, Volume 118, Issue 2, pp 385–406 | Cite as

Structure and evolution of Indian physics co-authorship networks

  • Chakresh Kumar Singh
  • Shivakumar JoladEmail author


We trace the evolution of Indian physics community from 1919 to 2013 by analyzing the co-authorship network constructed from papers published by authors in India in American Physical Society (APS) journals. We make inferences on India’s contribution to different branches of Physics and identify the most influential Indian physicists at different time periods. The relative contribution of India to global physics publication (research) and its variation across subfields of physics is assessed. We extract the changing collaboration pattern of authors between Indian physicists through various network measures. We study the evolution of Indian physics communities and trace the mean life and stationarity of communities by size in different APS journals. We map the transition of authors between communities of different sizes from 1970 to 2013, capturing their birth, growth, merger and collapse. We find that Indian–Foreign collaborations are increasing at a faster pace compared to the Indian–Indian. We observe that the degree distribution of Indian collaboration networks follows the power law, with distinct patterns between Physical Review A, B and E, and high energy physics journals Physical Review C and D, and Physical Review Letters. In almost every measure, we observe strong structural differences between low-energy and high-energy physics journals.


Collaboration network Community detection Community evolution Physics community India 

Mathematics subject classification

91D30 62-07 86A17 



We acknowledge American Physical Society for providing us meta data of all APS publications till 2013. We thank Anirban Dasgupta and Anand Sengupta (IITGN)) for insightful comments, Jayesh Choudhary, Richa Tripathi, Amit Reza, Murali Enduri and Vinod Reddy for useful discussions.

Author contributions

C.S. was involved in data curation, formal analysis, methodology, software, validation, visualization, and in original draft preparation. S.J. was involved in conceptualization, formal analysis, methodology, project administration, resources, supervision, validation, original draft preparation, review and editing the final draft.

Supplementary material

11192_2018_2999_MOESM1_ESM.pdf (552 kb)
Structure and Evolution of Indian Physics Co-authorship Networks. In this file we provide plots highlighting statistics about the Indian authors (Number of publications and their mean active period), appearance of new Indian Authors in various APS journals over time, affiliating dynamics representing changing affiliation of authors from India to foreign and vice versa, and identification of broad research areas of communities.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Indian Institute of Technology GandhinagarGandhinagarIndia

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