Development of porphyrin-based two qubits quantum logic gates

In this PhD Thesis, we show the potential of paramagnetic porphyrin compounds in quantum information research. We synthesized homometallic meso-meso linked [VO]2+ porphyrins and heterometallic [VO]2+-Cu2+ porphyrin dimers and solved their crystal structure using X-ray diffractometry. Electron paramagnetic resonance techniques were used to characterize their static and dynamic magnetic properties. In particular, the vanadyl porphyrin moiety was found to be a crucial building block. The results demonstrate that weakly exchange-coupled porphyrin systems provide the qubit-qubit interaction and the single spin addressability required to implement the controlled-NOT quantum gate.