The outcome of the density functional theory (DFT) technique within the supercell's framework of La2CuO4 (LCO) are reported. We evaluatedlocal dipolar fields of muon's position inside LCO assuming dipolar interaction is occurred by varying the supercell's size. We found out that the field on proposed muon's trapping positions were known to be not affected so much by supercell's size and still fairly larger than the experimental data. Our results suggest that the inclusion of quantum effects of implanted muon and the electronic spin are required to explain experimental data.

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