241 citations · 1.4k across the 28 of their papers we have counts for
6 papers · 1 filter
Quantized refrigerator for an atomic cloud
Wolfgang Niedenzu, Igor Mazets, Gershon Kurizki +1
We propose to implement a quantized thermal machine based on a mixture of two atomic species. One atomic species implements the working medium and the other implements two (cold an…
Collectively enhanced thermalization via multiqubit collisions
Angsar Manatuly, Wolfgang Niedenzu, Ricardo Román-Ancheyta +3
We investigate the evolution of a target qubit caused by its multiple random collisions with -qubit clusters. Depending on the cluster state, the evolution of the target qubit m…
Cooperative many-body enhancement of quantum thermal machine power
Wolfgang Niedenzu, Gershon Kurizki
We study the impact of cooperative many-body effects on the operation of periodically-driven quantum thermal machines, particularly heat engines and refrigerators. In suitable geom…
Are quantum thermodynamic machines better than their classical counterparts?
Arnab Ghosh, Victor Mukherjee, Wolfgang Niedenzu +1
Interesting effects arise in cyclic machines where both heat and ergotropy transfer take place between the energising bath and the system (the working fluid). Such effects correspo…
Thermodynamic principles and implementations of quantum machines
Arnab Ghosh, Wolfgang Niedenzu, Victor Mukherjee +1
The efficiency of cyclic heat engines is limited by the Carnot bound. This bound follows from the second law of thermodynamics and is attained by engines that operate between two t…
Temperature control in dissipative cavities by entangled dimers
Ceren B. Dağ, Wolfgang Niedenzu, Fatih Ozaydin +2
We show that the temperature of a cavity field can be drastically varied by its interaction with suitably-entangled atom pairs (dimers) traversing the cavity under realistic atomic…