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13 papers · 1 filter
Thermal noise can facilitate energy transformation in the presence of entropic barriers
Bao-quan Ai, Hui-zhang Xie, Liang-gang Liu
Efficiency of a Brownian particle moving along the axis of a three-dimensional asymmetric periodic channel is investigated in the presence of a symmetric unbiased force and a load.…
Concurrence and a proper monogamy inequality for arbitrary quantum states
Yong-Cheng Ou, Heng Fan, Shao-Ming Fei
We obtain an analytical lower bound of entanglement quantified by concurrence for arbitrary bipartite quantum states. It is shown that our bound is tight for some mixed states and…
Some symmetry properties of spin currents and spin polarizations in multi-terminal mesoscopic spin-orbit coupled systems
Yongjin Jiang, Liangbin Hu
We study theoretically some symmetry properties of spin currents and spin polarizations in multi-terminal mesoscopic spin-orbit coupled systems. Based on a scattering wave function…
Physical implementation of topologically decoherence-protected superconducting qubits
Zheng-Yuan Xue, Z. D. Wang, Shi-Liang Zhu
We propose a scenario to physically implement a kind of topologically decoherence-protected qubit using superconducting devices coupled to a micro-wave cavity mode with unconventio…
Detecting unambiguously non-Abelian geometric phases with trapped ions
Xin-Ding Zhang, Z. D. Wang, Liang-Bin Hu +2
We propose for the first time an experimentally feasible scheme to disclose the noncommutative effects induced by a light-induced non-Abelian gauge structure with trapped ions. Und…
Current in a three-dimensional periodic tube with unbiased forces
Bao-quan Ai, Liang-gang Liu
Transport of a Brownian particle moving along the axis of a three-dimensional asymmetric periodic tube is investigated in the presence of asymmetric unbiased forces. The reduction…