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20202025
most citedFermionic criticality is shaped by Fermi surface topology: a case study of the Tomonaga-Luttinger liquid

8 citations · 21 across the 8 of their papers we have counts for

collaborators

8 papers

quant-ph2025

Accelerating Photonic Integrated Circuit Design: Traditional, ML and Quantum Methods

Alessandro Daniele Genuardi Oquendo, Ali Nadir, Tigers Jonuzi +4

Photonic Integrated Circuits (PICs) provide superior speed, bandwidth, and energy efficiency, making them ideal for communication, sensing, and quantum computing applications. Desp…

cond-mat.str-el2023

Holographic entanglement renormalisation for fermionic quantum matter

Abhirup Mukherjee, Siddhartha Patra, Siddhartha Lal

We demonstrate the emergence of a holographic dimension in a system of 2D non-interacting Dirac fermions placed on a torus, by studying the scaling of multipartite entanglement mea…

cond-mat.str-el2022★ 2 cited

Universal entanglement signatures of quantum liquids as a guide to fermionic criticality

Siddhartha Patra, Anirban Mukherjee, Siddhartha Lal

An outstanding challenge involves understanding the many-particle entanglement of liquid states of quantum matter that arise in systems of interacting electrons. The Fermi liquid (…

cond-mat.str-el2022★ 4 cited

Frustration shapes multi-channel Kondo physics: a star graph perspective

Siddhartha Patra, Abhirup Mukherjee, Anirban Mukherjee +3

We study the overscreened multi-channel Kondo (MCK) model using the recently developed unitary renormalization group (URG) technique. Our results display the importance of ground s…

math.CO2022

Graph Polynomial for Colored Embedded Graphs: A Topological Approach

Somnath Basu, Dhruv Bhasin, Siddhartha Lal +1

We study finite graphs embedded in oriented surfaces by associating a polynomial to it. The tools used in developing a theory of such graph polynomials are algebraic topological wh…

quant-ph2021

Unveiling topological order through multipartite entanglement

Siddhartha Patra, Somnath Basu, Siddhartha Lal

It is well known that the topological entanglement entropy () of a topologically ordered ground state in 2 spatial dimensions can be captured efficiently by measuring the…

cond-mat.str-el2021★ 7 cited

Origin of Topological Order in a Cooper Pair Insulator

Siddhartha Patra, Siddhartha Lal

We unveil the microscopic origin of the topologically ordered counterpart of the s-wave superconductor in this work. For this, we employ the recently developed unitary renormalisat…

cond-mat.str-el2020★ 8 cited

Fermionic criticality is shaped by Fermi surface topology: a case study of the Tomonaga-Luttinger liquid

Anirban Mukherjee, Siddhartha Patra, Siddhartha Lal

We perform a unitary renormalization group (URG) study of the 1D fermionic Hubbard model. The formalism generates a family of effective Hamiltonians and many-body eigenstates arran…