Symmetry in Cosmological Theories and Observations

Dear Colleagues, 

We are delighted to announce the launch of this Special Issue titled "Symmetry in Cosmological Theories and Observations". The field of cosmology has witnessed remarkable advancements in recent years, reshaping our understanding of the Universe. As cosmological research continues to evolve, it permeates various aspects of science, revolutionizing our comprehension of the cosmos and enhancing our interaction with fundamental physical laws. The study of symmetry and asymmetry plays a pivotal role in diverse domains, ranging from the early Universe, dark matter, and dark energy to cosmic microwave background radiation, gravitational waves, and galaxy formation. The synergy of theoretical advancements, observational data, and increasingly powerful computational methods enables us to push the boundaries of what is attainable and sets the stage for future breakthroughs. This Special Issue aims to explore the profound impact of symmetry (and asymmetry) in cosmological theories and observations, shedding light on emerging trends and cutting-edge research. We invite researchers from the fields of cosmology and astrophysics to contribute their innovative works in the following areas: 

• Inflationary models and primordial symmetries;
• Symmetry breaking in the early Universe;
• Dark matter and dark energy models;
• Cosmic microwave background radiation;
• Gravitational waves and their implications for symmetry;
• Galaxy formation and the large-scale structure of the Universe;
• Baryogenesis and leptogenesis;
• Symmetries in high-energy astrophysics;
• Black holes and their symmetries;
• Tests of fundamental symmetries using astronomical observations;
• Symmetry principles in modified gravity theories;
• Topological defects and cosmic strings;
• Symmetry in the context of cosmological models;
• Constraints on symmetry from cosmological data;
• Symmetries in the evolution of the Universe;
• The role of symmetry in cosmological perturbations;
• Asymmetry in cosmic baryon and lepton numbers;
• Probing cosmological symmetries with next-generation observatories. 

We encourage researchers to submit their original research articles, reviews, or perspectives that explore the role of symmetry (and asymmetry) in cosmological theories and observations. This Special Issue provides an opportunity to share novel insights, methodologies, and applications that will shape the future of the field.

Prof. Dr. Seokcheon Lee
Dr. Gansukh Tumurtushaa
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• inflationary models and primordial symmetries
• symmetry breaking in the early Universe
• dark matter and dark energy models
• cosmic microwave background radiation
• gravitational waves and their implications for symmetry
• galaxy formation and the large-scale structure of the Universe
• baryogenesis and leptogenesis
• symmetries in high-energy astrophysics
• black holes and their symmetries
• tests of fundamental symmetries using astronomical observations
• symmetry principles in modified gravity theories
• topological defects and cosmic strings
• constraints on symmetry from cosmological data
• symmetries in the evolution of the universe
• role of symmetry in cosmological perturbations
• asymmetry in cosmic baryon and lepton numbers
• probing cosmological symmetries with next-generation observatories