More efficient, fast-charging, compact, spin quantum battery can be charged without an external field

https://lifeboat.com/blog/2024/11/new-spin-quantum-battery-can-be-charged-without-an-external-field

"stable, integrable 1D dimerized XY chain solid-state spin quantum battery, leveraging the spin degrees of freedom of particles to store and release energy... rich quantum phase of spins onto auxiliary fermionic degrees of freedom... charging relies on double quench of odimerization strength and stored energy... charged in a unique and advantageous way, without the need for an external field.

Research Paper: Controlling Energy Storage Crossing Quantum Phase Transitions in an Integrable Spin Quantum Battery

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.133.19700

Related: Advent of the topological quantum battery

https://www.eurekalert.org/news-releases/1085932