• Corpus ID: 248496311

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… 

Figures from this paper

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

In one of its versions, the Second Law states: “It is impossible to construct an engine which will work in a complete cycle, and produce no effect except the raising of a weight and cooling of a heat

Charging advantages of Lipkin-Meshkov-Glick quantum battery

We investigate the performance of the Lipkin-Meshkov-Glick quantum battery based on shortcuts to adiabaticity (STA). We mainly consider the situation where the coupling strength of any two sites in

Efficiency Fluctuations in a Quantum Battery Charged by a Repeated Interaction Process

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

Micromasers as quantum batteries

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

TLDR
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.

TLDR
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.

TLDR
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.

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

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

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

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

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

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

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
...