Peter's current research interests:

• Electromagnetically induced tranparency - also known as EIT, it represents a novel way to achieve enormous nonlinearities without absorption through quantum interference effects. This research received an enormous amount of attention around 1999 when Lene Hau used it to slow light down to a crawl and even stop it and revive it later. Our interests lies in using a single EIT atom to create ultra-low power (even single photon) optical transistors (see the