COMPUTER SIMULATION OF THE WORKING CYCLE OF A QUANTUM CONTROLLED-NOT GATE WITH TWO COUPLED QUANTUM DOTS
S. Moskal, S. Bednarek, Janusz Adamowski
Abstract: We discuss a possible realization of a quantum controlled-NOT gate with the use of two coupled quantum dots. Transitions between quantum states of a computational basis are driven by the microwave pi-pulse. The parameters of the proposed nanodevice have been optimized in order to make the operation cycle of the gate as short as possible. Numerical solutions of the time-dependent Schrödinger equation allow us to simulate transitions between the quantum states which correspond to the subsequent stages of the gate’s operation. The performed time-dependent simulations are a test of realizability of the quantum controlled-NOT gate in the nanodevice.
TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk•Jan 1, 2004•0 citations