Conversions of Quantum Dynamics Trajectory into Audio files
An alternative way to perceive quantum dynamics simulations is
generation of sound-based density matrix oscillations of populations of
excited states (implemented in the “qd” module). This may be of help
for outreach activities and for visually impaired users.PyAudio 33 and SciPy 34libraries are used. The user specifies a particular excited state. Then,
excited state population changes along the trajectory are automatically
slowed down to the audible frequency range (20- 20,000 Hz). For example,
a trajectory of 50 ps is slowed down by a factor of
2x1010 and converted into 1 s of a sound track.
Moreover, nearly resonant energy levels of pigments are audibly
distinguishable as they lead to low frequency beats (See supporting
information for samples.)