Frustrating quantum batteries

Catalano, Alberto Giuseppe; Giampaolo, Salvatore Marco; Morsch, Oliver; Giovannetti, Vittorio; Franchini, Fabio (2024) Frustrating quantum batteries. PRX Quantum, 5 . ISSN 2691-3399

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Abstract

We propose to use a quantum spin chain as a device to store and release energy coherently (namely, a quantum battery) and we investigate the interplay between its internal correlations and outside decoherence. We employ the quantum Ising chain in a transverse field, and our charging protocol consists of a sudden global quantum quench in the external field to take the system out of equilibrium. Interactions with the environment and decoherence phenomena can dissipate part of the work that the chain can supply after being charged, measured by the ergotropy. We find that the system shows overall remarkably better performances, in terms of resilience, charging time, and energy storage, when topological frustration is introduced by setting AFM interactions with an odd number of sites and periodic boundary conditions. Moreover, we show that in a simple discharging protocol to an external spin, only the frustrated chain can transfer work and not just heat.

Item Type:	Article
Uncontrolled Keywords:	Quantum battery; Spin Chain; Frustration; Ergotropy
Subjects:	NATURAL SCIENCES > Physics > Atomic and Molecular Physics NATURAL SCIENCES > Physics > Condensed Matter Physics
Divisions:	Theoretical Physics Division
Projects:	Project title Project leader Project code Project type Molecular Quantum Simulations-MOQS Fabio Franchini 955479 EK Provedba vrhunskih istraživanja u sklopu Znanstvenog centra izvrsnosti za kvantne i kompleksne sustave te reprezentacije Liejevih algebri-QuantiXLie Hrvoje Buljan; Pavle Pandžić; Vit Tuček; Tomislav Marketin KK.01.1.1.01.0004 EK Frustrirani kompleksni sustavi-FCS Salvatore Marco Giampaolo; Tena Dubček IP-2019-04-3321 HRZZ
Depositing User:	Fabio Franchini
Date Deposited:	23 Jan 2026 09:48
URI:	http://fulir.irb.hr/id/eprint/11081
DOI:	10.1103/PRXQuantum.5.030319

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