Collective behavior of oscillating electric dipoles

Area of Science:

• Physics of complex systems
• Biophysics
• Computational modeling

Background:

• Biomolecules possess intrinsic frequencies and can be modeled as electric dipoles.
• Interactions between biomolecules can be influenced by their spatial arrangement and external energy sources.

Purpose of the Study:

• To investigate the collective dynamics of biomolecules modeled as electric dipoles.
• To explore the emergence of synchronized behavior and its dependence on molecular proximity and external driving forces.

Main Methods:

• Simulating a population of identical biomolecules with random orientations and positions.
• Modeling biomolecular coupling via dipolar interactions and external energy supply.
• Analyzing the power spectrum of the total dipole moment to identify collective modes.

Main Results:

• A collective mode emerges as the average distance between biomolecules decreases.
• This collective mode is characterized by coherent vibrations at frequencies higher than individual molecular frequencies.
• Partial cluster synchronization of biomolecules is observed.

Conclusions:

• Decreasing intermolecular distance can lead to emergent collective behavior in biomolecules.
• Coherent oscillations and partial synchronization indicate a macroscopic mode driven by intermolecular electrodynamic interactions.
• Experimental verification through spectroscopic investigations can validate the biological relevance of these findings.