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  • Open Access

Charging Quantum Batteries with Chiral Squeezing

Borhan Ahmadi1,*, André H. A. Malavazi1, Janine Splettstoesser2, Paweł Horodecki1, and Lei Du2,†

  • *Contact author: borhan.ahmadi@ug.edu.pl
  • †Contact author: lei.du@chalmers.se
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Phys. Rev. Lett. 137, 180404 – Published 28 October, 2026

DOI: https://doi.org/10.1103/zg87-t4y5

Abstract

We propose a quantum-battery charger based on a driven bosonic Kitaev chain (BKC), where chiral squeezing converts passive input fluctuations into ordered, nonpassive battery states. While a coherent input pulse exhibits phase-sensitive chiral transport, the charging dynamics is dominated by bidirectionally propagating fluctuations that are amplified and squeezed into orthogonal quadratures at opposite chain ends. In contrast to conventional phase-preserving amplifiers, our scheme stores largely extractable energy and achieves a worklike signal-to-noise ratio (SNR) near unity, even in the presence of thermal noise and moderate symmetry-preserving disorder.

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Phys. Rev. Lett. 137, 180404– Published 28 October, 2026
  • Received 18 June 2026
  • Accepted 1 October 2026
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