Boosting the performance of small autonomous refrigerators via common environmental effects

Abstract

We explore the possibility of enhancing the performance of small thermal machines by the presence of common noise sources. In particular, we study a prototypical model for an autonomous quantum refrigerator comprised by three qubits coupled to thermal reservoirs at different temperatures. Our results show that engineering the coupling to the reservoirs to act as common environments lead to relevant improvements in the performance. The enhancements arrive to almost double the cooling power of the original fridge without compromising its efficiency. The greater enhancements are obtained when the refrigerator may benefit from the presence of a decoherence-free subspace. The influence of coherent effects in the dissipation due to one- and two-spin correlated processes is also examined by comparison with an equivalent incoherent yet correlated model of dissipation.

10 + 4 pages, 5 figures. v2: minor corrections, accepted in New Journal of Physics

References in corpus (15)

• Coupling Superconducting Qubits via a Cavity Bus
• Quantum Thermodynamic Cycles and quantum heat engines
• Dynamics of the entanglement between two oscillators in the same environment
• Markovian master equations for quantum thermal machines: local vs global approach
• Markovian Master Equations: A Critical Study
• Quantum Thermodynamic Cycles and Quantum Heat Engines (II)
• Nonequilibrium fluctuations in quantum heat engines: Theory, example, and possible solid state experiments
• Testing the validity of the local and global GKLS master equations on an exactly solvable model
• Performance bound for quantum absorption refrigerators
• Local vs global master equation with common and separate baths: superiority of the global approach in partial secular approximation
• Otto refrigerator based on a superconducting qubit: classical and quantum performance
• Autonomous Quantum Refrigerator in a Circuit-QED Architecture Based on a Josephson Junction
• Unifying paradigms of quantum refrigeration: A universal and attainable bound on cooling
• Qubit absorption refrigerator at strong coupling
• Time-Energy and Time-Entropy Uncertainty Relations in Nonequilibrium Quantum Thermodynamics under Steepest-Entropy-Ascent Nonlinear Master Equations

Cited by in corpus (25)

• Quantum thermodynamic devices: from theoretical proposals to experimental reality
• Collision models can efficiently simulate any multipartite Markovian quantum dynamics
• Landauer vs. Nernst: What is the True Cost of Cooling a Quantum System?
• Quantum thermodynamically consistent local master equations
• Hybrid Thermal Machines: Generalized Thermodynamic Resources for Multitasking
• Three-qubit refrigerator with two-body interactions
• Quantum machines powered by correlated baths
• Collective effects on the performance and stability of quantum heat engines
• Roles of quantum coherences in thermal machines
• Superradiant many-qubit absorption refrigerator
• Minimal two-body quantum absorption refrigerator
• Quantum coherence enables hybrid multitask and multisource regimes in autonomous thermal machines
• Performance boost of a collective qutrit refrigerator
• Common environmental effects on quantum thermal transistor
• Cooling condition for multilevel quantum absorption refrigerators
• Key Issues Review: Useful autonomous quantum machines
• Dissipation-induced collective advantage of a quantum thermal machine
• Two-time weak measurement protocol for ergotropy protection in open quantum batteries
• Heat transfer in transversely coupled qubits: Optically controlled thermal modulator with common reservoirs
• Dicke superradiant enhancement of the heat current in circuit QED
• Certifying quantum enhancements in thermal machines beyond the Thermodynamic Uncertainty Relation
• Floquet analysis of a superradiant many-qutrit refrigerator
• Three qubits in less than three baths: Beyond two-body system-bath interactions in quantum refrigerators
• Charge-Preserving Operations in Quantum Batteries
• Minimizing Dissipation via Interacting Environments: Quadratic Convergence to Landauer Bound