About the Authors

Arnab Chatterjee

arnabchat@gmail.com

Affiliation Condensed Matter Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India

Asim Ghosh

Affiliations Condensed Matter Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India, Department of Computer Science, Aalto University School of Science, P.O. Box 15400, FI-00076 AALTO, Finland

Bikas K. Chakrabarti

Affiliations Condensed Matter Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India, Economic Research Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AC AG BKC. Performed the experiments: AC AG. Analyzed the data: AC AG BKC. Contributed reagents/materials/analysis tools: AC AG. Wrote the paper: AC AG BKC.