Monthly Archives: July 2010

Single-photon pair sources based on the nonlinear process of spontaneous parametric downconversion are still a relatively young development. They are however probably one of the most successful tools of modern experimental science in terms of the massive impact they had on the field of quantum information processing. They provided the first bright source of  entangled […]

We have a new paper, ‘Quantum entanglement distribution with 810 nm photons through telecom fibers‘, in Applied Physics Letters as of today (also available on the arXiv here). The experiment has been done in Thomas Jennwein’s group at IQC in Canada and demonstrates that entangled photons at 810 nm can be transmitted through 1550 nm, […]

QCMC is over and the physics entourage has moved on to the ICAP conference in Cairns or back home. Watching all those talks has prompted me to share my thoughts on chairing a conference session. Here they are: 1. Your Speakers The job of a session chair is really not that hard. It therefore always […]

In 5 days the QCMC 2010 is taking off here in Brisbane. We’re looking forward to one week of exciting Science and free coffee.

Th French magazine “Pour la Science” has just reprinted the 2008 Seed magazine article “The Reality Tests” on our Vienna Leggett inequality experiments. The original experiment on a violation of the Leggett inequality by Simon Groeblacher and colleagues garnered a lot of attention. My modest contribution was to perform more conclusive measurements for an inequality […]