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Embedding quantum simulators for quantum computation of entanglement.

R Di Candia1, B Mejia2, H Castillo2

  • 1Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, 48080 Bilbao, Spain.

Physical Review Letters
|February 4, 2014
PubMed
Summary
This summary is machine-generated.

We introduce embedding quantum simulators for efficient quantum computation of entanglement monotones. This method maps entanglement onto observables, reducing experimental needs for pure and mixed quantum states.

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Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Quantum Simulation

Background:

  • Quantifying entanglement is crucial for understanding quantum systems.
  • Full quantum state tomography is experimentally demanding.

Purpose of the Study:

  • Introduce embedding quantum simulators for efficient entanglement monotone computation.
  • Develop a method to reduce experimental requirements for entanglement characterization.

Main Methods:

  • Encoding simulated quantum dynamics into an enlarged Hilbert space.
  • Mapping entanglement monotones to physical observables.
  • Applying the method to pure states and mixed states (with classical assistance).

Main Results:

  • Demonstrated efficient quantum computation of entanglement monotones.
  • Overcame the necessity of full tomography.
  • Significantly reduced experimental requirements.

Conclusions:

  • The embedding quantum simulator framework offers an efficient approach to entanglement quantification.
  • This method is applicable to both pure and mixed quantum states.
  • Paves the way for a general theory of enhanced quantum simulators.