2000/12/17 by Michael Stone, Stone, Michael · 2 citations
Physics and Astronomy · #Condensed Matter (cond-mat) #Experimental and Theoretical Physics Studies #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #General Relativity and Quantum Cosmology (gr-qc) #Scientific Research and Discoveries #cond-mat #gr-qc #physics.flu-dyn
paper · pdf · doi:10.48550/arxiv.cond-mat/0012316
This is an expanded version of a talk with the same title that was given at the workshop "Analog models of General Relativity". The workshop took place at CBPF (Centro Brasileiro de Pesquisas F{í}sicas), the Brazilian Center for Research in Physics, located in Urca, Rio de Janeiro from 16 to 20th October 2000
arxiv created 2000/12/17 · openalex publication_date 2000/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
I provide a pedagogical introduction to the notion of pseudomomentum for waves in a medium, and show how changes in pseudomomentum may sometimes be used to compute real forces. I then explain how these ideas apply to sound waves in a fluid. When the background fluid is in motion, the conservation laws for pseudomomentum and pseudoenergy are most easily obtained by exploiting the acoustic metric and the formalism of general relativity.