3 papers
quant-ph2026
Interaction-Enhanced Ergotropy in Phase-Driven Andreev Bound State Quantum Batteries
Disha Verma, B. Vigneshwar, R. Sankaranarayanan
We investigate a phase-driven quantum battery composed of two interacting Andreev bound state (ABS) units, providing a minimal superconducting platform for coherent energy storage.…
quant-ph2026
Purity and bound energy in ancilla-assisted work extraction
B. Vigneshwar, Farhaan Khan, R. Sankaranarayanan
We investigate ancilla-assisted work extraction in quantum batteries from the perspective of bound energy and purity. We show that the bound energy of the reduced system provides a…
quant-ph2025
Nonlocal contributions to ergotropy: A thermodynamic perspective
B. Vigneshwar, R. Sankaranarayanan
Nonlocality is a defining feature of quantum mechanics and has long served as a key indicator of quantum resources since the formulation of Bell's inequalities. Identifying the con…