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Publication and preprint updates

Frustrating the Kondo effect might hold the key to the Mott MIT in ∞ dimensions: our new work just got published at New Journal of Physics!

NOV 2023.   We provide a Hamiltonian-based explanation of the DMFT-based phenomenology of the infinite dimensional Hubbard model, obtaining novel insights on the Mott MIT in the process.  Learn More

Can entanglement scaling lead to universality across various metals or insulators?

MAY 2023.   In a work that appeared recently at New Journal of Physics, Patra et al classify various emergent phases of matter in terms of entanglement measures.  Learn More

A simple graph-theoretic construct outlines much of the physics of the multichannel Kondo effect!

MAY 2023.   In this work, we elucidate the importance of ground-state degeneracy and frustration in determining the physics of the multichannel Kondo model.  Learn More

Can space emerge from quantum mechanics? We demonstrate this in a simple model of fermions!

FEB 2023.   We show the emergence of an additional dimension arising out of the scaling of multipartite entanglement upon applying RG transformations on 2D noninteracting electrons placed on a torus.  Learn More

Our recent work on entanglement of topologically ordered systems has been published in Phys. Rev. A

JUN 2022.   In this work, we investigate the nature of the general (N-)partite information and quantum correlation of a topologically ordered ground state.  Learn More

Our work on the entanglement of the doped 2D Hubbard model got published in J. Phys. Cond. Mat.

MAY 2022.   In this work, we cast the renormalization group flows of the 2D Hubbard model in terms of entanglement evolution, revealing holographic features along the way.  Learn More

Our work on the single-channel Kondo problem has been published in Phys. Rev. B

MAR 2022.   We analyze the single-channel Kondo model using the recently developed unitary renormalization-group (URG) method and obtain a comprehensive understanding of the Kondo screening cloud.  Learn More

Our work on the Cooper pair insulator has been published in Phys. Rev. B

NOV 2021.   We present a microscopic derivation of the Cooper-pair insulator (CPI), a topologically ordered counterpart of the (s-)wave superconductor.  Learn More

Miscellaneous news

  • We welcome Sukalyan Deb, our new PhD student, into the group.  Learn More
    AUG 22, 2023

  • Welcome, Aashish, to EPQM@IISER Kolkata!  Learn More
    JUN 30, 2023

  • Congratulations, Abhirup, on presenting your work at PP65@IISER Kolkata!  Learn More
    JUN 28, 2023

  • Congratulations, Siddhartha Patra, on receiving your Ph.D at the 10th convocation of IISER Kolkata!  Learn More
    JUN 26, 2023

  • Congratulations Debraj, on your first poster presentation (at DPS Day 2023) as part of EPQM!  Learn More
    MAR 18, 2023

  • Congratulations Abhirup, on winning a Best Poster award at DPS Day 2023!  Learn More
    MAR 18, 2023

  • We welcome Arnabesh Samadder, our new PhD student, into the group.  Learn More
    JAN 01, 2023

  • Siddhartha Patra has successfully defended his thesis.  Learn More
    SEP 12, 2022

  • We welcome Debraj Debata, our new IPhD student, into the group.  Learn More
    JUL 19, 2022