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79 papers · 1 filter
Experimental parity-time symmetry quantum walks on a directed graph
Tong Wu, J. A. Izaac, Zi-Xi Li +5
Quantum walks (QW) are of crucial importance in the development of quantum information processing algorithms. Recently, several quantum algorithms have been proposed to implement n…
Phase-controllable growth of ultrathin 2D magnetic FeTe crystals
Lixing Kang, Chen Ye, Xiaoxu Zhao +27
Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronics devices. However, the synthesis of 2D magn…
Integration of the Berry curvature on a qubit state manifold by coupling to a quantum meter system
Peng Xu, Shi-Liang Zhu, Klaus Mølmer +1
We present a scheme that allows integration of the Berry curvature and thus determination of the Chern number of a qubit eigenstate manifold. Our proposal continuously couples the…
Heterogeneously integrated, superconducting silicon-photonic platform for measurement-device-independent quantum key distribution
Xiaodong Zheng, Peiyu Zhang, Renyou Ge +10
Integrated photonics provides a route both to miniaturize quantum key distribution (QKD) devices and to enhance their performance. A key element for achieving discrete-variable QKD…
Geometry induced quantum Hall effect and Hall viscosity
Yong-Long Wang, Hong-Shi Zong, Hui Liu +1
For a particle confined to the two-dimensional helical surface embedded in four-dimensional (4D) Euclidean space, the effective Hamiltonian is deduced in the thin-layer quantizatio…
Higher-order Dirac fermions in three dimensions
Weikang Wu, Zhi-Ming Yu, Xiaoting Zhou +2
Relativistic massless Weyl and Dirac fermions exhibit the isotropic and linear dispersion relations to preserve the Poincaré symmetry, the most fundamental symmetry in high energy…