Proof-of-Concept Quantum Simulator Based on Molecular Spin Qudits
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The use of d-level qudits instead of two-level qubits can largely increase the power of quantum logic for many applications, ranging from quantum simulations to quantum error correction. Magnetic molecules are ideal spin systems to realize these large-dimensional qudits. Indeed, their Hamiltonian can be engineered to an unparalleled extent and can yield a spectrum with many low-energy states. In particular, in the past decade, intense theoretical, experimental, and synthesis efforts have been devoted to develop quantum simulators based on molecular qubits and qudits. However, this remarkable potential is practically unexpressed, because no quantum simulation has ever been experimentally demonstrated with these systems. Here, we show the first prototype quantum simulator based on an ensemble of molecular qudits and a radiofrequency broadband spectrometer. To demonstrate the operativity of the device, we have simulated quantum tunneling of the magnetization and the transverse-field Ising model, representative of two different classes of problems. These results represent an important step toward the actual use of molecular spin qudits in quantum technologies.
Original language | English |
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Journal | Journal of the American Chemical Society |
Volume | 146 |
Issue number | 1 |
Pages (from-to) | 1053-1061 |
Number of pages | 9 |
ISSN | 0002-7863 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
Funding Information:
This work received financial support from the European Union─NextGenerationEU, PNRR MUR project PE0000023-NQSTI, from the European Union’s Horizon 2020 program under grant agreement no. 862893 (FET-OPEN project FATMOLS), from the Novo Nordisk foundation under grant NNF21OC0070832 in the call “Exploratory Interdisciplinary Synergy Programme 2021” and from Fondazione Cariparma. a
Publisher Copyright:
© 2023 The Authors. Published by American Chemical Society.
ID: 380295981