Objective Optical frequency combs are extraordinary tools for metrology which have been recently crowned by a Nobel prize: they have replaced complicated frequency chains to perform direct frequency and time measurements with much higher accuracy, which is now getting close to the quantum limit. However, quantum aspects of measurements performed with these sources have not yet been studied. This is the subject of this proposal. Based on model experiments such as space-time positioning, dispersion, velocity or frequency measurements, we propose to assess and reach experimentally ultimate limits derived from information theory in presence of quantum noise. We also propose to go beyond these limits using non-classical states. More specifically, we propose to fulfil the following objectives : " Objective 1 : achieve the best absolute space-time positioning sensitivity ever using quantum optics techniques applied to frequency combs. " Objective 2 : apply those techniques to other high sensitivity measurement such as dispersion, velocity or frequency metrology. " Objective 3 : explore fundamental quantum physics effects in the lab with quantum frequency combs. These tasks will be performed by developing a quantum frequency comb factory, based on mode locked laser sources and parametric oscillators, whose conception is a research line in itself, and that would also be used for new quantum states generation such as macroscopic entanglement and multimode states. Fields of science natural sciencesphysical sciencesquantum physicsquantum opticsnatural sciencesphysical sciencesopticslaser physics Keywords entanglement frequency combs non-classical states ranging Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) ERC-SG-PE2 - ERC Starting Grant - Fundamental constituents of matter Call for proposal ERC-2009-StG See other projects for this call Funding Scheme ERC-SG - ERC Starting Grant Host institution UNIVERSITE PIERRE ET MARIE CURIE - PARIS 6 EU contribution € 1 126 000,00 Address Place Jussieu 4 75252 PARIS France See on map Activity type Higher or Secondary Education Establishments Administrative Contact Anais Desclos (Ms.) Principal investigator Nicolas Treps (Dr.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data Beneficiaries (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all UNIVERSITE PIERRE ET MARIE CURIE - PARIS 6 France EU contribution € 1 126 000,00 Address Place Jussieu 4 75252 PARIS See on map Activity type Higher or Secondary Education Establishments Administrative Contact Anais Desclos (Ms.) Principal investigator Nicolas Treps (Dr.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data