Bosonic Szilard Engine Assisted by Feshbach Resonances
arXiv:1803.07918 · doi:10.1103/PhysRevA.97.062128
Abstract
It was recently found that the information-to-work conversion in a quantum Szilard engine can be increased by using a working medium of bosons with attractive interactions. In the original scheme, the work output depends on the insertion and removal position of an impenetrable barrier that acts like a piston, separating the chambers of the engine. Here, we show that the barrier removal process can be made fully reversible, resulting in a full information-to-work conversion if we also allow for the interaction strength to change during the cycle. Hence, it becomes possible to reach the maximum work output per cycle dictated by the second law of thermodynamics. These findings can, for instance, be experimentally verified with ultra-cold atoms as a working medium, where a change of interaction strength can be controlled by Feshbach resonances.
References in corpus (23)
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Information heat engine: converting information to energy by feedback control
- Quantum Thermodynamic Cycles and quantum heat engines
- Second Law of Thermodynamics with Discrete Quantum Feedback Control
- Minimal Energy Cost for Thermodynamic Information Processing: Measurement and Information Erasure
- Experimental realization of a Szilard engine with a single electron
- On-chip Maxwell's demon as an information-powered refrigerator
- Work and information processing in a solvable model of Maxwell's demon
- Quantum and Information Thermodynamics: A Unifying Framework based on Repeated Interactions
- Quantum Szilard Engine
- The physics of forgetting: Landauer's erasure principle and information theory
- Universal features in the energetics of symmetry breaking
- Quantum Supremacy of Many-Particle Thermal Machines
- Maxwell's Refrigerator: An Exactly Solvable Model
- An efficient non-linear Feshbach engine
- Information driven current in a quantum Maxwell demon
- How an autonomous quantum Maxwell demon can harness correlated information
- Multi-Particle Quantum Szilard Engine with Optimal Cycles Assisted by a Maxwell's Demon
- Quantum Information Engines with Many-Body States attaining optimal Extractable Work with Quantum Control
- Quantum Szilard engines with arbitrary spin
- Thermodynamics of information exchange between two coupled quantum dots
- Measurement and Particle Statistics in the Szilard Engine