Author

Debasish Banerjee

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Preprint Sep 2026

Boundary Condition dependent Universality Classes on a Hyperbolic Lattice

We study the ferromagnetic Ising model on finite hyperbolic tessellations of Euclidean AdS$_2$ with open and wired boundary conditions. Because a finite fraction of spins remains at the boundary as the lattice grows, these conditions select distinct thermodynamic behaviours. In the $\{5,4\}$ tessellation, Monte-Carlo s...

P. Dey, Debasish Banerjee, Arnab Kundu et al. · 0 citations

Preprint Sep 2026

Investigating Interacting Fermionic Models with Locality-Preserving Qubit Encodings

We investigate the utility of the locality-preserving Derby-Klassen (DK) fermion-to-qubit mapping [arXiv:2003.06939] for variational quantum simulation of two-dimensional $t$-$V$ and Fermi-Hubbard models. The DK mapping preserves the locality of fermionic interactions with an enlarged Hilbert space, thereby requiring a...

Ashutosh Tripathi, Debasish Banerjee, Sandip Maiti et al. · 0 citations

Toward the real-time evolution of gauge-invariant Z 2 and U ð 1 Þ quantum link models on noisy intermediate-scale quantum hardware with error mitigation

This article benchmark the real-time dynamics of Z 2 and U ð 1 Þ gauge-invariant plaquette models using noisy intermediate-scale quantum (NISQ) hardware, specifically the superconducting-qubit-based quantum IBM Q computers.

E. Huffman, Miguel García Vera, Debasish Banerjee · 15 citations

Preprint Aug 2026

Spectral Fingerprints of Gauge Theories on a Quantum Computer

It is shown how this algorithm is able to take advantage of emerging dynamical circuit capabilities in near-term hardware to roughly halve the number required qubits, as well as how quantum readout error mitigation is trivial for this method.

Graham Van Goffrier, Debasish Banerjee, Bipasha Chakraborty et al. · 0 citations