Laboratoire de Physique Théorique
Toulouse - UMR 5152

Phd Supervisor :
Dr. Didier Poilblanc

About me :
I am a PhD student at the Laboratoire de Physique Theorique(CNRS), Toulouse, France. Working in the field of theoretical condensed matter physics, specifically on Quantum magnetism in 2D, under the guidance of Dr. Didier Poilblanc. I completed my M.Sc in Physics from the Department of Physics of the Indian Institute of Technology Madras, Chennai, India. My Master’s thesis was on "Study of the spectrum of scalar Laplacian on five dimensional Sasaki Einstein manifolds", carried out under the supervision of Dr. Suresh Govindarajan. I did my B.Sc Physics from University of Delhi.

Centres d’intérêt / Research Interests :


Quelques mots clefs / Some keywords :

 Systèmes d’électrons fortements corrélés / Strongly correlated electronic systems,
 Spins quantiques frustrés en basse dimension / Low dimensional frustrated quantum spin systems,
 Approche numérique / Numerical approach.

My research focuses primarily on studying the Ground State of S=1/2 Heisenberg Antiferromagnet on the Kagome Lattice(see image on the left), this lattice is an example of one which has a highly frustrated geometry and low coordination number, the combination of both of these factors leads to emergence of exotic quantum phases of matter with novel properties and materials such as Herbertsmithite actually have these geometries. Various candidates have been proposed as the ground state of the QHAF on Kagome lattice, among the the Dirac Spin liquid is a promising candidate. We here in the FFC group are studying different theoretical models using various numerical/analytical approaches in light of recent experiments done on Herbertsmithite.

Publications

My papers on
arXiv

Recent Publications :
1.)"Valence-bond crystals in the kagome spin-1/2 Heisenberg antiferromagnet : Symmetry classification and projected wave function study"
2.)"Projected wave function study of Z2 spin liquids on the kagome lattice for the spin-1/2 quantum Heisenberg antiferromagnet" ; "Supplementary material"
3.)"Valence-bond crystal in the extended kagome spin-1/2 quantum Heisenberg antiferromagnet : A variational Monte Carlo approach"

Conferences/Workshops attended, Visits,Talks given

• Talk given at the Indian Institute of Technology Madras, Chennai, India. 7 Aug, 2012. Hosted by Prof. Suresh Govindarajan.
• International Workshop "From Quantum Foundations to Quantum Fluids" : University Paul Sabatier, Toulouse, France. 4-6 April, 2012.
• Invited talk at Institute for Theoretical Physics, Technical University of Dresden, Germany. 7 Feb, 2012. Hosted by Prof. Dr. Matthias Vojta.
• Invited talk at International Center for Theoretical Physics (ICTP), Trieste, Italy. 2 Feb, 2012.
• Invited talk at Institute for Theoretical Physics, University of Braunschweig, Germany. 27 Jan, 2012. Hosted by Prof. Dr. Wolfram Brenig.
• Invited talk at Institute for Theoretical Physics, University of Stuttgart, Germany. 16 Jan, 2012. Hosted by Prof. Dr. Alejandro Muramatsu.
• Visit to ETH (Swiss Federal Institute of Technology), Zurich (Switzerland), 5 Oct - 28 Oct, 2011. (hosted by Prof. Dr. Matthias Troyer)
• Workshop on Synergies between Field Theory and Exact Computational Methods in Strongly Correlated Quantum Matter : ICTP, Trieste (Italy), 24-29 July, 2011. Poster contribution on "Competing phases of the kagome S=1/2 quantum Heisenberg antiferromagnet"
• Talk given at LPT, Toulouse (France) on 15th July 2011 as part of mini-workshop on quantum magnetism (15-22 July, 2011). "Competing phases of the S=1/2 Kagome quantum Heisenberg antiferromagnet : A variational Monte Carlo approach. A gapless U(1) or a gapped Z2 spin liquid ?"
• Les Houches physics summer school- "Strongly correlated electronic systems, beyond Fermi liquid theory" : Les Houches (France), 11 - 21 April, 2011. - Poster contribution.
• Visit to SISSA (International School of Advanced Study), Trieste (Italy), 6 Feb - 20 February, 2011. (hosted by Federico Becca)
• ICTS Condensed Matter Programme 2010 : Infosys Campus, Mysore (India), 12 - 23 December, 2010.
• Invited talk at Institute of Mathematical Sciences(IMSc), Chennai (India) , 10th Aug 2010. - hosted by Prof. G. Baskaran "Competing Phases of Spin 1/2 QHAF on Kagome Lattice : A Variational Monte Carlo approach"
• Workshop on Emergence of New States of Matter in Magnetic Systems and Beyond : ICTP, Trieste (Italy), 5 - 9 July, 2010.
• Ecole Materiaux et interactions en Competition : Centre Paul Langevin, Aussois (France), 5 - 11 June, 2010. - Poster contribution.
• Perspectives in Highly Frustrated Magnetism : Max Planck Institute for Physics of Complex systems, Dresden (Germany), 19-23 April, 2010 - Acceptance of poster contribution.
• Visit to SISSA (International School of Advanced Study), Trieste (Italy), 13 Feb - 1 March, 2010. (hosted by Federico Becca)
• Magnetic Resonance in highly frustrated magnetic systems, Kranjska Gora (Slovenia), 1-4 Feb 2010.
• Novel Physics on the kagome network : January 18-20, 2010, Laboratoire de Physique des Solides, Orsay, Paris (France)