In this paper, we study the electron transport in the triple quantum rings in the presence of a magnetic flux threaded through each ring. The triple quantum rings is connected to the semi-infinite external electrodes. The Hamiltonian of the system is written by using the tight-binding model and the electron transmission probability is calculated by the Greens function method. The electron current passing the triple quantum rings is calculated in terms of the applied bias voltage. We propose different logic gates such as AND, OR, NOT, XOR, NOR, XNOR and NAND by applying the gate voltages to different atomic sites of the triple rings.

Keywords: Quantum Transport; Triple Quantum Rings; Logic Gates; Greens Function;