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27 papers · 1 filter
Discrete breathers assist energy transfer to ac driven nonlinear chains
Danial Saadatmand, Daxing Xiong, Vitaly A. Kuzkin +3
One-dimensional chain of pointwise particles harmonically coupled with nearest neighbors and placed in six-order polynomial on-site potentials is considered. Power of the energy so…
Observing Golden Mean Universality Class in the Scaling of Thermal Transport
Daxing Xiong
We address the issue of whether the golden mean universality class, as predicted by several theoretical models, can be observed in the…
Continuous-variable geometric phase and its manipulation for quantum computation in a superconducting circuit
Chao Song, Shi-Biao Zheng, Pengfei Zhang +10
Geometric phase, associated with holonomy transformation in quantum state space, is an important quantum-mechanical effect. Besides fundamental interest, this effect has practical…
Coherent control in quantum open systems: An approach for accelerating dissipation-based quantum state generation
Ye-Hong Chen, Zhi-Cheng Shi, Jie Song +2
In this paper, we propose an approach to accelerate the dissipation dynamics for quantum state generation with Lyapunov control. The strategy is to add target-state-related coheren…
Improving shortcuts to non-Hermitian adiabaticity for fast population transfer in open quantum systems
Ye-Hong Chen, Qi-Cheng Wu, Bi-Hua Huang +3
It is still a challenge to experimentally realize shortcuts to adiabaticity (STA) for a non-Hermitian quantum system since a non-Hermitian quantum system's counterdiabatic driving…
The first gap for total curvatures of planar graphs with nonnegative curvature
Bobo Hua, Yanhui Su
We prove that the total curvature of a planar graph with nonnegative combinatorial curvature is at least if it is positive. Moreover, we classify the metric structur…