Physicists report a protocol called quantum energy teleportation. It uses quantum entanglement, a special link between particles, plus a normal message sent over a wire. One party spends energy locally by measuring their qubit. Because the qubits are entangled, the other party can then draw out the same amount of energy on their side. No energy is created from nothing, and nothing travels faster than light. The effect is subtle but real within quantum rules.
In earlier tests, the drawn energy leaked into a classical control pulse, so it could not be kept. The new work adds a third qubit that acts as a small store. After the first party measures, the second party uses the message to run a set of operations that both extracts the blocked energy and places it in the storage qubit. This keeps the energy inside the quantum system for later use.
The team ran the full protocol on an IBM superconducting quantum processor. They describe the vacuum here as a “quasi-vacuum”, a ground state that behaves like empty space for the second party. The protocol “moves” energy only because the first party’s local action and the shared entanglement make it accessible elsewhere. The result is a proof of principle for fine control of energy at the scale of qubits. It hints at future tools for managing energy inside quantum devices, but it does not offer free power or a way to tap the true vacuum.
The core result is a controlled, hardware-tested way to extract and store energy within a few qubits. It does not harvest usable power from a true vacuum and remains a lab-scale demonstration.
arXiv – Extracting and Storing Energy From a Quasi-Vacuum on a Quantum Computer – 2024
Introduces an enhanced quantum energy teleportation protocol that adds a storage qubit. After a measurement on one qubit and a classical message, the partner extracts energy from a quasi-vacuum state and stores it in a third qubit. The team demonstrates the full protocol on IBM superconducting hardware, showing that the energy can remain within the quantum register rather than leaking into classical controls.
New Scientist – Teleporting energy from empty space – 2024
Plain-language report that explains how the protocol borrows energy from one place and makes it available elsewhere using entanglement, stressing that this does not break energy conservation and that the amounts involved are tiny.
The Quantum Insider – Physicists unlock new protocol for energy teleportation and storage using quantum computers – 2024
News summary linking the New Scientist coverage and the preprint, highlighting the added storage qubit and potential uses inside quantum technologies.
Background source – Wikipedia – Quantum energy teleportation – updated 2024–2025
Background explainer of the QET idea. Energy is extracted at one site after a distant measurement and classical communication, consistent with energy conservation and relativity. Useful to understand terms like “ground state” and “entanglement.”
Follow-up study – arXiv – Quantum Energy Teleportation: A Novel Protocol Relaxing Previous Constraints – 2025
Follow-on preprint by the same group that argues several assumed limits of QET can be relaxed and confirms hardware feasibility, suggesting broader applicability across quantum platforms.
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