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Summary
This summary is machine-generated.

Quantum machines can generate entanglement more effectively by embracing irreversible processes, even utilizing negative effective temperatures to surpass classical limits.

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Area of Science:

  • Quantum thermodynamics
  • Quantum information science
  • Driven-dissipative systems

Background:

  • Classical thermodynamics limits work extraction to reversible processes.
  • Quantum systems offer new resources beyond heat, like entanglement.
  • Driven-dissipative protocols are key to quantum information processing.

Purpose of the Study:

  • Analyze entanglement generation in a driven-dissipative protocol as a continuous quantum machine.
  • Investigate the relationship between irreversibility and entanglement in quantum machines.
  • Explore the role of negative effective temperatures in enhancing quantum operations.

Main Methods:

  • Modeling a continuous quantum machine using a driven-dissipative protocol.
  • Quantifying entanglement using concurrence.
  • Analyzing entropy production in the quantum system.
  • Comparing quantum operations with classical thermal operations.

Main Results:

  • Entanglement generation increases with process irreversibility.
  • Maximal concurrence is achieved at negative effective temperatures.
  • Entropy production also peaks at negative effective temperatures.
  • Quantum operations exceed limits of equivalent classical thermal operations.

Conclusions:

  • Irreversibility can be a resource for enhancing quantum operations like entanglement generation.
  • Negative effective temperatures offer a pathway to surpass classical thermodynamic bounds.
  • Driven-dissipative quantum machines provide a novel framework for quantum information processing.