Visualizing the Invisible Qubit Phase
Explore the concept of qubit phase and how it influences quantum states. Understand how to visualize phases using simulators and mathematical descriptions on the Bloch sphere. This lesson helps you grasp the significance of positive and negative amplitudes, rotation gates, and how phase differences impact measurement probabilities in quantum computing.
We'll cover the following...
We'll cover the following...
The phase of a qubit is the decisive factor when we work with amplitudes. Even though we can’t measure the phase directly, it’s not invisible. We can use our simulator to visualize it. We can also use math to describe it precisely.
States with positive amplitudes
When we look at the Bloch sphere, states with a positive amplitude reside at the front-side of the X-axes and Z-axes.
States with negative amplitudes
By contrast, states with a negative ...