Volume-Energy Correlations in the Slow Degrees of Freedom of Computer-Simulated Phospholipid Membranes

摘要

Molecular dynamics simulations of phospholipid membranes reveals striking correlations between equilibrium fluctuations of volume and energy on the nanosecond time-scale. Volume-energy correlations have previously been observed experimentally at the phase transition between the L phase and the L phase, but not in the fluid L phase. The correlations are investigated in four membranes, with correlation coefficients ranging between 0.81 and 0.89. An experimentally single parameter test is proposed.