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In this paper, a protocol is proposed in which energy extraction from localvacuum states is possible by using quantum measurement information for thevacuum state of quantum fields. In the protocol, Alice, who stays at a spatialpoint, excites the ground state of the fields by a local measurement.Consequently, wavepackects generated by A' measurement propagate the vacuum tospatial infinity. Let us assume that Bob stays away from Alice and fails tocatch the excitation energy when the wavepackets pass in front of him. NextAlice announces her local measurement result to Bob by classical communication.Bob performs a local unitary operation depending on the measurement result. Inthis process, positive energy is released from the fields to Bob's apparatus ofthe unitary operation. In the field systems, wavepackets are generated withnegative energy around Bob's location. Soon afterwards, the negative -energywavepackets begin to chase after the positive-energy wavepackets generated byAlice and form loosely bound states.

Quantum Measurement Information as a key to Energy Release from Local Vacuums