eprintid: 10191645 rev_number: 6 eprint_status: archive userid: 699 dir: disk0/10/19/16/45 datestamp: 2024-05-07 09:48:23 lastmod: 2024-05-07 09:48:23 status_changed: 2024-05-07 09:48:23 type: article metadata_visibility: show sword_depositor: 699 creators_name: Nuzzi, Davide creators_name: Banchi, Leonardo creators_name: Vaia, Ruggero creators_name: Compagno, Enrico creators_name: Cuccoli, Alessandro creators_name: Verrucchi, Paola creators_name: Bose, Sougato title: Full-magnetic implementation of a classical Toffoli gate ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F60 keywords: Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics note: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. abstract: The Toffoli gate is the essential ingredient for reversible computing, an energy-efficient classical computational paradigm that evades the energy dissipation resulting from Landauer's principle. In this paper, we analyze different setups to realize a magnetic implementation of the Toffoli gate using three interacting classical spins, each one embodying one of the three bits needed for the Toffoli gate. In our scheme, different control-spin configurations produce an effective field capable of conditionally flipping the target spin. We study what the experimental requirements are for the realization of our scheme, focusing on the degree of local control, the ability to dynamically switch the spin-spin interactions, and the required single-spin anisotropies to make the classical spin stable, showing that these are compatible with current technology. date: 2024-03-20 date_type: published publisher: AMER PHYSICAL SOC official_url: http://dx.doi.org/10.1103/physrevresearch.6.013308 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2266030 doi: 10.1103/PhysRevResearch.6.013308 lyricists_name: Bose, Sougato lyricists_id: SBOSE77 actors_name: Bose, Sougato actors_id: SBOSE77 actors_role: owner funding_acknowledgements: PE0000023-NQSTI [PNRR Ministero Universita e Ricerca]; [Department of Physics and Astronomy of the University of Florence]; EP/R029075/1 [EPSRC]; EP/X009467/1 [EPSRC] full_text_status: public publication: Physical Review Research volume: 6 number: 1 article_number: 013308 pages: 7 issn: 2643-1564 citation: Nuzzi, Davide; Banchi, Leonardo; Vaia, Ruggero; Compagno, Enrico; Cuccoli, Alessandro; Verrucchi, Paola; Bose, Sougato; (2024) Full-magnetic implementation of a classical Toffoli gate. Physical Review Research , 6 (1) , Article 013308. 10.1103/PhysRevResearch.6.013308 <https://doi.org/10.1103/PhysRevResearch.6.013308>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10191645/1/PhysRevResearch.6.013308.pdf