The Energetic Cost of Work Extraction - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2020

The Energetic Cost of Work Extraction

Juliette Monsel
Marco Fellous-Asiani
Benjamin Huard

Résumé

We analyze work extraction from a qubit into a waveguide (WG) acting as a battery, where work is the coherent component of the energy radiated by the qubit. The process is stimulated by a wave packet whose mean photon number (the battery’s charge) can be adjusted. We show that the extracted work is bounded by the qubit’s ergotropy, and that the bound is saturated for a large enough battery’s charge. If this charge is small, work can still be extracted. Its amount is controlled by the quantum coherence initially injected in the qubit’s state, that appears as a key parameter when energetic resources are limited. This new and autonomous scenario for the study of quantum batteries can be implemented with state-of-the-art artificial qubits coupled to WGs.
Fichier principal
Vignette du fichier
PhysRevLett.124.130601.pdf (591.02 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-02525297 , version 1 (25-08-2023)

Identifiants

Citer

Juliette Monsel, Marco Fellous-Asiani, Benjamin Huard, Alexia Auffèves. The Energetic Cost of Work Extraction. Physical Review Letters, 2020, 124 (13), pp.130601. ⟨10.1103/PhysRevLett.124.130601⟩. ⟨hal-02525297⟩
98 Consultations
14 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More