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Increasing the Hilbert space dimension using a single coupled molecular spin

Biard, Hugo; Moreno-Pineda, Eufemio; Ruben, Mario 1; Bonet, Edgar; Wernsdorfer, Wolfgang 1; Balestro, Franck
1 Institut für Quantenmaterialien und -technologien (IQMT), Karlsruher Institut für Technologie (KIT)


Quantum technologies are expected to introduce revolutionary changes in information processing in the near future. Nowadays, one of the main challenges is to be able to handle a large number of quantum bits (qubits), while preserving their quantum properties. Beyond the usual two-level encoding capacity of qubits, multi-level quantum systems are a promising way to extend and increase the amount of information that can be stored in the same number of quantum objects. Recent work (Kues et al. 2017), has shown the possibility to use devices based on photonic integrated circuits to entangle two qudits (with “d” being the number of available states). In the race to develop a mature quantum technology with real-world applications, many possible platforms are being investigated, including those that use photons, trapped ions, superconducting and silicon circuits and molecular magnets. In this work, we present the electronic read-out of a coupled molecular multi-level quantum systems, carried by a single Tb2Pc3 molecular magnet. Owning two magnetic centres, this molecular magnet architecture permits a 16 dimensions Hilbert space, opening the possibility of performing more complex quantum algorithms.

Verlagsausgabe §
DOI: 10.5445/IR/1000136924
Veröffentlicht am 30.08.2021
DOI: 10.1038/s41467-021-24693-6
Zitationen: 3
Web of Science
Zitationen: 3
Zitationen: 8
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Institut für Quantenmaterialien und -technologien (IQMT)
Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 12.2021
Sprache Englisch
Identifikator ISSN: 2041-1723
KITopen-ID: 1000136924
HGF-Programm 47.12.02 (POF IV, LK 01) Exploratory Qubits
Erschienen in Nature Communications
Verlag Nature Research
Band 12
Heft 1
Seiten Art. Nr.: 4443
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 21.07.2021
Nachgewiesen in Scopus
Web of Science
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