Boosting Thermodynamic Efficiency with Quantum Coherence of Phaseonium Atoms
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918382483275776 |
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| author | Amato, Federico Adesso, Gerardo Palma, G. Massimo Lorenzo, Salvatore Franco, Rosario Lo |
| author_facet | Amato, Federico Adesso, Gerardo Palma, G. Massimo Lorenzo, Salvatore Franco, Rosario Lo |
| contents | We present a realistic implementation of a quantum engine powered by a phaseonium gas of coherently prepared three-level atoms -- where quantum coherence acts as a thermodynamic resource. Using a collision model framework for phaseonium-cavity interactions and cavity optomechanics, we construct a full engine cycle based on two non-thermal reservoirs, each characterized by coherence-induced effective temperatures. This configuration enhances the efficiency of a simple optomechanical engine operating beyond standard thermal paradigms. We further address scalability by coupling a second cavity in cascade configuration, where the same phaseonium gas drives both cycles. Our results demonstrate the operational viability of coherence-driven quantum engines and their potential for future thermodynamic applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_02353 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Boosting Thermodynamic Efficiency with Quantum Coherence of Phaseonium Atoms Amato, Federico Adesso, Gerardo Palma, G. Massimo Lorenzo, Salvatore Franco, Rosario Lo Quantum Physics We present a realistic implementation of a quantum engine powered by a phaseonium gas of coherently prepared three-level atoms -- where quantum coherence acts as a thermodynamic resource. Using a collision model framework for phaseonium-cavity interactions and cavity optomechanics, we construct a full engine cycle based on two non-thermal reservoirs, each characterized by coherence-induced effective temperatures. This configuration enhances the efficiency of a simple optomechanical engine operating beyond standard thermal paradigms. We further address scalability by coupling a second cavity in cascade configuration, where the same phaseonium gas drives both cycles. Our results demonstrate the operational viability of coherence-driven quantum engines and their potential for future thermodynamic applications. |
| title | Boosting Thermodynamic Efficiency with Quantum Coherence of Phaseonium Atoms |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2509.02353 |