Qubit absorption refrigerator at strong coupling
arXiv:1709.02835 · doi:10.1088/1367-2630/aa9b75
Abstract
We demonstrate that a quantum absorption refrigerator can be realized from the smallest quantum system, a qubit, by coupling it in a non-additive (strong) manner to three heat baths. This function is un-attainable for the qubit model under the weak system-bath coupling limit, when the dissipation is additive. In an optimal design, the reservoirs are engineered and characterized by a single frequency component. We obtain then closed expressions for the cooling window and refrigeration efficiency, as well as bounds for the maximal cooling efficiency and the efficiency at maximal power. Our results agree with macroscopic designs and with three-level models for quantum absorption refrigerators, which are based on the weak system-bath coupling assumption. Beyond the optimal limit, we show with analytic calculations and numerical simulations that the cooling efficiency varies in a non-universal manner with model parameters. Our work demonstrates that strongly-coupled quantum machines can exhibit function that is un-attainable under the weak system-bath coupling assumption.
References in corpus (46)
- Quantum Thermodynamics
- The role of quantum information in thermodynamics --- a topical review
- Quantum Thermodynamics
- Fundamental aspects of steady-state conversion of heat to work at the nanoscale
- Extractable work from ensembles of quantum batteries. Entanglement helps
- A nano heat engine beyond the Carnot limit
- Quantum heat engines and refrigerators: Continuous devices
- Efficiency at maximum power: An analytically solvable model for stochastic heat engines
- Efficiency at maximum power of low dissipation Carnot engines
- How small can thermal machines be? The smallest possible refrigerator
- Universality of efficiency at maximum power
- Quantum Equivalence and Quantum Signatures in Heat Engines
- A spin-boson thermal rectifier
- Performance of discrete heat engines and heat pumps in finite time
- Quantum-enhanced absorption refrigerators
- Extractable Work from Correlations
- The Quantum Absorption Refrigerator
- Virtual qubits, virtual temperatures, and the foundations of thermodynamics
- Thermodynamical Control by Frequent Quantum Measurements
- Nonequilibrium thermodynamics in the strong coupling and non-Markovian regime based on a reaction coordinate mapping
- Entropy production and thermodynamic power of the squeezed thermal reservoir
- Coherence and measurement in quantum thermodynamics
- Performance bound for quantum absorption refrigerators
- Performance of a quantum heat engine at strong reservoir coupling
- Minimal universal quantum heat machine
- Coherence-assisted single-shot cooling by quantum absorption refrigerators
- Molecular heat pump
- Heat flow in nonlinear molecular junctions
- Markovian Master Equation and Thermodynamics of Two-level System in Strong Laser Field
- The smallest refrigerators can reach maximal efficiency
- Nonequilibrium Energy Transfer at Nanoscale: A Unified Theory from Weak to Strong Coupling
- Strongly coupled quantum heat machines
- Stochastic thermodynamics in the strong coupling regime: An unambiguous approach based on coarse-graining
- Non-equilibrium quantum heat machines
- Realising a quantum absorption refrigerator with an atom-cavity system
- Non-equilibrium spin-boson model: counting statistics and the heat exchange fluctuation theorem
- Stochastic pumping of heat: Approaching the Carnot efficiency
- Quantum thermodynamics in strong coupling: heat transport and refrigeration
- Multi-stage quantum absorption heat pumps
- Minimal model of a heat engine: An information theory approach
- Single electron transistor strongly coupled to vibrations: Counting Statistics and Fluctuation Theorem
- Work extraction via quantum nondemolition measurements of qubits in cavities: Non-Markovian effects
- Thermodynamics of Quantum-Jump-Conditioned Feedback Control
- Interplay of different environments in open quantum systems: Breakdown of the additive approximation
- Thermodynamics of the polaron master equation at finite bias
- Nonlinear thermal control in an N-terminal junction
Cited by in corpus (30)
- Quantum thermal absorption machines: refrigerators, engines and clocks
- Fermionic reaction coordinates and their application to an autonomous Maxwell demon in the strong coupling regime
- Repeated interactions and quantum stochastic thermodynamics at strong coupling
- Quantum thermodynamically consistent local master equations
- Coherence and decoherence in quantum absorption refrigerators
- Refrigeration beyond weak internal coupling
- Coherences and the thermodynamic uncertainty relation: Insights from quantum absorption refrigerators
- Boosting the performance of small autonomous refrigerators via common environmental effects
- Three-qubit refrigerator with two-body interactions
- Current fluctuations in quantum absorption refrigerators
- Non-Markovian thermal operations boosting the performance of quantum heat engines
- Measurability of nonequilibrium thermodynamics in terms of the Hamiltonian of mean force
- Superradiant many-qubit absorption refrigerator
- Thermoelectric performance of topological boundary modes
- Unconventional four-terminal thermoelectric transport due to inelastic transport: cooling by transverse current, transverse thermoelectric effect and Maxwell demon
- Cyclic quantum engines enhanced by strong bath coupling
- The reaction coordinate mapping in quantum thermodynamics
- Performance boost of a collective qutrit refrigerator
- Cooling condition for multilevel quantum absorption refrigerators
- Key Issues Review: Useful autonomous quantum machines
- Effective-Hamiltonian theory: An approximation to the equilibrium state of open quantum systems
- Universal bounds on cooling power and cooling efficiency for autonomous absorption refrigerators
- Bounds on fluctuations for ensembles of quantum thermal machines
- Transport and energetic properties of a ring of interacting spins coupled to heat baths
- Strongly coupled quantum Otto cycle with single qubit bath
- Non-equilibrium boundary driven quantum systems: models, methods and properties
- Quantum refrigeration powered by noise in a superconducting circuit
- Dissipative features of the driven spin-fermion system
- Enhancing the Performances of Autonomous Quantum Refrigerators via Two-Photon Transitions
- Quantum thermal rectification via state-dependent two-photon dissipation