In the world of quantum science, Alice and Bob have been talking to one another for years. Charlie joined the conversation a few years ago, but now by enforcing the space-like separation of the three parties, scientists have demonstrated full quantum nonlocality with more than two entangled photons.
The Institute for Quantum Computing (IQC) held its first Quantum Frontiers Distinguished Lecture of the year on Thursday, March 20. John R. Kirtley, physical research science associate at the Center for Probing the Nanoscale in the Department of Applied Physics at Stanford University, was the guest speaker at this event.
The way we secure digital transactions could soon change. An international team has demonstrated a form of quantum cryptography that can protect people doing business with others they may not know or trust – a situation encountered often on the internet and in everyday life, for example at a bank’s ATM.