2025/12/26 by L. Inácio, A. Kurumbail, Inácio, L. +7
Biochemistry, Genetics and Molecular Biology · Chemistry · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Chemical and Physical Studies #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Photochemistry and Electron Transfer Studies #Quantum Physics (quant-ph) #Spectroscopy and Quantum Chemical Studies
paper · doi:10.48550/arxiv.2512.22041
openalex publication_date 2025/12/26 · openalex created_date 2025/12/30 · openalex updated_date 2026/07/28
We commence our study with review of dispersion interactions in electrolytes. We then reflect on how background media change atom-atom excited-state systems. To highlight the impact of nonlocal media, such as salt solutions, we predict that a new contribution to the resonance interaction energy emerges in a form ∝ e^-κ\rm D ρ/ρ. Here κ\rm D is the Debye length and ρ is the distance between the atoms. This contribution vanishes at zero temperature, where a new term proportional to 1/ρ4 (similar to free space) occurs. This new term is dampened by the electrolyte at large distances, causing it to decrease much faster, proportional to 1/ρ7. The long-range electrolyte-induced resonance interaction at finite temperature may, in addition to the dominating van der Waals attraction (which goes as 1/ρ6), take part in the molecular formation of biological fluids.