Research and Publications

Broad Research Area

I work in theoretical quantum condensed matter physics, focusing on strongly correlated fermionic systems. These are systems in which large number of electrons behave in a cooperative manner; strong correlations among the electrons leads to the emergence of novel physics. Examples include insulators that arise out electronic repulsion (Mott insulators), exotic metallic phases that behave in inexplicable ways(strange metals), and phase transitions between such phases. I am a part of the Emergent Phenomena and Quantum Matter (EPQM) group. The group’s work involves studying correlated fermionic and spin models and obtaining novel emergent states of matter such as superconductivity, non-Fermi liquids, etc.

Feel free to check out my research statement for more technical details.

Publications and Preprints

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• Mott Criticality as the Confinement Transition of a Pseudogap-Mott Metal
  2025. arXiv:2507.17201. 
  Abhirup Mukherjee, S. R. Hassan, Anamitra Mukherjee, N. S. Vidhyadhiraja, A Taraphder, Siddhartha Lal

• Revealing the magnetic dimensional crossover in the Heisenberg ferromagnet CrSiTe$_3$ through picosecond strain pulses
  April, 2025. PRB 111, L140414. 
  Anjan Kumar N M, Soumya Mukherjee, Abhirup Mukherjee, Ajinkya Punjal, Shubham Purwar, Thirupathaiah Setti, Shriganesh Prabhu S., Siddhartha Lal, and N. Kamaraju

• Holographic entanglement renormalisation for fermionic quantum matter: geometrical and topological aspects
  June 2024. JPA: Math. Theor. 57 275401.  arXiv:2302.10590
  Abhirup Mukherjee, Siddhartha Patra, Siddhartha Lal

• Kondo frustration via charge fluctuations: a route to Mott localisation
  November 2023. NJP 25 113011.  arXiv:2302.02328
  Abhirup Mukherjee, N. S. Vidhyadhiraja, A. Taraphder, Siddhartha Lal

• Frustration shapes multi-channel Kondo physics: a star graph perspective
  May 2023. JPCM 35 315601.  arXiv:2205.00790
  Siddhartha Patra, Abhirup Mukherjee, Anirban Mukherjee, N. S. Vidhyadhiraja, A. Taraphder, Siddhartha Lal

• Unveiling the Kondo cloud: unitary RG study of the Kondo model
  February 2022. PRB 105, 085119.  arXiv:2111.10580
  Anirban Mukherjee, Abhirup Mukherjee, N. S. Vidhyadhiraja, A. Taraphder, Siddhartha Lal