Physics articles
In this article, we are going to outline how the transmission of qubits happens through the teleportation protocol and direct transmission, and how two types of quantum repeaters, based on entanglement swapping and quantum graph states, can be used to send qubits across long distances.
In this article we will see how polarized monochromatic light can be described as a vector in a 2D space and its interactions with optic elements can be modeled as linear operators. Them we will derive formulas for the most common optic elements present in a laboratory and give an example on how to use them.
In this article we will see how polarized monochromatic light can be described as a vector in a 2D space and its interactions with optic elements can be modeled as linear operators. Them we will derive formulas for the most common optic elements present in a laboratory and give an example on how to use them.
In this article, we are going to talk about density matrices as tools for representing quantum states with more generality than quantum kets, we will outline the main properties of these tools and show how they can be used to represent both pure states and mixed states. Finally we will see how everything works in a practical example.
In this article we will define the Bloch sphere and show how it can be used to easily represent quantum kets and quantum density operators. We will show how this is a tool sufficient to represent both pure and mixed states.
In this article we will see how we can move on the Bloch sphere and how this corresponds to transforming a quibit state. At the end wea general formula for Bloch sphere rotations is derived.