Observation of information flow in the anti-ð'«ð'¯-symmetric system with nuclear spins
The recently theoretical and experimental researches on PT-symmetric system have attracted unprecedented attention because of the various interesting features and potential applications in extending canonical quantum mechanics. However, as the counterpart of PT-symmetry, there are few experimental r...
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| creator | Wen Jingwei Qin Guoqing Zheng, Chao Wei, Shijie Kong Xiangyu Tao, Xin Long Guilu |
| description | The recently theoretical and experimental researches on PT-symmetric system have attracted unprecedented attention because of the various interesting features and potential applications in extending canonical quantum mechanics. However, as the counterpart of PT-symmetry, there are few experimental researches on the anti-PT-symmetric quantum system because of the challenges in simulating anti-PT-symmetry in experiment. Here, we propose an algorithm for simulating the generalized anti-PT-symmetric system in the quantum circuit model. Utilizing the algorithm, we demonstrated the quantum simulation of anti-PT system experimentally, and an oscillation of information flow is observed in a nuclear magnetic resonance quantum simulator. The experiment showed that the information could recover from the environment completely when the anti-PT-symmetry is broken, whereas no information can be retrieved in the symmetry-unbroken phase. Our work opens the gate for the practical quantum simulation and experimental investigation of universal anti-PT-symmetric system in a quantum computer. |
| doi_str_mv | 10.1038/s41534-020-0258-4 |
| format | Article |
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| subjects | Algorithms NMR Nuclear magnetic resonance Symmetry |
| title | Observation of information flow in the anti-ð'«ð'¯-symmetric system with nuclear spins |
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