Quantum computing, confronting challenges in precisely controlling these gates due to quantum gates being prone to errors caused by external interference. Our study scrutinises the state evolution dynamics of a single superconducting tunable symmetric transmon qubit under ideal conditions, aiming to provide insights for effective quantum gates’ control. Methodologically, our project is rooted in computational analysis with experimental data from the NTU lab. Python libraries are used to analyse the given data. Our result shows that the qubit exhibits a sinusoidal behaviour between its 2 states with a high average R-squared value (0.97245). This concludes that qubits behave predictably under a steady and ideal microwave field, reducing quantum gate errors and obtaining high quantum fidelity by controlling the pulse time of microwave pulses. Hence, more reliable manipulation of qubit state and accurate quantum operations are attainable.