A Theoretical Framework for Quantum Bioacoustic Information Encoding in Abyssal Piezophiles via Topological Phononic Structures

This theoretical investigation proposes Topological Bioacoustic Memory (TBM), a novel framework hypothesizing that abyssal piezophiles exploit quantum-coherent acoustic vibrations within protein-hydration lattices to encode biological information under extreme hydrostatic pressures (100 MPa). Employing a rigorous suite of computational methodologies—density functional perturbation theory (DFPT), molecular dynamics (MD), and quantum mechanics/molecular mechanics (QM/MM) simulations—we meticulously explore the emergence of phononic topological insulators in the mechanosensitive channel of large conductance (MscL) from *Moritella yayanosii*. These structures are predicted to sustain a robust phononic bandgap of 0.50 ± 0.01 THz, enabling a 16-symbol Xenobiological Acoustic Alphabet (XAA) based on frequency-phase encoding, with a theoretical volumetric information capacity of 10^18 bit/cm³. We hypothesize that the hadal zone’s high-pressure environment suppresses thermal decoherence, extending quantum coherence times (T₂) beyond 100 ps, a timescale amenable to biological information processing. Piezoelectric feedback from membrane lipids is posited to actively stabilize and error-correct these vibrational quantum states, with encoding and decoding potentially mediated by protein-lipid interactions. This computational proof-of-concept, pending experimental validation, provides a comprehensive theoretical foundation and a detailed experimental roadmap for testing its core hypotheses, offering a paradigm shift in understanding extremophile adaptation and quantum biology.