Related papers: Entanglement and steering in quantum batteries

Entanglement and steering in quantum batteries

URL: http://arxiv.org/abs/2406.06373v1
Date: Mon, 10 Jun 2024 15:35:36 GMT
Title: Entanglement and steering in quantum batteries
Authors: Dayang Zhang, Shuangquan Ma, Yunxiu Jiang, Youbin Yu, Guangri Jin, Aixi Chen,
Abstract summary: We introduce quantum steering as a new quantum resource into batteries for the first time. We analyze the relationship between quantum steering, quantum entanglement, energy storage, and extractable work.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: The advantage of quantum batteries is that quantum resources can be used to improve charging efficiency. The quantum resources that are known to be available are: quantum entanglement and quantum coherence. In this paper, we introduce quantum steering as a new quantum resource into batteries for the first time. We analyze the relationship between quantum steering, quantum entanglement, energy storage, and extractable work by considering two models: Field-quantum battery and Cavity-Heisenberg quantum battery. We find that in the steerable range, the quantum steering of different qubits has a maximum or minimum value, which corresponds to the energy storage of the battery, and the extractable work has a maximum value. The occurrence of the minimum value of quantum entanglement is always accompanied by the occurrence of the maximum value of parameters such as energy storage. Ultimately, we analyzed the reasons for these results using the purity of the system. And found a relatively general conclusion: when the purity is at the maximum, important parameters such as the energy storage of the battery are also at the maximum.

Related papers

Two-photon charging of a quantum battery with a Gaussian pulse envelope [0.0]
We show how an exponential enhancement in stored energy can be achieved with a quantum battery thanks to a two-photon charging protocol. Our results demonstrate a plausible mechanism for quickly storing a vast amount of energy in a quantum object defined by continuous variables.
arXiv Detail & Related papers (2024-07-09T12:35:29Z)
Hyperbolic enhancement of a quantum battery [0.0]
We show how one can circumvent the problem of energy loss by proposing a quantum battery model. Namely, charging the battery quadratically with a short temporal pulse induces a hyperbolic enhancement in the stored energy. We show that when the driving is strong enough the useful work which can be extracted from the quantum battery, that is the ergotropy, is exactly equal to the stored energy.
arXiv Detail & Related papers (2024-05-19T20:13:04Z)
Power Characterization of Noisy Quantum Kernels [52.47151453259434]
We show that noise may make quantum kernel methods to only have poor prediction capability, even when the generalization error is small. We provide a crucial warning to employ noisy quantum kernel methods for quantum computation.
arXiv Detail & Related papers (2024-01-31T01:02:16Z)
A quantum battery with quadratic driving [0.0]
Quantum batteries are energy storage devices built using quantum mechanical objects. We study theoretically a bipartite quantum battery model, composed of a driven charger connected to an energy holder.
arXiv Detail & Related papers (2023-11-04T15:01:36Z)
Variational-quantum-eigensolver-inspired optimization for spin-chain work extraction [39.58317527488534]
Energy extraction from quantum sources is a key task to develop new quantum devices such as quantum batteries. One of the main issues to fully extract energy from the quantum source is the assumption that any unitary operation can be done on the system. We propose an approach to optimize the extractable energy inspired by the variational quantum eigensolver (VQE) algorithm.
arXiv Detail & Related papers (2023-10-11T15:59:54Z)
Analytically solvable many-body Rosen-Zener quantum battery [0.0]
How to obtain analytical solutions for quantum battery systems and achieve a full charging is a crucial element of the quantum battery. Here, we investigate the Rosen-Zener quantum battery with $N$ two-level systems, which includes atomic interactions and external driving field.
arXiv Detail & Related papers (2023-07-13T13:30:14Z)
Quantum data learning for quantum simulations in high-energy physics [55.41644538483948]
We explore the applicability of quantum-data learning to practical problems in high-energy physics. We make use of ansatz based on quantum convolutional neural networks and numerically show that it is capable of recognizing quantum phases of ground states. The observation of non-trivial learning properties demonstrated in these benchmarks will motivate further exploration of the quantum-data learning architecture in high-energy physics.
arXiv Detail & Related papers (2023-06-29T18:00:01Z)
A vertical gate-defined double quantum dot in a strained germanium double quantum well [48.7576911714538]
Gate-defined quantum dots in silicon-germanium heterostructures have become a compelling platform for quantum computation and simulation. We demonstrate the operation of a gate-defined vertical double quantum dot in a strained germanium double quantum well. We discuss challenges and opportunities and outline potential applications in quantum computing and quantum simulation.
arXiv Detail & Related papers (2023-05-23T13:42:36Z)
Vacuum enhanced charging of a quantum battery [0.0]
We show how a purely quantum effect related to the vacuum of the electromagnetic field can enhance the charging of a quantum battery. In particular, we demonstrate how an anti-Jaynes Cummings interaction can be used to increase the stored energy of an effective two-level atom.
arXiv Detail & Related papers (2023-01-31T13:54:14Z)
Is there evidence for exponential quantum advantage in quantum chemistry? [45.33336180477751]
The idea to use quantum mechanical devices to simulate other quantum systems is commonly ascribed to Feynman. It may be prudent to assume exponential speedups are not generically available for this problem.
arXiv Detail & Related papers (2022-08-03T16:33:57Z)
Efficient criteria of quantumness for a large system of qubits [58.720142291102135]
We discuss the dimensionless combinations of basic parameters of large, partially quantum coherent systems. Based on analytical and numerical calculations, we suggest one such number for a system of qubits undergoing adiabatic evolution.
arXiv Detail & Related papers (2021-08-30T23:50:05Z)

This list is automatically generated from the titles and abstracts of the papers in this site.