The Unruh quantum Otto engine
| Autor: | Thiago R. de Oliveira, Marcelo S. Sarandy, Enrique Arias |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
High Energy Physics - Theory
Physics Quantum Physics Nuclear and High Energy Physics Black Holes Thermal quantum field theory Observer (quantum physics) FOS: Physical sciences 01 natural sciences 010305 fluids & plasmas General Relativity and Quantum Cosmology Unruh effect High Energy Physics - Theory (hep-th) Vacuum energy Quantum mechanics Qubit 0103 physical sciences lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Otto cycle Thermal Field Theory Quantum Physics (quant-ph) 010306 general physics Quantum thermodynamics Quantum |
| Zdroj: | Journal of High Energy Physics Journal of High Energy Physics, Vol 2018, Iss 2, Pp 1-31 (2018) |
| ISSN: | 1029-8479 |
| Popis: | We introduce a quantum heat engine performing an Otto cycle by using the thermal properties of the quantum vacuum. Since Hawking and Unruh, it has been established that the vacuum space, either near a black hole or for an accelerated observer, behaves as a bath of thermal radiation. In this work, we present a fully quantum Otto cycle, which relies on the Unruh effect for a single quantum bit (qubit) in contact with quantum vacuum fluctuations. By using the notions of quantum thermodynamics and perturbation theory we obtain that the quantum vacuum can exchange heat and produce work on the qubit. Moreover, we obtain the efficiency and derive the conditions to have both a thermodynamic and a kinematic cycle in terms of the initial populations of the excited state, which define a range of allowed accelerations for the Unruh engine. Comment: 31 pages, 11 figures |
| Databáze: | OpenAIRE |
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