems
Zi-yi Mai, Chang-shui Yu
Quantum speed limit (QSL) is a fundamental concept in quantum mechanics and provides a lower bound on the evolution time. The attainability of QSL, greatly depending on the underst…
quant-ph2025
Family of attainable geometric quantum speed limits
Zi-yi Mai, Zheng Liu, Chang-shui Yu
We propose a quantum state distance and develop a family of geometrical quantum speed limits (QSLs) for open and closed systems. The QSL time includes an alternative function by wh…
quant-ph2024
Quantum Speed Limit in Terms of Coherence Variations
Zi-yi Mai, CHang-shui Yu
Coherence is the most fundamental quantum resource in quantum information processing. How fast a physical system gets coherence or decoherence is a critical ingredient. We present…