All Outputs (4)

Rydberg-ion flywheel for quantum work storage (2023)
Journal Article
Martins, W. S., Carollo, F., Li, W., Brandner, K., & Lesanovsky, I. (2023). Rydberg-ion flywheel for quantum work storage. Physical Review A, 108(5), Article L050201. https://doi.org/10.1103/PhysRevA.108.L050201

Trapped ions provide a platform for quantum technologies that offers long coherence times and high degrees of scalability and controllability. Here, we use this platform to develop a realistic model of a thermal device consisting of two laser-driven,... Read More about Rydberg-ion flywheel for quantum work storage.

Thermodynamics of permutation-invariant quantum many-body systems: A group-theoretical framework (2023)
Journal Article
Yadin, B., Morris, B., & Brandner, K. (2023). Thermodynamics of permutation-invariant quantum many-body systems: A group-theoretical framework. Physical Review Research, 5(3), Article 033018. https://doi.org/10.1103/physrevresearch.5.033018

Quantum systems of indistinguishable particles are commonly described using the formalism of second quantization, which relies on the assumption that any admissible quantum state must be either symmetric or antisymmetric under particle permutations.... Read More about Thermodynamics of permutation-invariant quantum many-body systems: A group-theoretical framework.

Thermodynamic geometry of ideal quantum gases: a general framework and a geometric picture of BEC-enhanced heat engines (2023)
Journal Article
Eglinton, J., Pyhäranta, T., Saito, K., & Brandner, K. (2023). Thermodynamic geometry of ideal quantum gases: a general framework and a geometric picture of BEC-enhanced heat engines. New Journal of Physics, 25(4), Article 043014. https://doi.org/10.1088/1367-2630/acc966

Thermodynamic geometry provides a physically transparent framework to describe thermodynamic processes in meso- and micro-scale systems that are driven by slow variations of external control parameters. Focusing on periodic driving for thermal machin... Read More about Thermodynamic geometry of ideal quantum gases: a general framework and a geometric picture of BEC-enhanced heat engines.

Lee-Yang theory of Bose-Einstein condensation (2023)
Journal Article
Brange, F., Pyhäranta, T., Heinonen, E., Brandner, K., & Flindt, C. (2023). Lee-Yang theory of Bose-Einstein condensation. Physical Review A, 107(3), Article 033324. https://doi.org/10.1103/physreva.107.033324

Bose-Einstein condensation happens as a gas of bosons is cooled below its transition temperature, and the ground state becomes macroscopically occupied. The phase transition occurs in the thermodynamic limit of many particles. However, recent experim... Read More about Lee-Yang theory of Bose-Einstein condensation.