Student engineers an interaction between two qubits using photons
In the world of quantum computing, interaction is everything. For computers to work at all, bits — the ones and zeros that make up digital information — must be able to interact and hand off data for processing. The same goes for the quantum bits, or qubits, that make up quantum computers. But that interaction creates a problem — in any system in which qubits interact with each other, they also tend to want to interact with their environment, resulting in qubits that quickly lose their quantum nature. To get around the problem, Graduate School of Arts and Sciences Ph.D. student Ruffin Evans turned to particles mostly known for their lack of interactions — photons. Related Researchers create quantum calculator New system could shed light on a host of complex processes Quantum computing, no cooling required Harvard researchers create room-temperature quantum bits that store data for nearly two seconds Seeing light in...