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Center for Astrophysics Research and Technologies Seminar Series Information


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Automation in quantum information

Thursday January 25, 2018
3:30 pm

 Presenter:  Patrick Coles, Los Alamos National Laboratory
 Series:  CQuIC Seminars
 Abstract:  Analytics have made enormous progress for several decades in quantum information, e.g., in proving the security of quantum key distribution (QKD) protocols and in developing novel algorithms for quantum computing. However, there are many reasons why numerics may soon take over the field. In this talk, I will discuss our efforts to bring automation to the fields of QKD and quantum algorithms.

In the case of QKD, analytical methods for security proofs (1) often give loose bounds on the key rate, (2) are highly technical such that only a few experts are proficient in them, and (3) are not robust to device imperfections or slight changes in protocol structure. In our work [1,2], we developed a tight, robust numerical method for security analysis of QKD protocols, and we released a user-friendly software that implements our method [3].

In the case of quantum algorithms, numerical methods for algorithm discovery are appealing due to the non-intuitive nature of such algorithms and due to connectivity and noise issues of actual computing hardware. Our group at LANL is currently developing an automated approach for discovering and optimizing quantum algorithms.

[1] P. J. Coles, E. M. Metodiev, N. Lutkenhaus (2016) Numerical approach for unstructured quantum key distribution. Nature Communications. 7: 11712.
[2] A. Winick, N. Lutkenhaus, P. J. Coles (2017) Reliable numerical key rates for quantum key distribution. arXiv: 1710.05511.
[3] Available at: https://lutkenhausgroup.wordpress.com/qkd-software/
 Host:  Francisco Becerra-Chavez
 Location:  Room 190, Physics & Astronomy

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