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Control of Dipolar Dynamics by Geometrical Programming.

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We present quantum control methods using molecular tweezer arrays. Geometric reshaping suppresses decoherence and enhances spin squeezing for robust quantum computing.

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Area of Science:

  • Quantum Information Science
  • Atomic, Molecular, and Optical Physics

Background:

  • Molecular qubits offer extended coherence times for quantum information processing.
  • Controlling quantum many-body systems is crucial for advancing quantum technologies.

Purpose of the Study:

  • To theoretically analyze methods for quantum many-body control using molecular tweezer arrays.
  • To investigate dynamic rearrangement and static geometries for robust quantum control.

Main Methods:

  • Theoretical analysis of quantum many-body control via geometric reshaping of molecular tweezer arrays.
  • Utilizing molecular rotational qubits and their extended coherence times.
  • Investigating an actively rearranged short-range XY model and specific static geometries.

Main Results:

  • Demonstrated suppression of motional dephasing.
  • Achieved enhanced spin squeezing.
  • Identified a static geometry that significantly suppresses decoherence.

Conclusions:

  • Geometric reshaping of molecular tweezer arrays provides robust quantum control modalities.
  • These methods are well-suited for programmable quantum systems utilizing molecules.