Quantum Field Thermal Machines
| Autor: | Jens Eisert, Marek Gluza, Marco Pezzutto, Jörg Schmiedmayer, Igor Mazets, Giuseppe Vitagliano, Nelly Huei Ying Ng, João Sabino, Yasser Omar, Marcus Huber |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
General Physics
Computer science FOS: Physical sciences 01 natural sciences 7. Clean energy 010305 fluids & plasmas Theoretical physics Blueprint 0103 physical sciences Thermal Quantum information processing Atomic gases Physics::Atomic Physics Road map Quantum field theory 010306 general physics Quantum Quantum thermodynamics General Environmental Science Condensed Matter::Quantum Gases Quantum Physics Statistical Physics General Engineering Physics::History of Physics Atomic Molecular & Optical Quantum Gases (cond-mat.quant-gas) General Earth and Planetary Sciences Quantum Information Condensed Matter - Quantum Gases Quantum Physics (quant-ph) |
| Popis: | Recent years have enjoyed an overwhelming interest in quantum thermodynamics, a field of research aimed at understanding thermodynamic tasks performed in the quantum regime. Further progress, however, seems to be obstructed by the lack of experimental implementations of thermal machines in which quantum effects play a decisive role. In this work, we introduce a blueprint of quantum field machines, which - once experimentally realized - would fill this gap. Even though the concept of the QFM presented here is very general and can be implemented in any many body quantum system that can be described by a quantum field theory. We provide here a detailed proposal how to realize a quantum machine in one-dimensional ultra-cold atomic gases, which consists of a set of modular operations giving rise to a piston. These can then be coupled sequentially to thermal baths, with the innovation that a quantum field takes up the role of the working fluid. In particular, we propose models for compression on the system to use it as a piston, and coupling to a bath that gives rise to a valve controlling heat flow. These models are derived within Bogoliubov theory, which allows us to study the operational primitives numerically in an efficient way. By composing the numerically modelled operational primitives we design complete quantum thermodynamic cycles that are shown to enable cooling and hence giving rise to a quantum field refrigerator. The active cooling achieved in this way can operate in regimes where existing cooling methods become ineffective. We describe the consequences of operating the machine at the quantum level and give an outlook of how this work serves as a road map to explore open questions in quantum information, quantum thermodynamic and the study of non-Markovian quantum dynamics. Comment: 48 pages, 18 figures, replaced by published version |
| Databáze: | OpenAIRE |
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