Related Experiment Video
Updated: Feb 12, 2026
05:33
Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
22.4K
High-Power Collective Charging of a Solid-State Quantum Battery
Dario Ferraro1, Michele Campisi1, Gian Marcello Andolina1,2
1Istituto Italiano di Tecnologia, Graphene Labs, Via Morego 30, I-16163 Genova, Italy.
Physical Review Letters
|March 31, 2018
Summary
Researchers demonstrate a quantum advantage in charging power for quantum batteries (QBs). Collective quantum resources enhance QB charging speed, scaling with the square root of the number of units.
Area of Science:
- Quantum Information Science
- Solid-State Quantum Systems
- Quantum Thermodynamics
Background:
- Quantum information theorems suggest collective quantum resources can significantly boost quantum battery (QB) charging power.
- Previous models often lack concrete solid-state implementations for enhanced QB performance.
Purpose of the Study:
- To present and solve a model of a quantum battery engineerable in solid-state architectures.
- To contrast the charging power of a collective quantum battery (Dicke QB) with a non-collective one (Rabi QB).
Main Methods:
- Modeling a quantum battery composed of N two-level systems coupled to a single photonic cavity mode.
- Utilizing exact diagonalization to analyze the system's dynamics and charging capabilities.
- Comparing the 'Dicke QB' (collective coupling) with the 'Rabi QB' (individual couplings).
Main Results:
- Demonstrated a genuine quantum advantage in charging power for the Dicke QB model.
- Observed that the charging power of the Dicke QB scales with the square root of the number of units (√N) for large N.
- Highlighted the role of entanglement generated by the common photonic mode in achieving this enhancement.
Conclusions:
- Solid-state engineered quantum batteries leveraging collective effects exhibit a significant quantum advantage in charging power.
- The Dicke QB model provides a viable pathway for realizing enhanced quantum battery performance.
- The √N scaling indicates a promising route for scalable and powerful quantum energy storage.
Related Concept Videos
03:12Batteries and Fuel Cells
31.1K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
31.1K
02:43Quantum Numbers
52.3K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
52.3K
03:08Atomic Radii and Effective Nuclear Charge
62.3K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
62.3K
02:54Molecular and Ionic Solids
20.3K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
20.3K
02:42Formal Charges
40.7K
In some cases, there are seemingly more than one valid Lewis structures for molecules and polyatomic ions. The concept of formal charges can be used to help predict the most appropriate Lewis structure when more than one reasonable structure exists.
40.7K
02:45The Quantum-Mechanical Model of an Atom
59.7K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
59.7K