Interfacing with Hamiltonian Dynamics

Alastair Kay

doi:10.1103/PhysRevA.79.042330

Interfacing with Hamiltonian Dynamics

Alastair Kay

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Abstract

Simple constructions and protocols are demonstrated to allow the implementation of universal quantum computation on an arbitrarily large quantum system by controlling a fixed number of spins, vastly reducing the engineering requirements in comparison to a direct implementation of the circuit model. Analytic pulse sequences are derived for deterministic gate operation and system cooling which only require pulse strengths that are comparable to the intrinsic Hamiltonian of the system.

Original language	English
Article number	042330
Journal	Phys. Rev. A
Volume	79
DOIs	https://doi.org/10.1103/PhysRevA.79.042330
Publication status	Published - 25 Jul 2008

Keywords

quant-ph

Access to Document

10.1103/PhysRevA.79.042330

0807.4025v2

Cite this

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title = "Interfacing with Hamiltonian Dynamics",

abstract = " Simple constructions and protocols are demonstrated to allow the implementation of universal quantum computation on an arbitrarily large quantum system by controlling a fixed number of spins, vastly reducing the engineering requirements in comparison to a direct implementation of the circuit model. Analytic pulse sequences are derived for deterministic gate operation and system cooling which only require pulse strengths that are comparable to the intrinsic Hamiltonian of the system.",

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AB - Simple constructions and protocols are demonstrated to allow the implementation of universal quantum computation on an arbitrarily large quantum system by controlling a fixed number of spins, vastly reducing the engineering requirements in comparison to a direct implementation of the circuit model. Analytic pulse sequences are derived for deterministic gate operation and system cooling which only require pulse strengths that are comparable to the intrinsic Hamiltonian of the system.

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