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20222026
most citedStrong Hilbert space fragmentation via emergent quantum drums in two dimensions

19 citations · 29 across the 5 of their papers we have counts for

collaborators

5 papers

cond-mat.quant-gas2026

Dressed Floquet scars from protected zero modes in a Rydberg chain

Saptadip Roy, Bhaskar Mukherjee, K. Sengupta +1

We show that a symmetry-protected Floquet nullspace can host anomalous many-body eigenstates that are obtained by projecting structured parent states onto an exact zero-quasienergy…

quant-ph2024★ 4 cited

Scar-induced imbalance in staggered Rydberg ladders

Mainak Pal, Madhumita Sarkar, K. Sengupta +1

We demonstrate that the kinematically-constrained model of Rydberg atoms on a two-leg ladder with staggered detuning, , has quantum many-body scars (QMBS) in its spectr…

cond-mat.str-el2023

Emergent criticality in a constrained boson model

Anirudha Menon, Anwesha Chattopadhyay, K. Sengupta +1

We show, via explicit computation on a constrained bosonic model, that the presence of subsystem symmetries can lead to a quantum phase transition (QPT) where the critical point ex…

cond-mat.stat-mech2023★ 6 cited

Emergence of a quasi-ergodic steady state in a dissipative Tavis-Cummings array

Debabrata Mondal, K. Sengupta, Subhasis Sinha

In an atom-photon interacting system described by Tavis Cummings Hubbard (TCH) model, we demonstrate the emergence of a quasi-steady state in a dissipative environment that exhibit…

cond-mat.stat-mech2022★ 19 cited

Strong Hilbert space fragmentation via emergent quantum drums in two dimensions

Anwesha Chattopadhyay, Bhaskar Mukherjee, K. Sengupta +1

We introduce a disorder-free model of spins on the square lattice in a constrained Hilbert space where two up-spins are not allowed simultaneously on any two neighboring si…