2013/11/30 by Paul Kinsler, Martin W. McCall · 22 citations
Computer Science · Engineering · Materials Science · Mathematics · Physics and Astronomy · #Acoustics #Cellular Automata and Applications #Chaos-based Image/Signal Encryption #Cloaking #Computer science #Electromagnetism #Engineering #Event (particle physics) #Geometry #Mathematical analysis #Mathematics #Metamaterial #Metamaterials and Metasurfaces Applications #Optics #Physics #Plane (geometry) #Plane wave #Quantum mechanics #Scalar (mathematics) #Space (punctuation) #Space time #Spacetime #Theoretical physics #Transformation (genetics) #Transformation optics #physics.optics
paper · pdf · doi:10.1103/physreva.89.063818
published in Physical Review A 89(6) (American Physical Society) · v4 (closer to published version), v3, v2 (misc updates/fixes and better notation)
openalex publication_date 2014/06/20 · arxiv created 2015/04/24 · arxiv updated 2015/04/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Here we extend the theory of space-time or event cloaking into that based on the carpet or ground-plane reflective surface. Further, by recasting and generalizing a scalar acoustic wave model into a mathematically covariant form, we also show how transformation theories for optics and acoustics can be combined into a single prescription. The single prescription, however, still respects the fundamental differences between electromagnetic and acoustic waves, which then provide us with an existence test for any desired transformation device: Are the required material properties (the required constitutive parameters) physically permitted by the wave theory for which it is being designed? While electromagnetism is a flexible theory permitting almost any transformation-device (T-device) design, we show that the acoustic model used here is more restricted.