Triadic Phase–Guided Quantum Tunneling at Low Temperatures

Abstract Quantum tunneling is conventionally described through exponential decay of the wavefunction amplitude inside a potential barrier. In this work, a complementary geometrical interpretation is proposed in which tunneling-like transmission arises from discrete phase coordination within a triadic lattice structure. Each lattice unit carries a fixed internal phase fragment of 120°, and effective transmission across a barrier becomes possible when successive triads collectively complete closed 360° phase cycles. At very low temperatures, where thermal decoherence is strongly suppressed, phase coherence can persist across barrier regions without requiring continuous exponential attenuation. From this perspective, tunneling probability reflects the availability of coherent phase-completing pathways rather than purely amplitude leakage. The framework does not alter standard quantum predictions, but offers a geometrically intuitive interpretation that may be particularly relevant for low-temperature tunneling and superconducting junction phenomena.