23 citations · 55 across the 8 of their papers we have counts for
8 papers · 1 filter
Optimal convex approximation of quantum channels based on -affinity
Liqiang Zhang, Chengling Fu, Liuyong Cheng +2
Determining the minimal distance between a target channel and a convex hull of predefined set of implementable channels is a fundamental problem in quantum resource theory, and pro…
Dissipative Quantum Battery in the Ultrastrong Coupling Regime Between Two Oscillators
Yu-qiang Liu, Yi-jia Yang, Zheng Liu +6
In this work, we propose an open quantum battery that stores and releases energy by employing a two-mode ultrastrongly coupled bosonic system, with one mode (the charger) coupled t…
Dual effects of Lamb Shift in Quantum Thermodynamical Systems
Zi-chen Zhang, Chang-shui Yu
The Lamb shift as an additional energy correction induced by environments usually has a marginal contribution and hence is neglected. We demonstrate that the Lamb shift, which modi…
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…
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…
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…
Tight and attainable quantum speed limit for open systems
Zi-yi Mai, Chang-shui Yu
We develop an intuitive geometric picture of quantum states, define a particular state distance, and derive a quantum speed limit (QSL) for open systems. Our QSL is attainable beca…
Direct Measure of Quantum Correlation
Chang-shui Yu, Heng Fan
The quantumness of the correlation known as quantum correlation is usually measured by quantum discord. So far various quantum discords can be roughly understood as indirect measur…