6 papers
Surpassing Carnot efficiency with relativistic motion
Dimitris Moustos, Obinna Abah
Relativistic thermal devices offer a unique platform for understanding the interplay between motion, quantum fields, and thermodynamics, revealing phenomena inaccessible to station…
Time optimal quantum state engineering
Sam Edmunds, Obinna Abah
The efficient generation of highly nonclassical quantum states is essential for emerging quantum technologies, yet it remains challenging due to decoherence and the long preparatio…
Quantum Otto machine with -deformed Pöschl-Teller oscillator
Collins O. Edet, Norshamsuri Ali, Rosdisham Endut +1
We study the impact of the potential parameters of the q-deformed modified Pöschl-Teller potential on the thermodynamic performance of a quantum Otto cycle, where the -deformed…
Optimal measurement-based quantum thermal machines in a finite-size system
Chinonso Onah, Obinna Uzoh, Obinna Abah
We present a measurement-based quantum thermal machine that extracts work from the back-action of generalized quantum measurements whose working medium is a coupled two-level quant…
Thermodynamic uncertainty relations for relativistic quantum thermal machines
Dimitris Moustos, Obinna Abah
We investigate a two-qubit SWAP thermal machine -- a streamlined analogue of the four-stroke Otto cycle -- whose working medium comprises inertially moving Unruh-DeWitt qubit detec…
Quantum thermal machines in BTZ black hole spacetime
Dimitris Moustos, Obinna Abah
We investigate an Otto thermodynamic cycle with a qubit Unruh-DeWitt detector as the working medium, coupled to a massless, conformally coupled scalar quantum field in the Hartle-H…