Coupling single-molecule magnets to quantum circuits

Jenkins, Mark ; Hümmer, Thomas ; Martínez-Pérez, María José ; García-Ripoll, Juanjo ; Zueco, David (Universidad de Zaragoza) ; Luis, Fernando (Universidad de Zaragoza)

Resumen: In this work we study theoretically the coupling of single-molecule magnets (SMMs) to a variety of quantum circuits, including microwave resonators with and without constrictions and flux qubits. The main result of this study is that it is possible to achieve strong and ultrastrong coupling regimes between SMM crystals and the superconducting circuit, with strong hints that such a coupling could also be reached for individual molecules close to constrictions. Building on the resulting coupling strengths and the typical coherence times of these molecules (~ µs), we conclude that SMMs can be used for coherent storage and manipulation of quantum information, either in the context of quantum computing or in quantum simulations. Throughout the work we also discuss in detail the family of molecules that are most suitable for such operations, based not only on the coupling strength, but also on the typical energy gaps and the simplicity with which they can be tuned and oriented. Finally, we also discuss practical advantages of SMMs, such as the possibility to fabricate the SMMs ensembles on the chip through the deposition of small droplets.

Idioma: Inglés

DOI: 10.1088/1367-2630/15/9/095007

Año: 2013

Publicado en: NEW JOURNAL OF PHYSICS 15 (2013), 095007 [22 pp]
ISSN: 1367-2630

Factor impacto JCR: 3.673 (2013)

Categ. JCR: PHYSICS, MULTIDISCIPLINARY rank: 10 / 78 = 0.128 (2013) - Q1 - T1

Financiación: info:eu-repo/grantAgreement/ES/CAM/QUITEMAD-S2009-ESP-1594
Financiación: info:eu-repo/grantAgreement/ES/DGA/FENOL-GROUP
Financiación: info:eu-repo/grantAgreement/EC/FP7/258191/EU/Participative Research labOratory for Multimedia and Multilingual Information Systems Evaluation/PROMISE
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2009-10061
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2012-33022
Financiación: info:eu-repo/grantAgreement/ES/MINECO/MAT2012-38318-C03

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)