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Physics LibreTexts

7: The Density Matrix

  • Page ID
    5662
  • [ "article:topic-guide", "authorname:flowlerm", "Density Matrix" ]

    • 7.1: The Density Matrix
      A density matrix is a matrix that describes a quantum system in a mixed state, a statistical ensemble of several quantum states.

    Thumbnail: measured density matrix of a thermal state. Image used with permission (CC SA-BY 3.0 unported; measured density matrix of a thermal state).​​​​​