Vacuum enhanced charging of a quantum battery
- URL: http://arxiv.org/abs/2301.13640v1
- Date: Tue, 31 Jan 2023 13:54:14 GMT
- Title: Vacuum enhanced charging of a quantum battery
- Authors: Tiago F. F. Santos, Yohan Vianna de Almeida, and Marcelo F. Santos
- Abstract summary: 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.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum batteries are quantum systems that store energy which can then be
used for quantum tasks. One relevant question about such systems concerns the
differences and eventual advantages over their classical counterparts, whether
in the efficiency of the energy transference, input power, total stored energy
or other relevant physical quantities. Here, 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 derived from an off-resonant Raman configuration can be
used to increase the stored energy of an effective two-level atom when compared
to its classically driven counterpart, eventually achieving full charging of
the battery with zero entropic cost.
Related papers
- Solving an Industrially Relevant Quantum Chemistry Problem on Quantum Hardware [31.15746974078601]
We calculate the lowest energy eigenvalue of active space Hamiltonians of industrially relevant and strongly correlated metal chelates on trapped ion quantum hardware.
We are able to achieve chemical accuracy by training a variational quantum algorithm on quantum hardware, followed by a classical diagonalization in the subspace of states measured as outputs of the quantum circuit.
arXiv Detail & Related papers (2024-08-20T12:50:15Z) - 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) - Second Law of Entanglement Manipulation with Entanglement Battery [41.94295877935867]
A central question since the beginning of quantum information science is how two distant parties can convert one entangled state into another.
It has been conjectured that entangled state transformations could be executed reversibly in an regime, mirroring the nature of Carnot cycles in classical thermodynamics.
We investigate the concept of an entanglement battery, an auxiliary quantum system that facilitates quantum state transformations without a net loss of entanglement.
arXiv Detail & Related papers (2024-05-17T07:55:04Z) - Phonon-photon conversion as mechanism for cooling and coherence transfer [41.94295877935867]
The energy of a movable wall of a cavity confining a quantum field can be converted into quanta of the field itself.
We employ quantum thermodynamics to show that this phenomenon can be employed as a tool to cool down the wall.
We show how to employ one laser drive to cool the entire system including the case when it is composed of other subsystems.
arXiv Detail & Related papers (2023-12-15T14:42:16Z) - 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 interaction of sub-relativistic aloof electrons with mesoscopic
samples [91.3755431537592]
Relativistic electrons experience very slight wave packet distortion and negligible momentum recoil when interacting with nanometer-sized samples.
Modelling fast electrons as classical point-charges provides extremely accurate theoretical predictions of energy-loss spectra.
arXiv Detail & Related papers (2022-11-14T15:22:37Z) - Schr\"odinger cat states of a 16-microgram mechanical oscillator [54.35850218188371]
The superposition principle is one of the most fundamental principles of quantum mechanics.
Here we demonstrate the preparation of a mechanical resonator with an effective mass of 16.2 micrograms in Schr"odinger cat states of motion.
We show control over the size and phase of the superposition and investigate the decoherence dynamics of these states.
arXiv Detail & Related papers (2022-11-01T13:29:44Z) - Quantum speed-up in collisional battery charging [0.0]
We present a collision model for the charging of a quantum battery by identical nonequilibrium qubit units.
We show that coherent protocols can yield higher charging power than any possible incoherent strategy.
arXiv Detail & Related papers (2021-05-05T04:28:43Z) - Quantum advantage of two-level batteries in self-discharging process [0.0]
We study the decoherence effects that lead to charge leakage to the surrounding environment.
The quantum advantage concerning the classical counterpart is highlighted for single- and multi-cell quantum batteries.
arXiv Detail & Related papers (2020-12-22T13:38:09Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.