# Quantum advantage in charging cavity and spin batteries by repeated interactions

@inproceedings{Salvia2022QuantumAI, title={Quantum advantage in charging cavity and spin batteries by repeated interactions}, author={Raffaele Salvia and Mart{\'i} Perarnau-Llobet and G{\'e}raldine Haack and Nicolas Brunner and Stefan Nimmrichter}, year={2022} }

Recently, an unconditional advantage has been demonstrated for the process of charging of a quantum battery in a collisional model. Motivated by the question of whether such an advantage could be observed experimentally, we consider a model where the battery is modeled by a quantum harmonic oscillator or a large spin, charged via repeated interactions with a stream of non-equilibrium qubit units. For both setups, we show that a quantum protocol can signiﬁcantly outperform the most general…

## 4 Citations

### The asymptotic emergence of the Second Law for a repeated charging process

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A repeated interaction process assisted by auxiliary thermal systems charges a quantum battery. The charging energy is supplied by switching on and off the interaction between the battery and the…

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We show that a micromaser is an excellent model of quantum battery. A highly excited, pure, and effectively steady state of the cavity mode, charged by coherent qubits, can be achieved, also in the…

## References

SHOWING 1-10 OF 113 REFERENCES

### Real-time quantum feedback prepares and stabilizes photon number states

- PhysicsNature
- 2011

The experiment demonstrates that active control can generate non-classical states of this oscillator and combat their decoherence, and is a significant step towards the implementation of complex quantum information operations.

### Quantum Speed-Up in Collisional Battery Charging.

- PhysicsPhysical review letters
- 2021

It is shown that coherent protocols can yield higher charging power than any possible incoherent strategy, demonstrating a quantum speed-up at the level of a single battery.

### Dissipation-Based Quantum Sensing of Magnons with a Superconducting Qubit.

- PhysicsPhysical review letters
- 2020

The experimentally demonstrate quantum sensing of a steady-state magnon population in a magnetostatic mode of a ferrimagnetic crystal using Ramsey interferometry with a sensitivity on the order of 10^{-3} magnons/sqrt[Hz].

### Energetic Cost of Measurements Using Quantum, Coherent, and Thermal Light.

- PhysicsPhysical review letters
- 2022

Quantum measurements are basic operations that play a critical role in the study and application of quantum information. We study how the use of quantum, coherent, and classical thermal states of…

### Exploiting coherence for quantum thermodynamic advantage

- Physics
- 2022

Kenza Hammam, 2, 3 Heather Leitch, Yassine Hassouni, and Gabriele De Chiara Centre for Theoretical Atomic, Molecular and Optical Physics, Queen’s University Belfast, Belfast BT7 1NN, United Kingdom…

### Quantum thermodynamic devices: From theoretical proposals to experimental reality

- PhysicsAVS Quantum Science
- 2022

Thermodynamics originated in the need to understand novel technologies developed by the Industrial Revolution. However, over the centuries, the description of engines, refrigerators, thermal…

### Extended Dicke quantum battery with interatomic interactions and driving field

- PhysicsPhysical Review B
- 2022

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…

### Quantum batteries at the verge of a phase transition

- PhysicsNew Journal of Physics
- 2021

Starting from the observation that the reduced state of a system strongly coupled to a bath is, in general, an athermal state, we introduce and study a cyclic battery–charger quantum device that is…

### Battery Charging in Collision Models with Bayesian Risk Strategies

- PhysicsEntropy
- 2021

We constructed a collision model where measurements in the system, together with a Bayesian decision rule, are used to classify the incoming ancillas as having either high or low ergotropy (maximum…

### Extracting work from correlated many-body quantum systems

- PhysicsPhysical Review A
- 2022

The presence of correlations in the input state of a non-interacting many-body quantum system can lead to an increase in the amount of work we can extract from it under global unitary processes…