Frustration Protection of Exciton-Vibration Thermodynamics and Transfer

Recent work reported unusual effects in the time evolution of some cyclic exciton-vibration Hamiltonians, which stems from electronic frustration and the accompanying ground state degeneracy. Here we show that the thermodynamic and dynamical properties of electronically frustrated systems are insensitive to variations of temperature and exciton-vibration coupling strength and that the lack of sensitivity correlates well with a quantitative measure of frustration. Thus, electronic frustration offers significant protection against the effects of large molecular environments.