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Welcome to the Open Access scientific publications portal of the École Polytechnique


HAL-Polytechnique is the institutional platform of deposit and consultation of scientific papers made by researchers of the 23 laboratories of the École Polytechnique. Its ambition is to contribute to the development of the scientific information’s open access, to optimize visibility of École Polytechnique in scientific domains, and to preserve the scientific production of its researchers. From this portal, you can browse documents deposited, grouped by laboratoryauthor or scientific domain.

In order to deposit in HAL-Polytechnique, you must create an account.

To deposit a full-text paper, you must verify publishers’ policies on self-archiving in open access. They are available at SHERPA/RoMEO website. You can also contact us.


Latest submissions

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Full text documents

18 818

bibliographic references

22 773

Documents in Open Access

63 %


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Submissions statistics

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HAL is 20 years old: a look back at the official ceremony which took place on 24 November 2021

HAL officially celebrated its 20th anniversary at the Musée des Confluences in Lyon on November 24. This was a great opportunity to bring together the CCSD team, the unit’s supervisory bodies, the key players in its history, as well as the people and partners who support it day after day. It would have been impossible […]

A new branding for the CCSD and its services


National agreement with the publisher Elsevier: implementation of the imports in HAL


Enrich HAL’s repository of authors’ affiliations thanks to the ROR international identifier


Episciences release notes Episciences version 1.0.18