A modulator-assisted Zeno protocol enables indirect on-off control of charger-battery energy transfer in quantum batteries via repeated local unitaries on an auxiliary qubit, preserving N^{3/2} charging power scaling.
The battery’s energy is Eb = Tr[ ρH b], where we define the battery’s Hamiltonian to be H b ≡ ω1(1b − σb z), with the identity operator 1 ensuring the lowest energy to be 0
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Modulator-Assisted Zeno Control of Energy Transfer in Quantum Batteries
A modulator-assisted Zeno protocol enables indirect on-off control of charger-battery energy transfer in quantum batteries via repeated local unitaries on an auxiliary qubit, preserving N^{3/2} charging power scaling.