Original title: Pulse-Controlled Topologically Protected Quantum Batteries
Jin Yang, Biao Xiong, Jibing Liu, Houguo Yu +3 · September 2026
Quantum batteries store energy for quantum devices. Charging them over long distances is useful because it reduces interference between the charger and the battery. To do this, researchers designed a charging method that uses a chain of superconducting qubits, which are quantum bits of information. The system transfers energy by adjusting timed control pulses between the qubits. These pulses guide the energy through a protected path so it flows safely from charger to battery. The researchers found that energy moves without leaking backward, even if the pulses have errors. When charging finishes, all stored energy can be fully extracted. The method still works in relatively large systems. Finally, shaping the pulses speeds up the charging process.
Imagine filling a water bucket from a tap far away using a long hose. Normally, water might leak or the pressure might change, making it hard to fill completely. In this paper, the charging is like the water flow, and the topological protection acts like a special hose that prevents leaks and adjusts to pressure changes, ensuring the bucket gets full.
Quantum batteries could power future quantum computers and sensors. This method allows charging from a distance without energy loss, making them more reliable and easier to use in real devices.
The abstract presents this as a theoretical framework and does not mention experimental validation. It states the protocol remains effective for relatively large system sizes, but does not specify scalability to very large systems or address real-world implementation challenges.
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Pulse-Controlled Topologically Protected Quantum Batteries — Jin Yang, Biao Xiong, Jibing Liu et al.
Abstract licence: CC0
Explanation generated by Synthesis from the abstract — it is not the original paper. This is a preprint, so it hasn't necessarily been peer reviewed.