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oai:recercat.cat:2445/246232025-12-04T21:42:06Zcom_2072_1057col_2072_478917col_2072_478933

Molecular prototypes for spin-based CNOT and SWAP quantum gates Aromí Bedmar, Guillem Repollés Rabinad, Ana Martínez Pérez, María José Aguilà Avilés, David Roubeau, Olivier Zueco, David Alonso Gascón, Pablo Javier Evangelisti, Marco Camón Lasheras, Agustín Sesé Monclús, Javier Barrios Moreno, Leoní Alejandra Luis Vitalla, Fernando Nanotecnologia Ordinadors quàntics Nanotechnology Quantum computers We show that a chemically engineered structural asymmetry in [Tb2] molecular clusters renders the two weakly coupled Tb3+ spin qubits magnetically inequivalent. The magnetic energy level spectrum of these molecules meets then all conditions needed to realize a universal CNOT quantum gate. A proposal to realize a SWAP gate within the same molecule is also discussed. Electronic paramagnetic resonance experiments confirm that CNOT and SWAP transitions are not forbidden. 2012-04-26T12:55:01Z 2012-04-26T12:55:01Z 2011-09-08 2012-03-16T13:30:32Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0031-9007 https://hdl.handle.net/2445/24623 598987 eng Reproducció digital del document publicat a: http://dx.doi.org/10.1103/PhysRevLett.107.117203 Physical Review Letters, 2011, vol. 107, núm. 11, 117203(5) http://dx.doi.org/10.1103/PhysRevLett.107.117203 info:eu-repo/grantAgreement/EC/FP7/258060/EU//FUNCMOLQIP (c) American Physical Society, 2011 info:eu-repo/semantics/openAccess 5 p. application/pdf American Physical Society Articles publicats en revistes (Química Inorgànica i Orgànica)