Correlations in a quantum switch-based heat engine with measurements: A proof-of-principle demonstration
arXiv:2510.26460 · doi:10.1088/2058-9565/ae34e0
Abstract
Allowing the order of quantum operations to exist in superposition is known to open new routes for thermodynamic tasks. We investigate a quantum heat engine where energy exchanges are driven by generalized measurements, and the sequence of these operations is coherently controlled in a superposition of causal orders. Our analysis explores how initial correlations between the working medium and the controller affect the engine's performance. Considering uncorrelated, classically correlated, and entangled initial states, we show that entanglement enables the superposed causal order to generate coherence in the working medium, thereby enhancing work extraction and efficiency beyond the separable and uncorrelated cases. Finally, we present a proof-of-principle simulation on the IBM Quantum Experience platform, realizing a quantum switch of two measurement channels with tunable strengths and experimentally confirming the predicted efficiency enhancement enabled by correlation-assisted superposed causal order.
29 pages, 16 figures
References in corpus (91)
- Quantifying Coherence
- The classical-quantum boundary for correlations: discord and related measures
- Quantum correlations with no causal order
- Maximal work extraction from quantum systems
- Quantum computations without definite causal structure
- Classical and quantum correlations under decoherence
- Experimental investigation of classical and quantum correlations under decoherence
- Experimental Superposition of Orders of Quantum Gates
- An improved Landauer Principle with finite-size corrections
- Computational advantage from quantum-controlled ordering of gates
- Experimental Verification of an Indefinite Causal Order
- Enhanced communication with the assistance of indefinite causal order
- Indefinite Causal Order in a Quantum Switch
- Quantum thermodynamic devices: from theoretical proposals to experimental reality
- The role of quantum measurement in stochastic thermodynamics
- Extracting work from quantum measurement in Maxwell demon engines
- Towards Quantum Gravity: A Framework for Probabilistic Theories with Non-Fixed Causal Structure
- Quantum Measurement Cooling
- Quantum discord as a resource for quantum cryptography
- Daemonic Ergotropy: Enhanced Work Extraction from Quantum Correlations
- Experimental rectification of entropy production by a Maxwell's Demon in a quantum system
- Information gain and loss for a quantum Maxwell's demon
- Quantum Metrology with Indefinite Causal Order
- Efficient Quantum Measurement Engine
- A non-equilibrium quantum Landauer principle
- Experimental transmission of quantum information using a superposition of causal orders
- A two-qubit engine fueled by entangling operations and local measurements
- Bell's Theorem for Temporal Order
- Quantum Refrigeration with Indefinite Causal Order
- Indefinite causal order enables perfect quantum communication with zero capacity channels
- Quantum Switch for the Quantum Internet: Noiseless Communications through Noisy Channels
- Single-Temperature Quantum Engine Without Feedback Control
- Coherence-enhanced efficiency of feedback-driven quantum engines
- Experimental Quantum Communication Enhancement by Superposing Trajectories
- Measurement driven single temperature engine
- Communicating via ignorance: Increasing communication capacity via superposition of order
- Computational advantage from quantum superposition of multiple temporal orders of photonic gates
- Quantum discord as a resource in quantum communication
- Sending classical information via three noisy channels in superposition of causal orders
- Heat and work along individual trajectories of a quantum bit
- Experimentally feasible computational advantage from quantum superposition of gate orders
- Work extraction from coherently activated maps via quantum switch
- Optimal Strategies of Quantum Metrology with a Strict Hierarchy
- A quantum Szilard engine without heat from a thermal reservoir
- Quantum and Classical Data Transmission through Completely Depolarising Channels in a Superposition of Cyclic Orders
- Thermodynamic advancement in the causally inseparable occurrence of thermal maps
- Quantum measurement engines and their relevance for quantum interpretations
- Experiments on quantum causality
- Measurement-induced operation of two-ion quantum heat machines
- Experimental investigation of a quantum heat engine powered by generalized measurements
- Feedback controlled heat transport in quantum devices: Theory and solid state experimental proposal
- Measurement-based quantum heat engine in a multilevel system
- Maxwell's lesser demon: a quantum engine driven by pointer measurements
- Experimental Aspects of Indefinite Causal Order in Quantum Mechanics
- Efficiently Fuelling a Quantum Engine with Incompatible Measurements
- Suppressing coherence effects in quantum-measurement based engines
- Autonomous dissipative Maxwell's demon in a diamond spin qutrit
- Thermal devices powered by generalized measurements with indefinite causal order
- Finite-time performance of a single-ion quantum Otto engine
- Critical-point behavior of a measurement-based quantum heat engine
- Superposition of causal order enables perfect quantum teleportation with very noisy singlets
- Beyond Shannon Limits: Quantum Communications through Quantum Paths
- Single-ion quantum Otto engine with always-on bath interaction
- Quantum parameter estimation on coherently superposed noisy channels
- Indefinite causal order for quantum metrology with quantum thermal noise
- Daemonic ergotropy: generalised measurements and multipartite settings
- Quantum engine based on general measurements
- Maximal energy extraction via quantum measurement
- Measuring incompatibility and clustering quantum observables with a quantum switch
- Extended local ergotropy
- Exploring quantum thermodynamics with NMR
- A local and operational framework for the foundations of physics
- Landauer Principle and Thermodynamics of Computation
- Higher-order Process Matrix Tomography of a passively-stable Quantum SWITCH
- Evading noise in multiparameter quantum metrology with indefinite causal order
- Two-time weak measurement protocol for ergotropy protection in open quantum batteries
- Demonstration of a quantum SWITCH in a Sagnac configuration
- Reassessing the advantage of indefinite causal orders for quantum metrology
- Indefinite Causal Orders from Superpositions in Time
- Quantum discord in quantum computation
- Experimentally demonstrating indefinite causal order algorithms to solve the generalized Deutsch's problem
- Quantum communication using a quantum switch of quantum switches
- Breaking the limits of purification: Postselection enhances heat-bath algorithmic cooling
- Quantum switch instabilities with an open control
- Parallel ergotropy: Maximum work extraction via parallel local unitary operations
- Quantum networks boosted by entanglement with a control system
- Practical computational advantage from the quantum switch on a generalized family of promise problems
- Activation of thermal states by coherently controlled thermalization processes
- Indefinite causal order for quantum phase estimation with Pauli noise
- Indefinite causal key distribution
- Enhancement of non-Stabilizerness within Indefinite Causal Order