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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, Leoni Alejandra; Luis Vitalla, Fernando
Universitat de Barcelona
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.
Ordinadors quàntics
Quantum computers
(c) American Physical Society 2011
Article - Published version
American Physical Society

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