143 citations · 475 across the 20 of their papers we have counts for
20 papers
Efficient Estimation of Multiple Temperatures via a Collisional Model
Srijon Ghosh, Sagnik Chakraborty, Rosario Lo Franco
We present a quantum thermometric protocol for the estimation of multiple temperatures within the collisional model framework. Employing the formalism of multiparameter quantum met…
Optimal phase estimation in the presence of correlated dephasing
Srijon Ghosh, Arkadiusz Kobus, Stanisław Kurdziałek +1
We investigate optimal metrological protocols for phase estimation in the presence of correlated dephasing noise, including spin-squeezed states sensing strategies as well as paral…
Operational Ergotropy: suboptimality of the geodesic drive
Pritam Halder, Srijon Ghosh, Saptarshi Roy +1
We put forth a notion of optimality for extracting ergotropic work, derived from an energy constraint governing the necessary dynamics for work extraction in a quantum system. With…
Dimensional gain in sensing through higher-dimensional quantum spin chain
Shivansh Singh, Leela Ganesh Chandra Lakkaraju, Srijon Ghosh +1
Recent breakthroughs in quantum technology pave the way for extensive utilization of higher-dimensional quantum systems, which outperform their qubit counterparts in terms of capab…
Quantum-enhanced sensing with variable-range interactions
Monika Mothsara, Leela Ganesh Chandra Lakkaraju, Srijon Ghosh +1
The typical bound on parameter estimation, known as the standard quantum limit (SQL), can be surpassed by exploiting quantum resources such as entanglement. To estimate the magneti…
Framework of dynamical transitions from long-range to short-range quantum systems
Leela Ganesh Chandra Lakkaraju, Srijon Ghosh, Debasis Sadhukhan +1
A quantum many-body system undergoes phase transitions of distinct species with variations of local and global parameters. We propose a framework in which a dynamical quantity can…