Srijan Kumar

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hep-th2025

High to low temperature: $O (N)$ model at large $N$

Justin R. David, Srijan Kumar

We study the $O (N)$ vector model for scalars with quartic interaction at large $N$ on $S^{1} \times S^{2}$ without the singlet constraint. The non-trivial fixed point of the model is de…

hep-th2025

Large $N$ Wess-Zumino model at finite temperature and large chemical potential in $3 d$

Srijan Kumar

We consider the supersymmetric Wess-Zumino model at large $N$ in $(2 + 1)$ dimension. We introduce a chemical potential( $I^¼$ ) at finite temperature( $T$ ). The non-trivial fixed point…

hep-th2025

The large $N$ vector model on $S^{1} \times S^{2}$

Justin R. David, Srijan Kumar

We develop a method to evaluate the partition function and energy density of a massive scalar on a 2-sphere of radius $r$ and at finite temperature $I^^{2}$ as power series in $\fracÎ²…

hep-th2024

One point functions in large $N$ vector models at finite chemical potential

Justin R. David, Srijan Kumar

We evaluate the thermal one point function of higher spin currents in the critical model of $U (N)$ complex scalars interacting with a quartic potential and the $U (N)$ Gross-Neveu m…

High to low temperature: O(N) model at large N

Large N Wess-Zumino model at finite temperature and large chemical potential in 3d

The large N vector model on S1×S2

One point functions in large N vector models at finite chemical potential

High to low temperature: $O (N)$ model at large $N$

Large $N$ Wess-Zumino model at finite temperature and large chemical potential in $3 d$

The large $N$ vector model on $S^{1} \times S^{2}$

One point functions in large $N$ vector models at finite chemical potential