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Noise-Induced Quantum Synchronization.

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Summary
This summary is machine-generated.

Noise can induce synchronization in quantum spin chains. Even noise on one spin can synchronize the chain

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Area of Science:

  • Quantum physics
  • Condensed matter physics
  • Synchronization phenomena

Background:

  • Synchronization is a common phenomenon across scientific disciplines.
  • Quantum systems offer unique platforms for studying synchronization dynamics.

Purpose of the Study:

  • Investigate noise-induced synchronization in a quantum spin chain.
  • Analyze the conditions and characteristics of synchronization in quantum systems.
  • Explore the role of entanglement in noise-induced synchronization.

Main Methods:

  • Utilized a quantum XY model with a transverse field.
  • Applied local Gaussian white noise to the spin chain.
  • Analyzed endpoint magnetizations for synchronization.
  • Quantified entanglement between synchronized spins.

Main Results:

  • Demonstrated stable (anti)synchronization between endpoint magnetizations.
  • Showed that noise on a single spin is sufficient for synchronization.
  • Found that synchronized end spins exhibit entanglement.
  • Determined the optimal noise amplitude for fastest synchronization.

Conclusions:

  • Noise-induced synchronization is achievable and controllable in quantum spin chains.
  • Entanglement plays a role in the synchronized states of quantum systems.
  • Synchronization speed can be optimized and is bounded by fundamental physical limits.