1 June 2005 The controlled indirect coupling between spatially-separated qubits in antiferromagnet-based NMR quantum registers
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Proceedings Volume 5833, Quantum Informatics 2004; (2005) https://doi.org/10.1117/12.620505
Event: 18th International Conference on Photoelectronics and Night Vision Devices and Quantum Informatics 2004, 2004, Moscow, Russian Federation
Abstract
It is considered the indirect inter-qubit coupling in 1D chain of atoms with nuclear spins 1/2 which plays role of qubits fin the quantum register. This chain of the atoms is placed by regular way in easy-axis 3D antiferromagnetic thin plate substrate which is cleaned from the other nuclear spin containing isotopes. It is shown that the range of indirect inter-spin coupling may run to a great number of lattice constants both near critical point of quantum phase transition in antiferromagnet of spin-flop type (control parameter is external magnetic field) and/or near homogeneous antiferromagnetic resonance (control parameter is microwave frequency).
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A. A. Kokin, A. A. Kokin, } "The controlled indirect coupling between spatially-separated qubits in antiferromagnet-based NMR quantum registers", Proc. SPIE 5833, Quantum Informatics 2004, (1 June 2005); doi: 10.1117/12.620505; https://doi.org/10.1117/12.620505
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