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arXiv · 2108.13527

Double sparse quantum state preparation

Tiago M. L. de Veras·Leon D. da Silva·Adenilton J. da Silva
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Abstract

Initializing classical data in a quantum device is an essential step in many quantum algorithms. As a consequence of measurement and noisy operations, some algorithms need to reinitialize the prepared state several times during its execution. In this work, we propose a quantum state preparation algorithm called CVO-QRAM with computational cost O(kM), where M is the number of nonzero probability amplitudes and $k$ is the maximum number of bits with value 1 in the patterns to be stored. The proposed algorithm can be an alternative to create sparse states in future NISQ devices.

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Tiago M. L. de Veras, Leon D. da Silva, Adenilton J. da Silva. 2021-08-30. Double sparse quantum state preparation. https://doi.org/10.1007/s11128-022-03549-y

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