| Texto completo | |
| Autor(es): |
Arjmandi, Mohammad B.
;
Mohammadi, Hamidreza
;
Santos, Alan C.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW E; v. 105, n. 5, p. 8-pg., 2022-05-10. |
| Resumo | |
One of the most important devices emerging from quantum technology are quantum batteries. However, self-discharging, the process of charge wasting of quantum batteries due to decoherence phenomenon, limits their performance, measured by the concept of ergotropy and half-life time of the quantum battery. The effects of local field fluctuation, introduced by the disorder term in the Hamiltonian of the system, on the performance of the quantum batteries is investigated in this paper. The results reveal that the disorder term could compensate disruptive effects of the decoherence, i.e., self-discharging, and hence improve the performance of the quantum battery via ???incoherent gain of ergotropy??? procedure. Adjusting the strength of the disorder parameter to a proper value and choosing a suitable initial state of the quantum battery, the amount of free ergotropy, defined with respect to the free Hamiltonian, could exceed the amount of initial stored ergotropy. In addition harnessing the degree of the disorder parameter could help to enhance the half-life time of the quantum battery. This study opens perspective to further investigation of the performance of quantum batteries that explore disorder and many-body effects. (AU) | |
| Processo FAPESP: | 21/10224-0 - Processamento de informação quântica com íons de Rydberg aprisionados |
| Beneficiário: | Alan Costa dos Santos |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado |
| Processo FAPESP: | 19/22685-1 - Efeito de memória e transição do regime de desordem fraco ao forte |
| Beneficiário: | Alan Costa dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |