2016/01/01 by M. Jenkins, M. D. Jenkins, David Zueco +9
Computer Science · Engineering · Mathematics · Physics and Astronomy · #Algorithm #Coherence (philosophical gambling strategy) #Computation #Computer science #Electrical engineering #Electron #Engineering #Hamiltonian (control theory) #Magnetic field #Magnetization #Mathematics #Molecular Junctions and Nanostructures #Nanomagnet #Open quantum system #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum computer #Quantum mechanics #Quantum simulator #Quantum technology #Qubit #Scalability #Spin engineering #Spin polarization #Topology (electrical circuits) #cond-mat.mtrl-sci #quant-ph
paper · pdf · doi:10.1039/c6dt02664h
published as Dalton Trans., 2016,45, 16682-16693 · 27 pages, 6 figures
openalex publication_date 2016/01/01 · arxiv created 2016/10/19 · arxiv updated 2016/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A proposal for a magnetic quantum processor that consists of individual molecular spins coupled to superconducting coplanar resonators and transmission lines is carefully examined. We derive a simple magnetic quantum electrodynamics Hamiltonian to describe the underlying physics. It is shown that these hybrid devices can perform arbitrary operations on each spin qubit and induce tunable interactions between any pair of them. The combination of these two operations ensures that the processor can perform universal quantum computations. The feasibility of this proposal is critically discussed using the results of realistic calculations, based on parameters of existing devices and molecular qubits. These results show that the proposal is feasible, provided that molecules with sufficiently long coherence times can be developed and accurately integrated into specific areas of the device. This architecture has an enormous potential for scaling up quantum computation thanks to the microscopic nature of the individual constituents, the molecules, and the possibility of using their internal spin degrees of freedom.