Researchers at Technical University of Denmark describe how they have created a ‘carpet‘ of thousands of quantum-mechanically entangled light pulses at room temperature . The discovery has the potential to pave the way for more powerful quantum computers.
The team managed to create a network of 30,000 entangled pulses of light arranged in a two-dimensional lattice distributed in space and time, a cluster state. This cluster state is a potential resource for creating an optical quantum computer, with the long coherence time of the laser light. This approach is an interesting alternative to the more widespread superconducting technologies, as everything takes place at room temperature, therefore not requiring costly and advanced refrigeration technology. (ScienceDaily)