3 citations · 8 across the 16 of their papers we have counts for
5 papers · 1 filter
Towards minimal conditions for ergotropy injection in open quantum systems
Deependra Singh, Debarupa Saha, Ujjwal Sen
Interactions between a quantum system and its environment can inject ergotropy into the system, raising the question of the minimal dimensionality and physical resources required f…
Metrological quantum-to-classical crossover in the volume of a noisy quasiperiodic lattice
Priya Ghosh, Debarupa Saha, Ujjwal Sen +1
Localization-delocalization transitions have recently been proposed for building a class of efficient quantum many-body critical sensors. This work scrutinizes metrological perform…
Optimal work extraction in measurement-based quantum Otto engines: Non-adiabaticity and generalized measurements can be beneficial
Arunabha Das, Sayan Mondal, Debarupa Saha +1
Measurement-based quantum heat engines have attracted significant interest as alternatives to conventional thermal engines, as they replace the hot thermal reservoir with quantum m…
Surpassing thermal-state limit in thermometry via non-completely positive quantum encoding
Anindita Sarkar, Paranjoy Chaki, Debarupa Saha +1
Conventional quantum thermometry assumes completely positive (CP) encoding maps, where the probe is initially uncorrelated with the environment. We consider realistic scenarios wit…
Precision Enhancement in Transient Quantum Thermometry:Cold-Probe Bias and Its Removal
Debarupa Saha, Ujjwal Sen
We unveil a fundamental temperature bias in transient quantum thermometry under Markovian dynamics. For qubit probes evolving in a thermal Markovian environment, we prove that tran…