Amide-I Vibrational Entanglement for a 2-State Crossing Point

Vibrational Manifolds of the Amide I band in both crystalline analogs and protein films show a curious sharp isosbestic point in absorbance as a function of temperature, indicating that teh amide-I decolazied system can exsist in 2 discrete states. Narrow frequency 4-wave mixing experiments at the isosbestic point indicate extremely long dephasing times, suggesting that when the system is excited precisely at the isosbestic point it exists as a quantum entangled superposition of 2 discrete states of extreme isolation from the environment.