Many of us in the Waterloo community are watching with great concern the developments in Hawaii around the construction of the Thirty Meter Telescope (TMT).
The Waterloo physics community has been in dialogue over the last several days with colleagues from around the world. We have heard views expressed on our own campus from students and faculty members. Though many of us have deeply held beliefs about what should happen next, it is our very strong view that it is primarily up to Hawaiians to decide how - or if - they will “share the Mauna”, as eloquently expressed by master navigator Kalepa Baybayan in July.
A team led by Waterloo physicists has successfully detected the presence of single photons while preserving their quantum states.
Photons in quantum states are used as carriers of information and sent over long distance, for applications like quantum cryptography and teleportation. However, any transmission is inherently lossy – only 50 per cent of photons arrive after travelling 15 kilometres through optical fibre – making it very difficult to know when an individual photon is arriving.