In this work, we develop a system plus environment approach for interacting chiral molecules under a quantum-classical description of the spin-spin model using a Caldeira-Leggett-like coupling. After presenting the interacting model, we show that a long-ranged parity-nonconserving interaction, encoded within a nonlinear Schrödinger equation, produces an energy difference between the two enantiomers of the central chiral molecule when it interacts with a chiral environment. Three examples of such interactions are considered, with particular focus on $Z^0$-photon vacuum polarization. Finally, we reveal a chirality transmission effect phenomenon, where the time-averaged population difference of the central molecule is amplified when the chiral asymmetry of the environment is considered.

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• Open quantum systems