Observation of information flow in the anti-𝒫𝒯-symmetric system with nuclear spins

33Citations
Citations of this article
18Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

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.

Cite

CITATION STYLE

APA

Wen, J., Qin, G., Zheng, C., Wei, S., Kong, X., Xin, T., & Long, G. (2020). Observation of information flow in the anti-𝒫𝒯-symmetric system with nuclear spins. Npj Quantum Information, 6(1). https://doi.org/10.1038/s41534-020-0258-4

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free