Abstract

Design of the NMR quantum computer of 1D spin chains based on 31P@C60-SWCNT as peapods was studied. Electronic structure and magnetic properties of 31P@C60 encapsulating fullerenes within SWCNT as peapods was investigated by quantum chemical calculation. Characterization of chemical shifts of 13C, principle g-tensor and A-tensor of hyperfine structure for phosphorus atom with electronic spin S = 3/2 and nuclear spin I = 1/2 were studied. The excited energy and wavelength at 1512 nm and 728 nm confirmed assignment of the first and second states as van Hove transitions. Molecular design of carbon peapods is important to control quantum spin qubits, splitting by spin-local interaction and dipole-dipole interaction based on p-orbital spin density distribution under hybrization of molecular orbital at excited state and grand state.

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