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ERC

FUNCMOLQIP Report Summary

Project ID: 258060
Funded under: FP7-IDEAS-ERC
Country: Spain

Final Report Summary - FUNCMOLQIP (Design and Preparation of Functional Molecules for Quantum Computing and Information Processing)

The realization of quantum computing would signify a true revolution to the way information is processed and manipulated, which is expected to produce a deep impact in society. Currently, there are huge competitive efforts around the world to win this futuristic race. Several technologies are being explored and in this project we have created realizations of the qubits and qugates necessary for quantum information processing using synthetic chemistry. For this, we have used the spin states within molecules as carriers of the quantum information.
Several molecules have been designed and created in our laboratory that contain two metals or groups of metals (clusters) weakly coupled magnetically. These metals or clusters are aimed at exhibiting a spin ground state suitable to embody a qubit. Thes have been made as equivalent qubits and also as two different qubits within each molecules. The latter was one of the challenges proposed in the project. The disposition of two inequivalent spins, with a mutual weak magnetic interaction is indeed a requirement for these assemblies to be considered potential 2qubit quantum gates, SWAP and CNOT. These goals have been attained also with a synthetic discovery allowing to prepare heterometallic [LnLn’] dinuclear complexes providing a wide host of qugate designs, if the Ln centers are considered good realizations of qubits. For some of them, deep magnetic and spectroscopic studies have been performed that have served to demonstrate that they fulfill the requirements to act as qugates. In addition, pulsed EPR techniques have shown that these molecular systems exhibit the quantum dynamic properties necessary to realize this function. A future challenge is to couple these molecules with other quantum objects (eg, a quantum resonator) so as to begin building quantum devices.
Another of the challenges of the project was to build molecular species capable of responding to external stimuli in order to switch on and of the interaction between two qubits contained within these molecules. We have been able to make several molecules of this type incorporating a photoactive moiety that isomerizes reversibly with light irradiation. The reversible photoisomerization has been demonstrated in solution and EPR has demonstrated that the qubit rotations exhibit coherent quantum dynamics. This opens the door to qugates controlled and triggered by light.
It can be safely concluded that most of the goals of the project have been achieved.

Contact

Xavier Gutierrez, (Head of Management Unit)
Tel.: +34934035385
Fax: +34934489434
E-mail
Record Number: 191682 / Last updated on: 2016-11-11