Dear Colleagues,

Following the success of the 1st International Online Conference on Atoms (IOCAT2026), it is my pleasure to welcome you to the 2nd International Online Conference on Atoms (IOCAT2027), which will take place online from 27 to 29 January 2027. The conference is organized by the MDPI open access journal Atoms (ISSN: 2218-2004; Impact Factor: 1.5).

The first edition of IOCAT demonstrated the strong interest of the community in an international forum dedicated to atomic physics and its applications. Building on this success, the 2027 edition will extend over three days, allowing for a broader scientific program and more opportunities for discussion and interaction among participants.

IOCAT2027 aims to bring together researchers working in the diverse areas of atomic physics and related fields, providing a platform to present recent advances in and exchange ideas on both theoretical and experimental developments.

The conference will feature the following sessions:
S1. Atomic structure and spectroscopy: theory and experiment;
S2. Atomic collisions and strong field processes;
S3. Atomic data for astrophysics and laboratory plasmas;
S4. Cold atoms, quantum control and quantum technologies;
S5. Computational and AI methods in atomic physics;
S6. Fundamental tests and precision measurements with atoms.

These topics reflect the breadth and vitality of modern atomic physics, from fundamental studies of atomic structure and interactions to emerging applications in quantum technologies, astrophysics, and precision measurements.

As an online international conference, IOCAT2027 offers researchers from around the world the opportunity to participate and to exchange ideas without the need for travel, enabling a wide and diverse participation.

I would like to thank all members of the scientific and organizing committees for their efforts in preparing this conference, as well as all speakers and participants for contributing to its success.

I look forward to welcoming you to IOCAT2027 for three days of stimulating scientific exchange.

Kind regards,
Prof. Dr. Pascal Quinet
Atomic Physics and Astrophysics, University of Mons, Belgium.

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Sessions

IOCAT 2027 will accept abstracts only. The accepted abstracts will be available online on Sciforum.net during and after the conference.

Important Deadline

1. Deadline for abstract submission: 27 October 2026.
2. Abstract acceptance notification: 27 November 2026.

Please note:
An abstract acceptance email only confirms that your abstract has been accepted. Oral or poster presentation invitations are determined separately by the conference chairs, and you will receive an additional email with the presentation result.

If you do not have an account, please register at www.sciforum.net. After logging in, submit your abstract using the “Submit Abstract” button on the conference homepage. No template is required.

Abstract Requirements

1. Types of Submissions
- Accepted: Original research abstracts; systematic reviews or meta-analyses abstracts (must comply with PRISMA 2020).
- Not accepted: Narrative, scoping, comparative, perspective, opinion, or essay-style reviews.

2. Content Requirements
- Length: 200-300 words.
- Structure: Introduction, Methods, Results, Conclusions.
- Language: Clear, publication-ready English.
- Originality: Must be original and unpublished; previously published abstracts will not be considered.

3. Authorship
- The submitting author must ensure all co-authors approve the content.
- Authors may submit multiple abstracts, but only one abstract per author may be selected for an oral presentation.

1. Each abstract must designate one presenter. To change the presenter, please contact us after you receive the oral/poster presentation invitation.
2. Only live presentations are accepted.
3. Presenters who do not attend the live session will not be eligible for awards or presentation certificates.

The slot for the oral presentation is 15 mins. We advise that your presentation lasts for a maximum of 12 mins, leaving at least 3 mins for the Q&A session.

Authors are encouraged to prepare presentations using PowerPoint or equivalent software for online display alongside their abstract. If provided, slides will be presented directly on the conference website via the Sciforum.net slide viewer and should be prepared in the same format as a traditional conference presentation of research results. All slides must be converted to PDF format prior to submission to ensure accurate online display.

Each presentation should:

- Communicate the research question or objective, methodology, key results, and scientific novelty;
- Use a clear and logical structure, typically Introduction-Methods-Results&Discussion structure (IMRaD) or a field-appropriate alternative;
- Emphasize the relevance of the work;
- Support key findings with clear figures or tables where appropriate;
- Conclude with a critical interpretation of the results and their impact.

Posters should be designed to allow independent understanding of the research and clearly present the essential elements of the study.

Each poster should include:

- Title, authors, affiliations, and contact details (clearly displayed at the top);
- Brief introduction outlining the research objective;
- Concise methodology summary;
- Main results, supported by clear, well-labeled figures or tables where appropriate;
- Short conclusion summarizing key findings and their relevance.

Technical specifications:
Dimensions (cm): 84.1 × 118.9 (A0 - portrait)
Resolution:300 dpi
Pixel size (portrait, 300 dpi):9933 × 14043 px
Minimum font size:≥24

It is the author's responsibility to identify and declare any personal circumstances or interests that may be perceived as inappropriately influencing the representation or interpretation of clinical research. If there is no conflict, please state "The authors declare no conflicts of interest." This should be conveyed in a separate "Conflict of Interest" statement preceding the "Acknowledgments" and "References" sections at the end of the manuscript. Any financial support for the study must be fully disclosed in the "Acknowledgments" section.

MDPI, the publisher of the Sciforum.net platform, is an open access publisher. We believe authors should retain the copyright to their scholarly works. Hence, by submitting an abstract to this conference, you retain the copyright to the work, but you grant MDPI the non-exclusive right to publish this abstract online on the Sciforum.net platform. This means you can easily submit your full paper (with the abstract) to any scientific journal at a later stage and transfer the copyright to its publisher if required.

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