New dimensions of quantum information added through hyperentanglement

Using a technique known as hyperentanglement, researchers claim to have increased the quantum-encoded data carrying capacity of photons by more than 30 times In quantum cryptography, encoding entangled photons with particular spin states is a technique that ensures data transmitted over fiber networks arrives at its destination without being intercepted or changed. However, as each entangled pair is usually only capable of being encoded with one state (generally the direction of its polarization), the amount of data carried is limited to just one quantum bit per photon. To address this limitation, researchers have now devised a way to "hyperentangle" photons that they say can increase the amount of data carried by a photon pair by as much as 32 times. .. Continue Reading New dimensions of quantum information added through hyperentanglement Section: Science Tags: Related Articles: