13 citations · 22 across the 7 of their papers we have counts for
9 papers
Krylov Complexity and Quantum Many-body Scars in Non-Hermitian Kinetically Constrained Models
Arkaprava Sil, Rudraksh Kaushik, Souvik Kundu +2
Thermalization in closed quantum systems and its breakdown are central to understanding the emergence of statistical behavior in isolated many-body systems. Kinetic constraints can…
Pulse Engineering of Quantum Many-Body Dynamics: Emergent Scar States, Entanglement, and Nonstabilizerness
Prasant Mallik, Arkaprava Sil, Sudipto Singha Roy
Understanding and coherently controlling the properties of interacting quantum many-body systems is a central challenge in non-equilibrium quantum physics. While in the past decade…
Observable signatures of exceptional points from left-right eigenstate distinction
Leela Ganesh Chandra Lakkaraju, Soumik Bandyopadhyay, Sudipto Singha Roy +1
Non-Hermitian quantum systems exhibit qualitatively distinct physical behavior compared to Hermitian systems, a prime example being spectral singularities known as exceptional poin…
Resource generation and dynamical complexities in open random quantum circuits
Paranjoy Chaki, Arkaprava Sil, Priya Ghosh +2
Realistic quantum devices are inherently open and often involve environments with memory. Here, we investigate quantum resource generation in two classes of random circuits, namely…
The hyperlink representation of entanglement and the inclusion-exclusion principle
Silvia N. Santalla, Sudipto Singha Roy, Germán Sierra +1
The entanglement entropy (EE) of any bipartition of a pure state can be approximately expressed as a sum of entanglement links (ELs). In this work, we introduce their exact extensi…
Quantum Complexity in Rule-Based Constrained Many-Body Models: Scars, Fragmentation, and Chaos
Arkaprava Sil, Sudipto Singha Roy
Kinetic constraints in quantum many-body systems strongly restrict the accessible Hilbert space, giving rise to highly nontrivial dynamical behavior. In recent years, such systems…
Genuine Multipartite Entanglement in Quantum Optimization
Gopal Chandra Santra, Sudipto Singha Roy, Daniel J. Egger +1
The ability to generate bipartite entanglement in quantum computing technologies is widely regarded as pivotal. However, the role of genuinely multipartite entanglement is much les…
Genuine multipartite entanglement in a one-dimensional Bose-Hubbard model with frustrated hopping
Sudipto Singha Roy, Leon Carl, Philipp Hauke
Frustration and quantum entanglement are two exotic quantum properties in quantum many-body systems. However, despite several efforts, an exact relation between them remains elusiv…
Simulating violation of causality using a topological phase transition
Sudipto Singha Roy, Anindita Bera, Germán Sierra
We consider a topological Hamiltonian and establish a correspondence between its eigenstates and the resource for a causal order game introduced in Ref. [1] known as process matrix…