11 papers
Multipartite synchronization residuals in driven-dissipative spin networks
Jatin Ghildiyal, Shubhrangshu Dasgupta, Asoka Biswas
We introduce a phase-space measure of quantum synchronization that quantifies relative phase localization for two-qubit and three-qubit systems. This measure is built from the firs…
Enhanced quantum illumination of a lossy target: A sequential interaction model
Shilpi Srivastava, Shubhrangshu Dasgupta
Quantum illumination (QI) exploits quantum correlations to detect weakly reflecting targets embedded in noisy environments with higher sensitivity than classical illumination (CI).…
Structured-Light Magnetometry in a Coherently Controlled Atomic Medium
Parkhi Bhardwaj, Shubhrangshu Dasgupta
A structured-light-based approach for detecting magneto-optical rotation is presented, in which polarization rotation is mapped onto a directly observable spatial degree of freedom…
Quantum synchronization between two strongly driven YIG spheres mediated via a microwave cavity
Jatin Ghildiyal, Shubhrangshu Dasgupta, Asoka Biswas
We present a theoretical study of synchronization between two strongly driven magnon modes indirectly coupled via a single-mode microwave cavity. Each magnon mode, hosted in separa…
Entanglement dynamics of Multi-Level Atoms embedded in Photonic Crystals: Leveraging Resonant Dipole-Dipole Interactions and Quantum Interference
Nancy Ghangas, Shubhrangshu Dasgupta
We present a comprehensive investigation of entanglement dynamics in multi-level V-type atomic systems embedded within photonic crystals. We mainly focus on the synergistic roles o…
Gain-Assisted and Dynamically Controlled Optical Bistability for Quantum Logic Gate Applications
Parkhi Bhardwaj, Poonam Yadav, Bodhaditya Santra +1
The propagation of a probe field in an N-type four level cold atomic system is investigated under the influence of multiple coherent fields. Coherent control of quantum interferenc…