Quantum speed limit for arbitrary initial states

• Published in: Scientific reports Vol. 4; no. 1; p. 4890
• Main Authors: Zhang, Ying-Jie, Han, Wei, Xia, Yun-Jie, Cao, Jun-Peng, Fan, Heng
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 08.05.2014; Nature Publishing Group
• Subjects: 639/766/483/481; 639/766/483/640; Evolution; Humanities and Social Sciences; multidisciplinary; Science; Speed limits

The minimal time a system needs to evolve from an initial state to its one orthogonal state is defined as the quantum speed limit time, which can be used to characterize the maximal speed of evolution of a quantum system. This is a fundamental question of quantum physics. We investigate the generic...