Molecular prototypes for spin-based CNOT and SWAP quantum gates

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...

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Detalles Bibliográficos
Autores: 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
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/24623
Acceso en línea:https://hdl.handle.net/2445/24623
Access Level:acceso abierto
Palabra clave:Nanotecnologia
Ordinadors quàntics
Nanotechnology
Quantum computers
Descripción
Sumario: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.

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