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Quantum batteries are miniature energy storage devices and play a very important role in quantum thermodynamics. In recent years, quantum batteries have been extensively studied, but limited in theoretical level. Here we report the…

Quantum battery (QB) is the miniature energy storage and release device and plays a crucial role in future quantum technology. Here, an implementation scheme of a QB is proposed on a superconducting circuit which is composed by $N$ coupled…

Quantum Physics · Physics 2023-03-15 Fu-Quan Dou , Fang-Mei Yang

In the quantum optimization paradigm, variational quantum algorithms face challenges with hardware-specific and instance-dependent parameter tuning, which can lead to computational inefficiencies. The promising potential of parameter…

The quantum battery (QB) makes use of quantum effects to store and supply energy, which may outperform its classical counterpart. However, there are two challenges in this field. One is that the environment-induced decoherence causes the…

Quantum Physics · Physics 2024-02-29 Wan-Lu Song , Hai-Bin Liu , Bin Zhou , Wan-Li Yang , Jun-Hong An

Quantum batteries (QBs) are energy storage and transfer microdevices that open up new possibilities in energy technology. Here, we derive a resonator-qutrits quantum battery (QB) model consisting of a multi-modes resonator and $N$…

Quantum Physics · Physics 2024-06-28 Fang-Mei Yang , Fu-Quan Dou

We investigate the charging dynamics of a frequency-modulated quantum battery (QB) placed within a dissipative cavity environment. Our study focuses on the interaction of such a battery under both weak and strong coupling regimes, employing…

Reliable charging protocols are crucial for advancing quantum batteries toward practical use. We investigate a transverse-field Ising chain as a quantum battery, focusing on the combined role of qubit interactions in the battery model and…

Quantum Physics · Physics 2025-12-17 Riccardo Grazi , Henrik Johannesson , Dario Ferraro , Niccolò Traverso Ziani

We investigate the optimal charging processes for several models of quantum batteries, finding how to maximize the energy stored in a given battery with a finite-time modulation of a set of external fields. We approach the problem using…

We investigate the charging process of quantum battery (QB) systems in an extended Dicke model with both atomic interactions and an external driving field. We focus on the effects of the atomic interaction and the external driving field on…

Quantum Physics · Physics 2022-06-22 Fu-Quan Dou , You-Qi Lu , Yuan-Jin Wang , Jian-An Sun

We consider a quantum battery modeled as a set of N independent two-level quantum systems driven by a time dependent classical source. Different figures of merit, such as stored energy, time of charging and energy quantum fluctuations…

Mesoscale and Nanoscale Physics · Physics 2020-07-02 A. Crescente , M. Carrega , M. Sassetti , D. Ferraro

Quantum batteries represent one of the most promising applications of quantum thermodynamics, whose goal is not only to store energy inside small quantum systems but also to potentially leverage genuine quantum effects to outperform…

Quantum Physics · Physics 2025-07-17 Davide Rinaldi , Radim Filip , Dario Gerace , Giacomo Guarnieri

We investigate the steady-state charging process of a single-cell quantum battery embedded in an N-cell star network of qubits, each interacting with a fermion reservoir, collectively and individually in equilibrium and non-equilibrium…

Quantum Physics · Physics 2024-02-26 F. H. Kamin , S. Salimi , M. B. Arjmandi

We provide an architecture for a multimode quantum battery (QB) based on the framework of continuous variable (CV) systems. We examine the performance of the battery by using a generic class of multimode initial states whose parameters can…

Quantum Physics · Physics 2024-08-30 Tanoy Kanti Konar , Ayan Patra , Rivu Gupta , Srijon Ghosh , Aditi Sen De

We study the problem of charging a quantum battery in finite time. We demonstrate an analytical optimal protocol for the case of a single qubit. Extending this analysis to an array of N qubits, we demonstrate that an N-fold advantage in…

Quantum Physics · Physics 2015-07-28 Felix C. Binder , Sai Vinjanampathy , Kavan Modi , John Goold

Achieving rapid and stable energy storage in quantum batteries (QBs) remains a key challenge, particularly under strong system-environment coupling where non-Markovian effects become prominent. While most previous studies focus on weak…

Quantum Physics · Physics 2026-04-30 Shun-Cai Zhao , Yi-Fan Yang , Ni-Ya Zhuang

Machine learning offers a promising methodology to tackle complex challenges in quantum physics. In the realm of quantum batteries (QBs), model construction and performance optimization are central tasks. Here, we propose a…

Quantum Physics · Physics 2025-12-22 Peng-Yu Sun , Hang Zhou , Fu-Quan Dou

Quantum batteries (QBs), acting as energy storage devices, have potential applications in future quantum science and technology. However, the QBs inevitably losses energy due to their interaction with environment. How to enhance the…

Quantum Physics · Physics 2025-11-11 Xian-Li Yin , Meixi Guo , Jian Huang , Heung-wing Joseph Lee , Guofeng Zhang

With intensive studies of quantum thermodynamics, quantum batteries (QBs) have been proposed to store and transfer energy via quantum effects. Despite many theoretical models, decoherence remains a severe challenge and practical platforms…

Quantum Physics · Physics 2026-05-21 Jin-Tian Zhang , Shuang-Quan Ma , Jing-Yi-Ran Jin , Tao Liu , Qing Ai

We consider a micromaser model of a quantum battery, where the battery is a single mode of the electromagnetic field in a cavity, charged via repeated interactions with a stream of qubits, all prepared in the same non-equilibrium state,…

Quantum Physics · Physics 2023-04-05 Vahid Shaghaghi , Varinder Singh , Matteo Carrega , Dario Rosa , Giuliano Benenti

Nowadays, quantum batteries (QBs) have been designed to outperform their classical counterparts by leveraging quantum advantages. For instance, the charging power greatly benefits from the entanglement generation of a collective charging…

Quantum Physics · Physics 2026-04-01 Guohui Dong , Mengqi Yu , Yao Yao