6 citations · 12 across the 9 of their papers we have counts for
9 papers
Quantum state localization in dipole-dipole interacting disordered networks
Pritam Chattopadhyay, Saikat Sur, Avijit Misra +3
We study the localization of excitations in positionally disordered spin or atom networks coupled via the realistic resonant dipole-dipole interaction (RDDI), which does not confor…
Volume Law and Universality of Entanglement Entropy in Random Graph Fermi Systems
Saikat Sur
We study the ground-state entanglement entropy of free fermions on random graphs. We first establish a general criterion for the volume law on random graphs, based on the spectral…
Automorphism-Induced Entanglement Bounds in Many-Body Systems
Saikat Sur
We derive an upper bound on the maximum balanced bipartite entanglement entropy of ground states of many-body Hamiltonians defined on a graph, agnostic to any particular model, tha…
Control of Multipartite Entanglement through Anisotropy against Thermal Noise
Samudra Sur, Saikat Sur
Preserving multipartite entanglement in open many-body quantum systems is fundamentally limited by unavoidable environmental noise. We study the open-system dynamics of multipartit…
Collective purification of interacting quantum networks beyond symmetry constraints
Saikat Sur, Pritam Chattopadhyay, Arnab Chakrabarti +5
Following any quantum information processing protocol, it is essential to reset a mixed state of a many-body interacting spin-network to the computational-zero pure state. This tas…
Molecular Processes as Quantum Information Resources
Saikat Sur, Pritam Chattopadhyay, Gershon Kurizki
In this contribution to Abraham Nitzan's Festschrift, we present a perspective of theoretical research over the years that has pointed to the potential of molecular processes to ac…
Generic Two-Mode Gaussian States as Quantum Sensors
Pritam Chattopadhyay, Saikat Sur, Jonas F. G. Santos
Gaussian quantum channels constitute a cornerstone of continuous-variable quantum information science, underpinning a wide array of protocols in quantum optics and quantum metrolog…
Sensing multiatom networks in cavities via photon-induced excitation resonance
Pritam Chattopadhyay, Avijit Misra, Saikat Sur +2
We explore the distribution in space and time of a single-photon excitation shared by a network of dipole-dipole interacting atoms that are also coupled to a common photonic field…
Many-body quantum thermal machines in a Lieb-kagome Hubbard model
Saikat Sur, Pritam Chattopadhyay, Madhuparna Karmakar +1
Quantum many-body systems serve as a suitable working medium for realizing quantum thermal machines (QTMs) by offering distinct advantages such as cooperative many-body effects, an…