Quantum speed limits—primer, perspectives, and potential future directions

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• 作者：Michael R. Frey
• 关键词：Quantum speed limit ; Mandelstam–Tamm inequality ; Margolus–Levitin inequality ; Geometrical state space perspective ; Quantum control ; Krotov algorithm ; Quantum state evolution ; Open systems ; Non ; unitary evolution ; Quantum brachistochrone ; Quantum Fisher information ; Entanglement
• 刊名：Quantum Information Processing
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：15
• 期：10
• 页码：3919-3950
• 全文大小：929 KB
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Mathematics
  Engineering, general
  Computer Science, general
  Characterization and Evaluation Materials
  
• 出版者：Springer Netherlands
• ISSN：1573-1332
• 卷排序：15

文摘

Fundamental physical limits on the speed of state evolution in quantum systems exist in the form of the Mandelstam–Tamm and the Margolus–Levitin inequalities. We give an expository review of the development of these quantum speed limit (QSL) inequalities, including extensions to different energy statistics and generalizations to mixed system states and open and multipartite systems. The QSLs expressed by these various inequalities have implications for quantum computation, quantum metrology, and control of quantum systems. These connections are surveyed, and some important open questions are noted.