4 papers
Quantifying nonclassicality in qubit systems via positive operator-valued measures
Abdul Sattar Khan, Mehdi Abdi
We introduce an operational measure of nonclassicality for qubit systems based on the violation of Kolmogorov consistency conditions in sequential measurements. In contrast to prev…
Parametric resonance and nonlinear dynamics in a coupled double-pendulum system
Yusheng Niu, Yixian Liu, Hongyan Fan +2
Nonlinear dynamics plays a significant role in interdisciplinary fields spanning biology, engineering, mathematics, and physics. Under small-amplitude approximations, certain nonli…
Strongly Coupled Continuous Time Crystal
Ximo Wang, Qiwei Han, Zhenqi Bai +2
Time crystals are classified into discrete time crystals and continuous time crystals based on whether they spontaneously break time-translation symmetry. Continuous-time crystals…
Geometric Quantum Gates of Non-closed Paths Under Counterdiabatic Driving
Ximo Wang, Hongyan Fan, Zhengqi Bai +1
Non-adiabatic and non-closed evolutionary paths play a significant role in the fidelity of quantum gates. We propose a high-fidelity quantum control framework based on the quasi-to…