4 papers
Enhanced quantum thermometry near a dissipative phase transition in a driven Kerr cavity
Chayan Purkait, Bimalendu Deb
We investigate quantum thermometry in a driven--dissipative Kerr cavity coupled to a thermal reservoir. The system exhibits a finite-size precursor of a dissipative phase transitio…
Asymptotic freedom in the dephased charging of quantum batteries
Chayan Purkait, B. Prasanna Venkatesh, Gentaro Watanabe
Quantum batteries, small-scale energy storage devices based on quantum systems, offer the potential for enhanced charging performance through quantum effects such as coherence and…
Quasi-probability distribution of work in a measurement-based quantum Otto engine
Chayan Purkait, Shubhrangshu Dasgupta, Asoka Biswas
We study the work statistics of a measurement-based quantum Otto engine, where quantum non-selective measurements are used to fuel the engine, in a coupled spin working system (WS)…
Anisotropy-assisted thermodynamic advantage of a local-spin thermal machine
Chayan Purkait, Suman Chand, Asoka Biswas
We study quantum Otto thermal machines with a two-spin working system coupled by anisotropic interaction. Depending on the choice of different parameters, the quantum Otto cycle ca…