Applying the Almheiri–Marolf–Polchinski–Sully (AMPS) argument to sonic horizons, we find post-Page-time unitarity breaks phonon entanglement, creating an acoustic firewall.
Gross–Pitaevskii Acoustic Firewalls Emerge From Vanishing Phonon Entanglement
Applying the Almheiri–Marolf–Polchinski–Sully (AMPS) argument to sonic horizons, we find post-Page-time unitarity breaks phonon entanglement, creating an acoustic firewall.