An experiment has discovered that perfect entanglement with a quantum dot is possible – with the right photodetector. Faster detectors with ultra-low timing jitter and dark counts may soon pave the way to practical entanglement applications.
Sandbo Chang
Hemant Katiyar
The Quantum Innovators in science and engineering workshop brings together the most promising young researchers in quantum physics and engineering. Guests are invited for a four-day conference aimed at exploring the frontier of our field.
One-out-of-two (1-2) oblivious transfer is a cryptographic primitive, in which a sender holds two bits, x0 and x1, and a receiver receives one of them, in such a way that the receiver does not know both bits, and the sender does not know which bit the receiver obtained. While information-theoretical security for quantum versions of such protocols is not possible, it is of interest to examine possible security bounds, which previous work has shown to be set at 0.749 in “complete” protocols employing pure symmetric states.
Raymond Laflamme, Department of Physics and Astronomy professor at the Institute for Quantum Computing (IQC) at the University of Waterloo, keeps himself curious by exploring new areas of interest.
We present two concrete examples where the Renyi rather than just the von Neumann entanglement entropy is necessary in order to obtain certain insights into quantum many-body systems.
Erickson Tjoa
Maria Kieferova
Meenu Kumari