Breaking a Superfluid Harmonic Dam: Observation and Theory of Riemann Invariants and Accelerating Sonic Horizons.
Sharan S, Sorribes JG, Sprenger P, Hoefer MA, Engels P, Ilan B, Mossman ME. Breaking a Superfluid Harmonic Dam: Observation and Theory of Riemann Invariants and Accelerating Sonic Horizons. Phys Rev Lett. 2025 Nov 07; 135(19):193402.