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5 papers · 2 filters
Photon-Dressed Bloch-Siegert Shift in an Ultrastrongly Coupled Circuit Quantum Electrodynamical System
Shuai-Peng Wang, Guo-Qiang Zhang, Yimin Wang +5
A cavity quantum electrodynamical (QED) system beyond the strong-coupling regime is expected to exhibit intriguing quantum phenomena. Here we report a direct measurement of the pho…
Anomalies of weight-based coherence measure and mixed maximally coherent states
Yao Yao, Dong Li, C. P. Sun
As an analogy of best separable approximation (BSA) in the framework of entanglement theory, here we concentrate on the notion of best incoherent approximation, with application to…
Non-Markovian effect on quantum optical metrology under dissipative environment
Kai Bai, Hong-Gang Luo, Wenxian Zhang +1
Quantum metrology utilizes quantum effects to reach higher precision measurements of physical quantities compared with their classical counterparts. However the ubiquitous decohere…
Quantifying Algebraic Asymmetry of Hamiltonian Systems
Hui-Hui Qin, Shao-Ming Fei, Chang-Pu Sun
The symmetries play important roles in physical systems. We study the symmetries of a Hamiltonian system by investigating the asymmetry of the Hamiltonian with respect to certain a…
Quantifying quantum non-Markovianity based on quantum coherence via skew information
Lian-He Shao, Yu-Ran Zhang, Yu Luo +2
Based on the nonincreasing property of quantum coherence via skew information under incoherent completely positive and trace-preserving maps, we propose a non-Markovianity measure…