The transverse field Ising and XY models (the simplest quantum spin models) provide the
organising principle for the rich variety of interconnected subjects which are covered in this …

The presence of algebraically decaying long-range interactions may alter the critical as well
as topological behaviour of a quantum many-body systems. However, when the interaction …

This short review explores the physics journey of Professor Amit Dutta, illuminating his
collaborative contributions with students and peers. We mainly focus on standard …

Realizing topological insulators is of great current interest because of their remarkable
properties and possible future applications. There are recent proposals based on Floquet …

We explore the nonequilibrium response of Chern insulators. Focusing on the Haldane
model, we study the dynamics induced by quantum quenches between topological and …

Preparing an integrable system in a mixed state described by a thermal density matrix, we
subject it to a sudden quench and explore the subsequent unitary dynamics. To address the …

We study the role of long-range interactions (more precisely, the long-range
superconducting gap term) on the nonequilibrium dynamics considering a long-range p …

We study the topological properties of one-dimensional systems undergoing unitary time
evolution. We show that symmetries possessed both by the initial wave function and by the …

Dynamical quantum phase transitions (DQPTs) manifested in the nonanalyticities in the
temporal evolution of a closed quantum system generated by the time-independent final …

In the sequence of quenches to either nontopological phases or other topological phases,
we study the stability of Majorana fermions at the edges of a two-dimensional topological …