Phys.org  April 26, 2021 As an immediate consequence of the effect of quantum mechanics, the measuring device provides both energy and entropy to the quantum system. Previously an international team of researchers (France, USA – University of Rochester, Washington University, Chapman University) introduced the proof of concept for a measurement-fueled engine based on a single qubit. Now they have introduced a two-qubit engine that is powered by entanglement and local measurements. Energy is extracted from the detuned qubits coherently exchanging a single excitation. Generalizing to an N-qubit chain, they showed that the low energy of the first qubit can be […]