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Brijesh Kumar

Brijesh Kumar
Brijesh Kumar
Professor
Centre/School/Special Centre
School of Physical Sciences
Room No
122
Off. Phone
011-2673 8805
Email
bkumar@mail.jnu.ac.in , bkumar@jnu.ac.in
Personal Webpage
http://www.jnu.ac.in/Faculty/bkumar/
Qualifications

PhD (2003, Indian Institute of Science, Bengaluru)

Areas of Interest/Specialization

Theoretical Condensed Matter Physics

Experience

Professor: JNU, New Delhi (2017 - present)
Associate Professor: JNU, New Delhi (2014 - 17) 
Assistant Professor: JNU, New Delhi (2005 - 14) 
Post-Doc: EPFL, Lausanne, Switzerland (2003-05)  

Awards & Honours
  • INSA Medal for Young Scientists (2009)
  • Associate, Indian Academy of Sciences (2006-2011)
  • Junior Associate, The Abdus Salam ICTP, Trieste, Italy (2009-2015)
  • Regular Associate, The Abdus Salam ICTP, Trieste, Italy (2017-2022)
International Collaboration/Consultancy
  • International workshop on "Emergence of New States of Matter in Magnetic Systems and Beyond" in ICTP, Trieste, Italy (5-9 July 2010).
    Jointly organized with F. Becca (Italy), M. Kiselev (Italy) and F. Mila (Switzerland).
  • ICTP International Workshop on "Current Trends in Frustrated Magnetism", co-funded by SERB (New Delhi) and held at JNU, New Delhi (9-13 February 2015).
    Organizers: Brijesh Kumar (JNU; Co-ordinator), M. Kiselev (ICTP, Trieste, Italy),S. Patnaik (JNU) and F. Becca (SISSA, Trieste, Italy).
Best Peer Reviewed Publications
  1.  "Superconductivity in CoO2 layers and the resonating valence bond mean-field theory of the triangular lattice t-J model"
    Brijesh Kumar and B. Sriram Shastry, Phys. Rev. B 68, 104508 (2003)
  2. "Quantum spin models with exact dimer ground states"
    Brijesh Kumar, Phys. Rev. B 66, 024406 (2002)
  3. "Canonical representation for electrons and its application to the Hubbard model"
    Brijesh Kumar, Phys. Rev. B 77, 205115 (2008)
  4. "Exact spin-orbital separation in a solvable model in one dimension"
    Brijesh Kumar, Phys. Rev. B 87, 195105 (2013)
  5. "Theory of quantum oscillations of magnetization in Kondo insulators"
    Panch Ram and Brijesh Kumar, Phys. Rev. B 96, 075115 (2017)
Recent Peer Reviewed Journals/Books
  1. "Quantum paramagnetism and magnetization plateaus in a kagome-honeycomb Heisenberg antiferromagnet"
    Meghadeepa Adhikary, Arnaud Ralko and Brijesh Kumar, Phys. Rev. B 104, 094416 (2021)
  2. "Inversion and magnetic quantum oscillations in the symmetric periodic Anderson model"
    Panch Ram and Brijesh Kumar, Phys. Rev. B 99, 235130 (2019)
  3. "Spontaneous dimerization and moment formation in the Hida model of the spin-1 kagome antiferromagnet"
    Pratyay Ghosh and Brijesh Kumar, Phys. Rev. B 97, 014413 (2018)