News

The official inauguration of the Ancienne Ecole de Médecine, took place on the 27th of September marking the return of the Department of Applied Physics to this landmark building in Geneva.

The Geneva Quantum Centre is a brand new initiative, bringing together all aspects of quantum science and technology at the University of Geneva.

The Geneva Quantum Centre held its first event with a small symposium at the Campus biotech. This kickoff event brought together for the first time all the researchers from the university involved in the centre.

Our recent demonstration of local and scalable detection of genuine multipartite single-photon path entanglement has been published in Quantum. We construct a scalable entanglement witness that can be implemented with local measurements only, and experimentally demonstrate its applicability on an 8-partite single-photon path-entangled state.

The INSPIRE Potentials QSIT Master Internship Award was awarded to Hanan Jaffal by NCCR QSIT. The award aims to encourage excellent women students to carry out their Master's thesis in a laboratory belonging to the NCCR QSIT network, so aiming to increase the number of women researchers in areas such as single photon detectors and other quantum technologies.

Our new results are now out in Nature! We demonstrate a new system based on the concept of “zero-knowledge proofs”, the security of which is based on the physical principle of relativity, that allows for secure data transfer.

Our results from recent experiments on the limits of integrating quantum key distribution (QKD) into existing classical networks have been published in Applied Physics Letters! QKD has already become commercially available recently, however, it is still a challenge to integrate QKD into existing classical networks due to noise introduced by the other signals. In our article we studied how a state-of-the art QKD system can be combined into an existing network.

The QTech group and the whole Department of Applied Physics moved out of our original labs back in 2011. We now have the first tables moved in to the new labs and restored "ancienne école de médecine".

The first entangled two-photon paper from our group is out! In this paper, we study the influence of different degrees of entanglement freedom on the entangled two-photon absorption-induced fluorescence rate of Rhodamine 6G, allowing nonlinear microscopy to be performed in a more efficient way.