Trace distance measure of coherence

نویسندگان

  • Swapan Rana
  • Preeti Parashar
  • Maciej Lewenstein
چکیده

We show that trace distance measure of coherence is a strong monotone for all qubit and, so called, X states. An expression for the trace distance coherence for all pure states and a semi definite program for arbitrary states is provided. We also explore the relation between l1-norm and relative entropy based measures of coherence, and give a sharp inequality connecting the two. In addition, it is shown that both lp-normand Schatten-p-normbased measures violate the (strong) monotonicity for all p ∈ (1,∞).

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عنوان ژورنال:
  • CoRR

دوره abs/1511.01854  شماره 

صفحات  -

تاریخ انتشار 2015