2016/05/31 by Yi-Hsieh Wang, Ted Jacobson, Mark Edwards +1 · 40 citations
Engineering · Physics and Astronomy · #Astronomy #Black hole (networking) #Bose–Einstein condensate #Bow wave #Experimental and Theoretical Physics Studies #Gravitational wave #Hawking radiation #Horizon #Micro black hole #Monochromatic color #Optics #Physics #Plasma #Quantum Electrodynamics and Casimir Effect #Quantum electrodynamics #Quantum mechanics #Radiation #Sonic black hole #Thermal Radiation and Cooling Technologies #White hole #cond-mat.quant-gas #gr-qc #hep-th
paper · pdf · doi:10.1103/physreva.96.023616
published in Physical Review A 96(2) (American Physical Society) · 24 pages; 19 figures
openalex publication_date 2017/08/17 · arxiv created 2017/08/19 · arxiv updated 2017/08/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We model a sonic black-hole analog in a quasi-one-dimensional Bose-Einstein condensate, using a Gross-Pitaevskii equation matching the configuration of a recent experiment by Steinhauer [Nat. Phys. 10, 864 (2014)]. The model agrees well with important features of the experimental observations, demonstrating their hydrodynamic nature. We find that a zero-frequency bow wave is generated at the inner (white-hole) horizon, which grows in proportion to the square of the background condensate density. The relative motion of the black- and white-hole horizons produces a Doppler shift of the bow wave at the black hole, where it stimulates the emission of monochromatic Hawking radiation. The mechanism is confirmed using temporal and spatial windowed Fourier spectra of the condensate. Mean field behavior similar to that in the experiment can thus be fully explained without the presence of self-amplifying Hawking radiation.