Journal
SCIENTIFIC REPORTS
Volume 4, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/srep07423
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Funding
- FIRB of the Italian MIUR [RBFR12RPD1]
- Deutsche Forschungsgemeinschaft [FOR1346]
- EPSRC (UK)
- Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [AC02-05CH11231]
- Royal Society
- [JIFF46]
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Molecular nanomagnets are attractive candidate qubits because of their wide inter-and intra-molecular tunability. Uniform magnetic pulses could be exploited to implement one-and two-qubit gates in presence of a properly engineered pattern of interactions, but the synthesis of suitable and potentially scalable supramolecular complexes has proven a very hard task. Indeed, no quantum algorithms have ever been implemented, not even a proof-of-principle two-qubit gate. Here we show that the magnetic couplings in two supramolecular {Cr7Ni}-Ni-{Cr7Ni} assemblies can be chemically engineered to fit the above requisites for conditional gates with no need of local control. Microscopic parameters are determined by a recently developed many-body ab-initio approach and used to simulate quantum gates. We find that these systems are optimal for proof-of-principle two-qubit experiments and can be exploited as building blocks of scalable architectures for quantum simulation.
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