Leveraging quantum properties

The researchers created a module with four qubits to accomplish this.Quantum information is stored and processed by qubits, which are the building blocks of quantum computers.However, photon emitters can also be made with qubits.

When energy is added to a qubit, the qubit becomes excited, and when it stops being excited, the qubit will release the energy as a photon.However, directionality cannot be guaranteed by connecting just one qubit to a waveguide.

A photon is produced by a single qubit, but the direction in which it travels is completely random.The researchers use two qubits and a property known as quantum interference to ensure that the emitted photon travels in the correct direction in order to circumvent this issue.