Non-Hermitian topological systems exhibit a range of unique phenomena that are absent in their Hermitian counterparts.

Multifrequency electron paramagnetic resonance spectroscopy on oriented single crystals of magnetically dilute Gd(III) ions in Gd0.004Y0.996(trensal) is used to determine the Hamiltonian parameters of ...

Ask the publishers to restore access to 500,000+ books ... Orbital velocity in the frame of a hovering observer -- 2.3.12. Energy in the last stable orbit -- 2.4. Orbits of light rays ... Negative ...

In this article, we propose a method based on the aperture antennas theory to understand the limitations of orbital angular momentum (OAM) antennas in far-field links. Additional insight is also given ...

In this paper, a multifunctional scattering antenna array has been proposed to generate orbital angular momentum (OAM) vortex scattering wave and meanwhile reduce antenna radar cross section (RCS).