Comment on 'Energy-time uncertainty relation for driven quantum systems'

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13 Citations (Scopus)


Deffner and Lutz (2013 J. Phys. A: Math. Theor. 46 335302) extended the Margolus-Levitin bound to time-dependent closed system. We point out that thier analysis is incorrect. The Margolus-Levitin bound has not yet been established in time-dependent quantum systems, except for the adiabatic case.

Original languageEnglish
Article number318001
JournalJournal of Physics A: Mathematical and Theoretical
Issue number31
Publication statusPublished - 2018 Jun 28


  • energy-time uncertainty relation
  • quantum dynamics
  • quantum speed limit


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