5 papers · 1 filter
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, StanisÅaw KurdziaÅek +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…
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…
Multimode advantage in continuous variable quantum battery
Tanoy Kanti Konar, Ayan Patra, Rivu Gupta +2
We provide an architecture for a multimode quantum battery (QB) based on the framework of continuous variable (CV) systems. We examine the performance of the battery by using a gen…
Mimicking quantum correlation of a long-range Hamiltonian by finite-range interactions
Leela Ganesh Chandra Lakkaraju, Srijon Ghosh, Debasis Sadhukan +1
The quantum long-range extended Ising model possesses several striking features that cannot be observed in the corresponding short-range model. We report that the pattern obtained…