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arXiv · 2008.06027

Lowering Tomography Costs in Quantum Simulation with a Symmetry Projected Operator Basis

Scott E. Smart·David A. Mazziotti
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Abstract

Measurement in quantum simulations provides a means for extracting meaningful information from a complex quantum state, and for quantum computing reducing the complexity of measurement will be vital for near-term applications. For most quantum simulations, the targeted state will obey a number of symmetries inherent to the system Hamiltonian. We obtain a alternative symmetry projected basis of measurement that reduces the number of measurements needed. Our scheme can be implemented at no additional cost on a quantum computer, can be implemented under a variety of measurement or tomography schemes, and is fairly resilient under noise.

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BibTeXRIS

Scott E. Smart, David A. Mazziotti. 2020-08-13. Lowering Tomography Costs in Quantum Simulation with a Symmetry Projected Operator Basis. https://doi.org/10.1103/physreva.103.012420

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