Quantum Work Capacitances

Tirone, Salvatore; Salvia, Raffaele; Chessa, Stefano; Giovannetti, Vittorio

doi:10.48550/arxiv.2211.02685

2022

DOI: 10.48550/arxiv.2211.02685

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Quantum Work Capacitances

Salvatore Tirone¹,

Raffaele Salvia²,

Stefano Chessa³

et al.

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2023

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“…Conversely, the state ˆ ↑ ≡ Û (↓) ˆ Û (↓) † is known as the active state associated with ˆ [12,34,35], and it is the state with the highest energy in the unitary orbit of ˆ . A state ˆ ↑ is active if and only if no further energy can be injected into it by means of unitary evolution; it has zero antiergotropy.…”

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confidence: 99%

The battery capacity of energy-storing quantum systems

Yang¹,

Yang²,

Alimuddin³

et al. 2023

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The quantum battery capacity is introduced in this letter as a figure of merit that expresses the potential of a quantum system to store and supply energy. It is defined as the difference between the highest and the lowest energy that can be reached by means of the unitary evolution of the system. This function is closely connected to the ergotropy, but it does not depend on the temporary level of energy of the system. The capacity of a quantum battery can be directly linked with the entropy of the battery state, as well as with measures of coherence and entanglement.

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confidence: 99%

The battery capacity of energy-storing quantum systems

Yang¹,

Yang²,

Alimuddin³

et al. 2023

Preprint

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Quantum Work Capacitances

Cited by 1 publication

References 35 publications

The battery capacity of energy-storing quantum systems

The battery capacity of energy-storing quantum systems

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