Thermodynamic Uncertainty Relations for Bosonic Otto Engines
- URL: http://arxiv.org/abs/2007.05399v3
- Date: Tue, 15 Dec 2020 16:22:04 GMT
- Title: Thermodynamic Uncertainty Relations for Bosonic Otto Engines
- Authors: Massimiliano F. Sacchi
- Abstract summary: We study two-mode bosonic engines undergoing an Otto cycle.
By means of a two-point-measurement approach we provide the joint probability of the work and heat.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study two-mode bosonic engines undergoing an Otto cycle. The energy
exchange between the two bosonic systems is provided by a tunable unitary
bilinear interaction in the mode operators modeling frequency conversion,
whereas the cyclic operation is guaranteed by relaxation to two baths at
different temperature after each interacting stage. By means of a
two-point-measurement approach we provide the joint probability of the
stochastic work and heat. We derive exact expressions for work and heat
fluctuations, identities showing the interdependence among average extracted
work, fluctuations and efficiency, along with thermodynamic uncertainty
relations between the signal-to-noise ratio of observed work and heat and the
entropy production. We outline how the presented approach can be suitably
applied to derive thermodynamic uncertainty relations for quantum Otto engines
with alternative unitary strokes.
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