Quasiparticles in motion: illustration of ghost polaritons in a calcite crystal being “launched” to record distances by a gold microdisk. (Courtesy: HUST) The existence of ghost hyperbolic surface ...

It is shown that every proper intersection point of two closed geodesics on an orientable hyperbolic surface is either a simultaneous double point of two closed geodesics of equal length or a ...

Atomic interactions in everyday solids and liquids are so complex that some of these materials’ properties continue to elude physicists’ understanding. Solving the problems mathematically is beyond ...

Optical Surfaces Ltd is a leading manufacturer of high precision hyperbolic mirrors that are used in satellite-based telescopes to collect and focus light enabling high-resolution remote observation ...