Experimental Verification of Demon-Involved Fluctuation Theorems
arXiv:2408.16997 · doi:10.1103/PhysRevLett.133.090402
Abstract
The limit of energy saving in the control of small systems has recently attracted much interest due to the concept refinement of the Maxwell demon. Inspired by a newly proposed set of fluctuation theorems, we report the first experimental verification of these equalities and inequalities in a ultracold 40Ca ion system, confirming the intrinsic nonequilibrium in the system due to involvement of the demon. Based on elaborately designed demon-involved control protocols, such as the Szilard engine protocol, we provide experimentally quantitative evidence of the dissipative information, and observe tighter bounds of both the extracted work and the demon's efficacy than the limits predicted by the Sagawa-Ueda theorem. Our results substantiate a close connection between the physical nature of information and nonequilibrium processes at the microscale, which help further understanding the thermodynamic characteristics of information and the optimal design of nanoscale and smaller systems.
References in corpus (27)
- Stochastic thermodynamics, fluctuation theorems, and molecular machines
- Quantifying Coherence
- The Entropy Production Fluctuation Theorem and the Nonequilibrium Work Relation for Free Energy Differences
- The Physics of Maxwell's demon and information
- Generalized Jarzynski Equality under Nonequilibrium Feedback Control
- Experimental realization of a Szilard engine with a single electron
- Quantum state tomography across the exceptional point in a single dissipative qubit
- Irreversible entropy production, from quantum to classical
- Fluctuation theorems for stochastic dynamics
- An improved Landauer Principle with finite-size corrections
- Quantum and Information Thermodynamics: A Unifying Framework based on Repeated Interactions
- Nonequilibrium Physics in Biology
- Quantum Szilard Engine
- Thermodynamics with continuous information flow
- Stochastic thermodynamics of bipartite systems: transfer entropy inequalities and a Maxwell's demon interpretation
- Second-law-like inequalities with information and their interpretations
- Single-atom demonstration of quantum Landauer principle
- Stochastic thermodynamics for "Maxwell demon" feedbacks
- Thermodynamics of Quantum Information Flows
- Heat and work along individual trajectories of a quantum bit
- Experimental verification of a Jarzynski-related information-theoretic equality using a single trapped ion
- Detailed Fluctuation Relation for Arbitrary Measurement and Feedback Schemes
- Mutual Entropy-Production and Sensing in Bipartite Systems
- On the Computational Power of Molecular Heat Engines
- Detecting Gaussian entanglement via extractable work
- Conditional entropy production and quantum fluctuation theorem of dissipative information: Theory and experiments
- Quasiprobability fluctuation theorem behind the spread of quantum information