摘要 Density matrices capture all of a 量子 system's sta

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論文資訊

• 類型：已發表論文
• 日期：2020

摘要

Density matrices capture all of a 量子 system's statistics accessible through projective and positive operator-valued measurements. They do not completely determine its state, however, as they neglect the physical realization of ensembles. Fortunately, the concept of geometric 量子 state does properly describe physical ensembles. Here, given knowledge of a density matrix, possibly arising from a tomography protocol, we show how to estimate the geometric 量子 state using a maximum 熵 principle based on a geometrically-appropriate 熵.

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