In quantum physics, entangled photons are the cornerstone of much cutting-edge technology research, including quantum communications, computing, and encryption. Now an international team of researchers claims to have incorporated a range of quantum technologies on a single integrated chip that is compatible with existing fiber and semiconductor applications, and may soon provide the means to build quantum circuits directly into laptops and cell phones.

Using a bevy of quantum electronic components tested and proven in recent research (including a type of micro-ring resonator and a version of a quantum frequency comb necessary for hyperentanglement and the generation of multiphoton entangled quantum bit, or qubit, states), the team of researchers has achieved a new record in the complexity and amount of entangled photons generated on a single chip.