4.5 Article

Observation of a fast evolution in a parity-time-symmetric system

出版社

ROYAL SOC
DOI: 10.1098/rsta.2012.0053

关键词

parity-time-symmetric Hamiltonian; non-Hermiticity; nuclear magnetic resonance; brachistochrone; duality quantum computation

资金

  1. National Natural Science Foundation of China [11175094]
  2. National Basic Research Program of China [2009CB929402, 2011CB9216002]

向作者/读者索取更多资源

In parity-time-symmetric (PT-symmetric) Hamiltonian theory, the optimal evolution time can be reduced drastically and can even be zero. In this article, we report our experimental simulation of the fast evolution of a PT-symmetric Hamiltonian in a nuclear magnetic resonance quantum system. The experimental results demonstrate that the PT-symmetric Hamiltonian system can indeed evolve much faster than the quantum system, and the evolution time can be arbitrarily close to zero.

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