dr- nishal

Dr. Nishal Rai

Assistant Professor

Specialization: Theoretical High Energy Physics, String Theory

Affiliation: Department of Physics, Sikkim Campus, SRM University.

Education

1
Bachelor of Science (B.Sc.) - Physic

St. Joseph’s College, Darjeeling, 2012

Master of Science (M.Sc.) - Physics

Sikkim University, Sikkim, 2014

2
3
PhD - Theoretical High Energy Physics

Sikkim University, Sikkim, 2019

Research Experience

  • March 2021 - April 2022, PostDoc position in the Departamento de Física Atómica, Molecular y Nuclear, Universidad de Granada, Spain Worked with Dr Eugenio Megias Fernandez in the Application of Fluid/Gravity correspondence to study hydrodynamic systems in a strongly coupled regime.
  • January 2022 - February 2022, Visiting Researcher in Instituto de Fisica Teorica IFT-UMA/CSIS, Madrid, Spain Worked with Prof. Karl Landsteiner and Dr Daniel Areán Fraga in the Application of AdS/CFT correspondence to study the dual strongly coupled Condensed matter system.
  • November 2021 - December 2021, Visiting Researcher in Instituto de Fisica Teorica IFT-UMA/CSIS, Madrid, Spain Worked with Prof. Karl Landsteiner in the Application of AdS/CFT correspondence to study the transport properties of a dual strongly coupled Hydrodynamic system.
  • June 2014 - November 2019, PhD candidate, Sikkim University, India Completed PhD under the supervision of Prof. Subir Mukhpodhyay in the Department of Physics, Sikkim University, India. PhD topic "Study of behaviour of Fermions in some holographic theories using Gauge/Gravity duality". Using the duality we have studied different phases of metal such as – Fermi and Non-Fermi Liquids – Zero temperature limit of High Tc superconductor – Metal/Insulator phase Numerical computations of these supergravity models were done in Mathematica.
  • June 2008 - Dec 2008, M.Sc Physics, Sikkim University, India Worked on Dissertation titled "Application of linear and non-linear system" under the supervision of Dr Hemam Dinesh Singh. Used Fourier technique to study the linear model for vibration of guitar string. Used numerical techniques to analyse non-linear model of landslide. Numerical computation was done in Matlab.

Teaching Experience

  • August 2019- January 2021, SRM University Sikkim, India Assistant Professor in Shri Ramasamy Memorial (SRM) University Sikkim, India.
  • May 2022- Present, SRM University Sikkim, India Assistant Professor in Shri Ramasamy Memorial (SRM) University Sikkim, India.

Selected Publications

  • Mukhopadhyay, S., Rai, N. Holographic Fermi surfaces in charge density wave from D2-D8. J. High Energ. Phys. 2021, 160 (2021). https://doi.org/10.1007/JHEP09(2021)160, arXiv:2008.00432.
  • Rai, N., Mukhopadhyay, S. Holographic charge density wave from D2-D8. J. High Energ. Phys. 2020, 109 (2020). https://doi.org/10.1007/JHEP05(2020)109.
  • N. Rai, Fermionic response in nonlinear arcsin electrodynamics,Eur.Phys. J. C (2019) 79: 972, https://doi.org/10.1140/epjc/s10052-019-7469-x.
  • N. Rai and S. Mukhopadhyay, DC conductivity from backreacted non-linear arcsin electrodynamics, Annals Phys. 411, 167974 (2019). doi:10.1016/j.aop.2019.167974.
  • S. Mukhopadhyay and N. Rai, Gapped fermionic spectrum from a domain wall in seven dimension, Phys. Lett. B 780, 608 (2018).
  • S. Mukhopadhyay and N. Rai, Fermionic spectrum from a domain wall in five dimension, Phys. Rev. D 98, 026007 (2018). doi:10.1103/PhysRevD.98.026007
  • S. Mukhopadhyay and N. Rai, Holographic Fermi surface at finite temperature in six- dimensional (2, 0) theory, Phys. Rev. D 96,066001 (2017). doi: 10.1103/PhysRevD.96.026005.
  • S. Mukhopadhyay and N. Rai, Holographic Fermi surfaces in the sixdimensional (2, 0) theory, Phys. Rev. D 96, 026005 (2017). doi: 10.1103/PhysRevD.96.066001.

Achievements and Awards

  • CSIR-UGC NET-JRF 2015 Junior Research Fellow - Qualified a national level exam conducted by Council of Scientific and Industrial Research (CSIR)- University Grand Commission (UGC), India. Funding of my PhD work was done by UGC India.
  • M.Sc Physics 2014, Sikkim University Awarded with silver medal in M.Sc physics 2014 batch.
  • Research Conclave’18, 2018, Guwahati, India Awarded with best Oral Presentation in a National Seminar.
  • Sikkim University Students’ Association (Student Union Body) 2016-2017 Worked as Secretary for Academic Affairs (Executive Member) in Sikkim University Students’ Association.

Research Interests

  • String Theory
  • Gauge/Gravity Duality
  • AdS/CMT
  • FFluid-Gravity Correspondence
  • Quantum Field Theory

Programming Skills

  • Mathematica
  • Matlab
  • Latex

Communication Skills

  • 2020, Summer School, Summer School on Superstring Theory and Related Topics,The Abdul Salam International Center for Theoretical Physics, Trieste, Italy Participated in and completed
  • 2018, Oral Presentation, On the recent developments in Physics, India Presented my PhD research in a National Conference organised by Nar Bahadur Bhandari Degree College, Tadong, Sikkim
  • 2018, Poster, Interdisciplinary Science, India Presented research based on my PhD work in Sikkim University, Sikkim, India.
  • 2018, Oral, Trends in Science and Technology, India Presented research paper based on holographic non-Fermi liquid in a National Seminar organised by Salesian college, Siliguri, West bengal, India
  • 2018, Oral, Research Conclave’18, India Presented PhD research work in a National Seminar organized under the banner of Students’ Academic Board (SAB) of Indian Institute of Technology Guwahati (IITG), Assam, India.
  • 2018, Poster, 24th Raman Memorial Conference (RMC) Presented research based on my PhD work in a National conference in Savitribai Phule Pune University, Pune, India.