Implementation of a Quantum Engine Fuelled by Information
- URL: http://arxiv.org/abs/2006.10136v1
- Date: Wed, 17 Jun 2020 20:08:41 GMT
- Title: Implementation of a Quantum Engine Fuelled by Information
- Authors: John P. S. Peterson, Roberto S. Sarthour and Raymond Laflamme
- Abstract summary: We show the implementation of a complete cycle of a quantum engine fuelled by information.
We successfully demonstrate that information can be used as a fuel for single-reservoir engines.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Here, we show the implementation of a complete cycle of a quantum engine
fuelled by information. This engine is a quantum version of the Szilard engine,
where information is used to extract heat from the environment and fully
convert it into work. In our experiment, this work is used to make a weight,
initially in the ground state, reach its excited state. We measure the energy
and the state of each component of the engine, after each step of the cycle,
and compare them with the theoretical prediction to show that the cycle is
implemented with high precision. We also perform experiments to show that the
engine is well isolated from the environment after the heat extraction, and we
measure the entropy of the weight to show the full conversion of heat into
work. Thus, we successfully demonstrate that information can be used as a fuel
for single-reservoir engines.
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