Quantum steering allows two parties to verify shared entanglement even if one measurement device is untrusted. A conclusive demonstration of steering through the violation of a steering inequality is ...

Quantum steering describes the fact that in certain quantum states of systems consisting of two particles, a measurement on the first particle allows one to make more precise predictions about ...

Quantum steering – a strange, non-local phenomenon similar to quantum entanglement – cannot be perfectly replicated by any joint operation between the system being steered and an external system. This ...

New research may lead to greatly improved security of information transfer over the internet. Physicists have demonstrated the potential for 'quantum steering' to be used to enhance data security over ...

Quantum systems consisting of several particles can be used to measure magnetic or electric fields more precisely. A young physicist at the University of Basel has now proposed a new scheme for such ...