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20132024
most citedChiral crossover in QCD at zero and non-zero chemical potentials

638 citations · 1.5k across the 41 of their papers we have counts for

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hep-th2024

Massless fermions in uniform flux background on : Vacuum quantum numbers from single-particle filled modes using lattice regulator

Nikhil Karthik, Rajamani Narayanan, Ray Romero

The quantum numbers of monopoles in in the presence of massless fermions have been analyzed using a uniform flux background in coupled to fermions. An analogous…

hep-th2018★ 18 cited

Scale-invariance and scale-breaking in parity-invariant three-dimensional QCD

Nikhil Karthik, Rajamani Narayanan

We present a numerical study of three-dimensional two-color QCD with and 12 flavors of massless two-component fermions using parity-preserving improved Wilson-Dirac…

hep-th2017★ 26 cited

Flavor and topological current correlators in parity-invariant three-dimensional QED

Nikhil Karthik, Rajamani Narayanan

We use lattice regularization to study the flow of the flavor-triplet fermion current central charge from its free field value in the ultraviolet limit to its conformal val…

hep-th2016★ 83 cited

Scale-invariance of parity-invariant three-dimensional QED

Nikhil Karthik, Rajamani Narayanan

We present numerical evidences using overlap fermions for a scale-invariant behavior of parity-invariant three-dimensional QED with two flavors of massless two-component fermions.…

hep-th2015★ 10 cited

Phase of the fermion determinant in QED_3 using a gauge invariant lattice regularization

Nikhil Karthik, Rajamani Narayanan

We use canonical formalism to study the fermion determinant in different three dimensional abelian gauge field backgrounds that contain non-zero magnetic and electric flux in order…

hep-th2014

The equation of state of two dimensional Yang-Mills theory

Nikhil Karthik, Rajamani Narayanan

We study the pressure, , of SU() gauge theory on a two-dimensional torus as a function of area, . We find a cross-over scale that separates the system on a large circl…