Application of the adiabatic mannequin of quantum computation requires efficient encoding of the answer to computational problems into the lowest eigenstate of a Hamiltonian that supports common adiabatic quantum computation. Experimental methods are sometimes limited to restricted types of 2-body interactions. Therefore, universal adiabatic quantum computation requires a method for approximating quantum many-physique Hamiltonians as much as arbitrary spectral error using at most 2-physique interactions. Hamiltonian gadgets, launched around a decade ago, provide the one present means to deal with this requirement. Although the purposes of Hamiltonian gadgets have steadily grown since their introduction, little progress has been made in overcoming the constraints of the gadgets themselves. In this experimentally motivated theoretical study, we introduce a number of gadgets which require considerably extra practical management parameters than comparable gadgets within the literature.

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