Steady state entanglement beyond thermal limits

Abstract

Classical engines turn thermal resources into work, which is maximized for reversible operations. The quantum realm has expanded the range of useful operations beyond energy conversion, and incoherent resources beyond thermal reservoirs. This is the case of entanglement generation in a driven-dissipative protocol, which we hereby analyze as a continuous quantum machine. We show that for such machines the more irreversible the process the larger the concurrence. Maximal concurrence and entropy production are reached for the hot reservoir being at negative effective temperature, beating the limits set by classic thermal operations on an equivalent system.

4 figures, 10 pages

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Cited by in corpus (33)

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• Entanglement and thermokinetic uncertainty relations in coherent mesoscopic transport
• Critical heat current for operating an entanglement engine
• Autonomous multipartite entanglement engines
• Universal two-level quantum Otto machine under a squeezed reservoir
• Charging a quantum battery via non equilibrium heat current
• Heralded generation of maximal entanglement in any dimension via incoherent coupling to thermal baths
• Operational nonclassicality in minimal autonomous thermal machines
• Chiral Bell-state transfer via dissipative Liouvillian dynamics
• Amplitude tuning of steady state entanglement in strongly driven coupled qubits
• Influence of equilibrium and nonequilibrium environments on macroscopic realism through the Leggett-Garg inequalities
• Maximally effcient quantum thermal machines fuelled by nonequilibrium steady states
• Efficiency of optically pumping a quantum battery and a two-stroke heat engine
• Internal Geometric Friction in a Kitaev Chain Heat Engine
• Engineering entanglement between resonators by hot environment
• Stabilizing two-qubit entanglement with dynamically decoupled active feedback
• Quantum thermalization and vanishing thermal entanglement in the open Jaynes-Cummings model
• Maximal steady-state entanglement in autonomous quantum thermal machines
• Delay-induced spontaneous dark state generation from two distant excited atoms
• Feasible platform to study negative temperatures
• Entanglement versus Bell nonlocality of quantum nonequilibrium steady states
• Hot entanglement? -- Parametrically coupled quantum oscillators in two heat baths: instability, squeezing and driving
• Photovoltaic efficiency at maximum power of a quantum dot molecule
• Availing non-Markovian dynamics in effective negative temperature-based transient quantum Otto engines
• The second law and beyond in microscopic quantum setups
• Amplifying quantum correlations with quench dynamics in a quantum spin chain: Steady-states versus ground-states
• Finite-time dynamics of an entanglement engine: current, fluctuations and kinetic uncertainty relations
• Entanglement versus cooling in the system of a driven pair of two-level qubits longitudinally coupled with a boson mode field
• Efficient steady state entanglement generation in strongly driven coupled qubits
• Stationary two-qubit entanglement mediated by one-dimensional plasmonic nanoarrays