Objective This project aims at exploring the coherence of Josephson crystals (JC) and to apply this coherence for frequency-to-current conversion. A Josephson crystal can be realized by a Josephson junction chain, formed by repeating a single junction or SQUID in space to form a one-dimensional ladder structure. Such a crystal can show a macroscopic coherent behavior due to the coherent superposition of quantum phase-slips (CQPS), ie the winding of 2 of the superconducting phase-difference occurring on single junctions. This project aims to perform a major breakthrough by addressing the coherence of circuits containing a large number of Josephson junctions. In particular this proposal aims, by novel experiments on Josephson junction chains, to understand the crucial questions of external charge dynamics and dissipation that originates from the many-body effects present in these chains. In order to fight against internal dissipation, I propose novel designs of Josephson junction chains with a disordered or fractal pattern. In addition, I propose to do a first systematic study on the external charge dynamics occurring in Josephson junction chains, in particular noise correlations. Finally, I aim to use CQPS in a Josephson crystal to realize a frequency-to-current converter. This coherent JC should, under microwave irradiation of frequency f, exhibit exact current quantization I=2nef in multiples n of the electron charge e. 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-PE3 - ERC Starting Grant - Condensed matter physics Call for proposal ERC-2012-StG_20111012 See other projects for this call Funding Scheme ERC-SG - ERC Starting Grant Host institution UGA-Université Grenoble Alpes EU contribution No data Address 621, AVENUE CENTRALE 38401 SAINT MARTIN D'HERES France See on map Region RUP FR — Régions Ultrapériphériques Françaises Guadeloupe Guadeloupe Activity type Higher or Secondary Education Establishments Administrative Contact Aurélie Diringer-Dagorne (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data Beneficiaries (2) Sort alphabetically Sort by EU Contribution Expand all Collapse all UGA-Université Grenoble Alpes France EU contribution No data Address 621, AVENUE CENTRALE 38401 SAINT MARTIN D'HERES See on map Region RUP FR — Régions Ultrapériphériques Françaises Guadeloupe Guadeloupe Activity type Higher or Secondary Education Establishments Administrative Contact Aurélie Diringer-Dagorne (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data UNIVERSITE JOSEPH FOURIER GRENOBLE 1 Participation ended France EU contribution € 1 466 109,60 Address Avenue Centrale, Domaine Universitaire 621 38041 GRENOBLE See on map Activity type Higher or Secondary Education Establishments Administrative Contact Yann Le Roux (Mr.) Links Contact the organisation Opens in new window Website Opens in new window Total cost No data