Abstract
A quantum algorithm for the calculation of \(\pi \) is proposed and implemented on the five-qubit IBM quantum computer with superconducting qubits. We find \(\pi =3.157\pm 0.017\). The error is due to the noise of quantum one-qubit operations and measurements. The results can be used for estimating the errors of the quantum computer and suggest that the errors are purely random.
Similar content being viewed by others
References
Koch, J., Yu, T.M., Gambetta, J., Houck, A.A., Schuster, D.I., Majer, J., Blais, A., Devoret, M.H., Girvin, S.M., Schoelkopf, R.J.: Charge-insensitive qubit design derived from the Cooper pair box. Phys. Rev. A 76, 042319 (2007). https://doi.org/10.1103/PhysRevA.76.042319
Chow, J.M., Gambetta, J.M., Magesan, E., Abraham, D.W., Cross, A.W., Johnson, B.R., Masluk, N.A., Ryan, C.A., Smolin, J.A., Srinivasan, S.J., Steffen, M.: Implementing a strand of a scalable fault-tolerant quantum computing fabric. Nat. Commun. 5, 4015 (2014)
Temme, K., Bravyi, S., Gambetta, J.M.: Error mitigation for short-depth quantum circuits. Phys. Rev. Lett. 119, 180509 (2017). https://doi.org/10.1103/PhysRevLett.119.180509
Kandala, A., Temme, K., Córcoles, A.D., Mezzacapo, A., Chow, J.M., Gambetta, J.M.: Error mitigation extends the computational reach of a noisy quantum processor. Nature 567, 491 (2019)
Córcoles, A., Magesan, E., Srinivasan, S.J., Cross, A.W., Steffen, M., Gambetta, J.M., Chow, J.M.: Demonstration of a quantum error detection code using a square lattice of four superconducting qubits. Nat. Commun. 6, 6979 (2015). https://doi.org/10.1038/ncomms7979
Zhukov, A., Remizov, S., Pogosov, W., Lozovik, E.: Algorithmic simulation of far-from-equilibrium dynamics using quantum computer. Quantum Inf. Process. 17, 223 (2018)
Doronin, S.I., Fel’dman, E.B., Zenchuk, A.I.: Solving systems of linear algebraic equations via unitary transformations on quantum processor of IBM Quantum Experience. Quantum Inf. Process. 19(2), 68 (2020)
Kandala, A., Mezzacapo, A., Temme, K., Takita, M., Brink, M., Chow, J.M., Gambetta, J.M.: Hardware-efficient variational quantum eigensolver for small molecules and quantum magnets. Nature 549, 242 (2017)
Li, Y., Benjamin, S.C.: Efficient variational quantum simulator incorporating active error minimization. Phys. Rev. X 7, 021050 (2017). https://doi.org/10.1103/PhysRevX.7.021050
Acknowledgements
This work was performed as a part of a state task (State Registration No. AAAA-A19-119071190017-7). This work is partially supported by the Russian Foundation for Basic Research (Grants Nos. 19-32-80004 and 20-03-00147). The authors are grateful to D. E. Feldman for useful discussion.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Bochkin, G.A., Doronin, S.I., Fel’dman, E.B. et al. Calculation of \(\pi \) on the IBM quantum computer and the accuracy of one-qubit operations. Quantum Inf Process 19, 257 (2020). https://doi.org/10.1007/s11128-020-02759-6
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11128-020-02759-6