A Processor Core Model for Quantum Computing

Details A Processor Core Model for Quantum Computing A Processor Core Model for Quantum Computing

2005-08-23

arxiv.org/abs/quant-ph/0508165v2

Phys. Rev. Lett. 96, 220501 (2006)

Physics

Quantum Physics

5 pages, 2 figures; improved some arguments as suggested by a referee

Scientific paper

10.1103/PhysRevLett.96.220501

We describe an architecture based on a processing 'core' where multiple qubits interact perpetually, and a separate 'store' where qubits exist in isolation. Computation consists of single qubit operations, swaps between the store and the core, and free evolution of the core. This enables computation using physical systems where the entangling interactions are 'always on'. Alternatively, for switchable systems our model constitutes a prescription for optimizing many-qubit gates. We discuss implementations of the quantum Fourier transform, Hamiltonian simulation, and quantum error correction.

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