activity
20212025
most citedFlat-band-based multifractality in the all-band-flat diamond chain

31 citations · 58 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.mes-hall2025

Escaping AB caging via Floquet engineering: photo-induced long-range interference in an all-band-flat model

Aamna Ahmed, Mónica Benito, Beatriz Pérez-González

Flat-band lattices hosting compact localized states are highly sensitive to external modulation, and the tailored design of a perturbation to imprint specific features becomes rele…

cond-mat.dis-nn2025★ 5 cited

Supervised and unsupervised learning of the many-body critical phase, phase transitions, and critical exponents in disordered quantum systems

Aamna Ahmed, Nilanjan Roy

In this work, we begin by questioning the existence of a new kind of nonergodic extended phase, namely, the many-body critical (MBC) phase in finite systems of an interacting quasi…

cond-mat.dis-nn2023★ 3 cited

Phase classification in the long-range Harper model using machine learning

Aamna Ahmed, Abee Nelson, Ankur Raina +1

In this work, we map the phase diagrams of one-dimensional quasiperiodic models using artificial neural networks. We observe that the multi-class classifier precisely distinguishes…

cond-mat.dis-nn2023★ 5 cited

Interplay of many-body interactions and quasiperiodic disorder in the all-band-flat diamond chain

Aamna Ahmed, Nilanjan Roy, Auditya Sharma

We study the effects of quasiperiodic Aubry-André (AA) disorder and interactions on a one-dimensional all-band-flat (ABF) diamond chain. We consider the application of disorder in…

cond-mat.dis-nn2022★ 31 cited

Flat-band-based multifractality in the all-band-flat diamond chain

Aamna Ahmed, Ajith Ramachandran, Ivan M. Khaymovich +1

We study the effect of quasiperiodic Aubry-André disorder on the energy spectrum and eigenstates of a one-dimensional all-bands-flat (ABF) diamond chain. The ABF diamond chain poss…

cond-mat.dis-nn2021★ 14 cited

Dynamics of spectral correlations in the entanglement Hamiltonian of the Aubry-André-Harper model

Aamna Ahmed, Nilanjan Roy, Auditya Sharma

We numerically study the evolution of spectral correlations in the entanglement Hamiltonian (EH) of non-interacting fermions in the Aubry-André-Harper (AAH) model. We analyze the t…