COUPLING OF SUPERCONDUCTIVE DEVICES TO MAGNETIC NANOMATERIALS: A PLATFORM FOR QUANTUM TECHNOLOGIES

Operation co-funded by EU cohesion policy (European Regional Development Fund (ERDF)) under the programme Multi-regional Spain - ERDF (2014ES16RFOP002), managing authority: Subdirección General de Gestión del FEDER, de la Dirección General de Fondos Europeos del Ministerio de Hacienda.. The source names no beneficiary for this operation. Location: Zaragoza Province (NUTS ES243); Spain. Budget: total eligible expenditure EUR 254,100; EU co-financing EUR 127,050 (co-financing rate 50%), as stated by the source. Runs 2019-01-01 to 2022-12-31. Source: Kohesio, EU cohesion policy projects managed by national and regional authorities (not CORDIS). Summary from Kohesio (English machine translation by the source): SUBPROJECT 1 FOCUSES ON THREE MAIN TARGETS THAT CONTRIBUTE TO THE MAIN GOALS OF THE CO-ORDINATED PROPOSAL: (I) DEVELOPMENT OF SUPERCONDUCTING SENSORS (NANO-SQUIDS AND NANO-RESONATORS) (II) THE COLLECTIVE COUPLING, OR SUPERRADIANCE, OF SPIN QUBIT NANO-ENSEMBLES TO SUPERCONDUCTING RESONATORS AND (III) THE APPLICATION OF TOPOLOGICAL MAGNETIC STATES TO QUANTUM TECHNOLOGIES. WE PLAN TO ADAPT HIGH-TC NANO-SQUID MAGNETOMETERS TO OPERATE UNDER BROAD BAND EXCITATIONS (FROM DC UP TO A FEW GHZ) AND VERY SHORT PULSES (DOWN TO 1 NS). THIS WILL ENABLE STUDYING VERY FAST MAGNETIZATION PROCESSES WITH THE EXTREME SENSITIVITY, OF THE ORDER OF A FEW MB, WHICH CHARACTERIZES THESE SENSORS. SUPERCONDUCTING NANO-RESONATORS WILL BE FABRICATED BY REDUCING THE DIAMETER OF THE CENTER TRANSMISSION LINE OF CO-PLANAR ON-CHIP RESONATORS DOWN TO 30-50 NM, USING FOCUSSED ION BEAM NANOLITHOGRAPHY. IN ADDITION, THESE DEVICES FORM THE BASIS FOR THE FABRICATION OF HYBRID RESONATORS, WHICH WILL INCORPORATE MOLECULAR JUNCTIONS DEVELOPPED AS PART OF SUB-PROJECT 2, AND THAT CAN REACH SINGLE-SPIN SENSITIVITY. THE COUPLING OF NANO-ENSEMBLES OF N = 10^2-10^8 SPIN QUBITS (MAINLY FREE-RADICAL NEUTRAL MOLECULES) TO THESE DEVICES WILL ENABLE STUDYING THE CROSS-OVER BETWEEN THE QUANTUM LIMIT, THE TRUE SUPERRADIANT REGIME WHICH HOLDS WHEN N IS LARGER THAN THE NUMBER N OF PHOTONS IN THE CAVITY, TO THE CLASSICAL LIMIT, EQUIVALENT TO THAT FOUND IN CONVENTIONAL ELECTRON PARAMAGNETIC RESONANCE EXPERIMENTS, FOR N < N, AS WELL AS EXPLORING THE COMPETITION BETWEEN SUPERRADIANCE AND SPIN-SPIN CORRELATIONS. THE APPLICATION OF PUMP-PROBE MICROWAVE PULSES PROVIDES A METHOD FOR THE DETERMINATION OF SPIN COHERENCE TIMES IN NANOSCOPIC SAMPLES AND FORMS THE BASIS FOR THE GENERATION AND DETERMINATION OF SPIN SQUEEZING IN THESE SYSTEMS. WE SHALL ALSO EXPLORE SPIN ENSEMBLES INTERACTING WITH MULTIPLE LUMPED-ELEMENT RESONATORS, ALL OF THEM INDUCTIVELY COUPLED TO A COMMON TRANSMISSION LINE IN A CHIP. THIS ALLOWS PERFORMING MAGNETIC [shortened; the full text is on the Kohesio page]

Original source.

Source: Kohesio (EU cohesion policy projects), European Commission, Directorate-General for Regional and Urban Policy (DG REGIO). Retrieved 2026-10-21. Licence: CC0 1.0 (Cohesion Open Data Platform, dataset 2014-2020 Kohesio projects). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: public domain dedication (CC0 1.0).

AI-assisted summary: The project focuses on developing superconducting sensors, coupling spin qubit nano-ensembles to superconducting resonators, and applying topological magnetic states to quantum technologies. It is co-funded by the EU with a budget of EUR 254,100 from 2019 to 2022 in Zaragoza, Spain. Suggested technology pillar: sensing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.