Highly efficient charging and discharging of three-level quantum batteries through shortcuts to adiabaticity

Dou, Fu-Quan; Wang, Yuan-Jin; Sun, Jianan

doi:10.1007/s11467-021-1130-5

Cited by 25 publications

(5 citation statements)

References 63 publications

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“…The author demonstrated that it is possible to charge the QB, under an external agent driving, from an initial thermal passive state to an active state in an open thermal bath (or environment), verifying that one could extract work from a thermal quantum system with a thermal passive state by the cyclical unitary operation. In addition, there have been many researches focused on different aspects, [41,[55][56][57][58][59][60] e.g., using the Floquet engineering to overcome the aging of a QB, [41] stabilizing open quantum batteries by structure engineering [57] and sequential measurements scheme, [58] identifying quantum speed-up via a collision charging scheme, [59] highly efficient charging and discharging through shortcuts to adiabaticity, [60] and so on. Though these researches have provided many interesting results in open QB, the rich underlying features and physical mechanism of open QB performing have not been demonstrated enough.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of charging performance of quantum battery via quantum coherence of bath

Yu¹,

Zhang²,

Li³

et al. 2023

Chinese Phys. B

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An open quantum battery (QB) model of a single qubit system charging in a coherent auxiliary bath (CAB) consisting of a series of independent coherent ancillae is considered. According to the collision charging protocol we derive a quantum master equation and obtain the analytical solution of QB in a steady state. We find that the full charging capacity (or the maximal extractable work (MEW)) of QB, in the weak QB-ancilla coupling limit, is positively correlated with the coherence magnitude of ancilla. Combining with the numerical simulations we compare with the charging properties of QB at finite coupling strength, such as the MEW, average charging power and the charging efficiency, when considering the bath to be a thermal auxiliary bath (TAB) and a CAB, respectively. We find that when the QB with CAB, in the weak coupling regime, is in fully charging, both its capacity and charging efficiency can go beyond its classical counterpart, and they increase with the increase of coherence magnitude of ancilla. In addition, the MEW of QB in the regime of relative strong coupling and strong coherent magnitude shows the oscillatory behavior with the charging time increasing, and the first peak value can even be larger than the full charging MEW of QB. This also leads to a much larger average charging power than that of QB with TAB in a short-time charging process. These features suggest that with the help of quantum coherence of CAB it becomes feasible to switch the charging schemes between the long-time slow charging protocol with large capacity and high efficiency and the short-time rapid charging protocol with highly charging power only by adjusting the coupling strength of QB-ancilla. This work clearly demonstrates that the quantum coherence of bath can not only serve as the role of “fuel” of QB to be utilized to improve the QB’s charging performance but also provide an alternative way to integrate the different charging protocols into a single QB.

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Section: Introductionmentioning

confidence: 99%

Enhancement of charging performance of quantum battery via quantum coherence of bath

Yu¹,

Zhang²,

Li³

et al. 2023

Chinese Phys. B

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“…To make the traditional adiabatic scheme more practical, a collection of methods referred as "shortcut-toadiabaticity" (STA) [59,60], for instance, counter-diabatic driving (equivalently, transitionless quantum algorithm) [61][62][63][64][65][66][67][68][69][70][71][72][73] and Invariant-based Inverse Engineering [74][75][76][77][78] have been proposed. The main idea is to reach the same final state as the slow adiabatic evolution, without necessarily tracking the instantaneous adiabatic eigenstate [59].…”

Section: Introductionmentioning

confidence: 99%

Effective Creation of Ultracold Deeply-Bound Molecules Via Non-Hermitian Stimulated Raman Shortcut-to-Adiabatic Passage

Zhang¹,

Naim²,

Deng³

et al. 2023

SSRN Journal

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“…Different from the traditional batteries, the QB usually refers to devices that utilize quantum degrees of freedom to store and transfer energy based on quantum thermodynamics [6,7]. Up to now, considerable attention has been mostly focused on the charging process including the QB's work-extraction capabilities [2,[8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23], stable charging [10][11][12][24][25][26][27], self-discharging [23,28] and dissipation charging [11,26,27,[29][30][31]. Alicki and Fannes suggested that "entangling unitary controls", i.e., unitary operations acting globally on the state of the N quantum cells, lead to better work extraction capabilities from the QB, when compared to unitary operations acting on each quantum cell separately [1].…”

Section: Introductionmentioning

confidence: 99%

Cavity-Heisenberg spin chain quantum battery

Dou,

Zhou,

Sun

2022

Preprint

Self Cite

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We propose a cavity-Heisenberg spin chain (CHS) quantum battery (QB) with the long-range interactions and investigate its charging process. The performance of the CHS QB is substantially improved compared to the Heisenberg spin chain (HS) QB. When the number of spins N ≫ 1, the quantum advantage α of the QB's maximum charging power can be obtained, which approximately satisfies a superlinear scaling relation Pmax ∝ N α . For the CHS QB, α can reach and even exceed 1.5, while the HS QB can only reach about α = 0.75. We find that the maximum stored energy of the CHS QB has a critical phenomenon. By analyzing the Wigner function, von Neumann entropy, and logarithmic negativity, we demonstrate that entanglement can be a necessary ingredient for QB to store more energy, but not sufficient.

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Highly efficient charging and discharging of three-level quantum batteries through shortcuts to adiabaticity

Cited by 25 publications

References 63 publications

Enhancement of charging performance of quantum battery via quantum coherence of bath

Enhancement of charging performance of quantum battery via quantum coherence of bath

Effective Creation of Ultracold Deeply-Bound Molecules Via Non-Hermitian Stimulated Raman Shortcut-to-Adiabatic Passage

Cavity-Heisenberg spin chain quantum battery

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