The number of terms in the superpositions upper bounds the amount of the coherence change

Feng Liu, Fei Li. The number of terms in the superpositions upper bounds the amount of the coherence change. Quantum Information Processing, 15(10):4203-4209, 2016. [doi]

@article{LiuL16-52,
  title = {The number of terms in the superpositions upper bounds the amount of the coherence change},
  author = {Feng Liu and Fei Li},
  year = {2016},
  doi = {10.1007/s11128-016-1399-4},
  url = {http://dx.doi.org/10.1007/s11128-016-1399-4},
  researchr = {https://researchr.org/publication/LiuL16-52},
  cites = {0},
  citedby = {0},
  journal = {Quantum Information Processing},
  volume = {15},
  number = {10},
  pages = {4203-4209},
}