APS : Qutrit quantum battery: comparing different charging protocols

Gemme, Giulia; Ferraro, Dario; Grossi, Michele; Sassetti, Maura; Vallecorsa, Sofia

doi:10.1103/PhysRevResearch.6.023091

Article
Report number	arXiv:2306.14537
Title	Qutrit quantum battery: comparing different charging protocols
Author(s)	Gemme, Giulia (Genoa U.) ; Grossi, Michele (CERN) ; Vallecorsa, Sofia (CERN) ; Sassetti, Maura (Genoa U.) ; Ferraro, Dario (Genoa U.)
Publication	2024-04-24
Imprint	2023-06-26
Number of pages	22
Note	22 pages, 11 figures
In:	Phys. Rev. Res. 6 (2024) 023091
DOI	10.1103/PhysRevResearch.6.023091 (publication)
Subject category	cond-mat.mes-hall ; quant-ph ; General Theoretical Physics
Abstract	Motivated by recent experimental observations carried out in superconducting transmon circuits, we compare two different charging protocols for three-level quantum batteries based on time dependent classical pulses. In the first case the complete charging is achieved through the application of two sequential pulses, while in the second the charging occurs in a unique step applying the two pulses simultaneously. Both protocols are analytically solvable leading to a complete control on the dynamics of the quantum system. According to this it is possible to determine that the latter approach is characterized by a shorter charging time, and consequently by a greater charging power. We have then tested these protocols on IBM quantum devices based on superconducting circuits in the transmon regime. The minimum achieved charging time represents the fastest stable charging reported so far in solid state quantum batteries.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2024 authors (License: CC BY 4.0)

$Blue curve: theoretical behaviour of the energy $E^{(2)}$ stored into the qubit QB (in units of $\Delta$) as a function of $t$ (in units of $t_{m}$) and with initial condition $\ket{\psi(t)}=|0\rangle$ ($a=1$ and arbitrary $\phi$ in~(\ref{Psi_general})). Horizontal grey line indicates a QB charging of $E^{(2)}_{thr}=0.95\Delta$, while the vertical grey line is in correspondence of the charging time $t_{c}=0.59t_m$. Here we are considering $\theta_m=\pi$.$ $Blue curves: theoretical behaviour of the energy $E^{(2)}$ stored into the qubit QB (in units of $\Delta$) as a function of $t$ (in units of $t_{m}$) and with $a=0.98$, $\phi=0$ (a) and $a=0.96$, $\phi=0$ (b) respectively. We have considered $E^{(2)}_{thr}=0.95\Delta$ in both panels (horizontal grey lines). This leads to $t_{c}=0.61 t_m$ (a) and $t_{c}=0.63 t_m$ (b) respectively (vertical grey lines). Here we are considering $\theta_m=\pi$.$ $Blue curves: theoretical behaviour of the energy $E^{(2)}$ stored into the qubit QB (in units of $\Delta$) as a function of $t$ (in units of $t_{m}$) and with $a=0.98$, $\phi=0$ (a) and $a=0.96$, $\phi=0$ (b) respectively. We have considered $E^{(2)}_{thr}=0.95\Delta$ in both panels (horizontal grey lines). This leads to $t_{c}=0.61 t_m$ (a) and $t_{c}=0.63 t_m$ (b) respectively (vertical grey lines). Here we are considering $\theta_m=\pi$.$ Show more plots

Corresponding record in: Inspire

Zurück zur Suche

Datensatz erzeugt am 2023-11-28, letzte Änderung am 2024-09-06

Ähnliche Datensätze

Volltext:
2306.14537 -

PDF
Publication -

PDF

Zum persönlichen Korb hinzufügen
Export als BibTeX, MARC, MARCXML, DC, EndNote, NLM, RefWorks

CERN Document Server

Access articles, reports and multimedia content in HEP

Main menu

CERN Accelerating science