1998/11/04 by Ted Jacobson, T. A. Jacobson, G. E. Volovik · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Quantum Electrodynamics and Casimir Effect #Quantum, superfluid, helium dynamics #cond-mat #gr-qc #hep-th
paper · pdf · doi:10.1134/1.567808
published as Pisma Zh.Eksp.Teor.Fiz. 68 (1998) 833-838; JETP Lett. 68 (1998) 874-880 · revtex file, 4 pages, 2 figures, submitted to JETP Lett
arxiv created 1998/11/04 · openalex publication_date 1998/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
An event horizon for “relativistic” fermionic quasiparticles can be constructed in a thin film of superfluid 3 He-A. The quasiparticles see an effective “gravitational” field which is induced by a topological soliton of the order parameter. Within the soliton the “speed of light” crosses zero and changes sign. When the soliton moves, two planar event horizons (black hole and white hole) appear, with a curvature singularity between them. Aside from the singularity, the effective spacetime is incomplete at future and past boundaries, but the quasiparticles cannot escape there because the nonrelativistic corrections become important as the blueshift grows, yielding “superluminal” trajectories. The question of Hawking radiation from the moving soliton is discussed but not resolved.