Spring 2021

Vikesh Siddhu (Carnegie Mellon University)

Vikesh Siddhu
Thursday, February 11, 2021 - 4:00pm

Entanglement lies at the root of quantum theory. It is a remarkable resource that is generally believed to diminish when entangled systems interact with their environment. On the contrary, we find that engaging a system with its environment increases its ability to retain entanglement. The maximum rate of retaining entanglement is given by the quantum channel capacity. We counter-intuitively boost the quantum capacity of a channel by allowing it to leak almost all quantum information to...