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Area of Science:

  • Quantum Computing
  • Atomic Physics
  • Quantum Information Science

Background:

  • Measurement-based quantum computing requires rapid, large-scale entanglement in qubit registers.
  • Atomic arrays are promising for quantum information storage, utilizing Rydberg states for entanglement.
  • Isolating specific atom pairs for gate operations is challenging due to long-range Rydberg interactions.

Purpose of the Study:

  • To engineer distance-selective Rydberg interactions for precise control in quantum computing.
  • To overcome the limitations of long-range interactions in atomic arrays.
  • To enable the creation of large-scale entanglement for quantum computation.

Main Methods:

  • Engineered distance-selective interactions via off-resonant laser coupling of molecular potentials between Rydberg atom pairs.
  • Utilized quantum gas microscopy to observe dressed interactions.
  • Employed many-body Ramsey interferometry to verify correlated phase evolution.

Main Results:

  • Demonstrated engineered interactions that are strongly peaked in distance.
  • Verified dressed interactions through observation of correlated phase evolution.
  • Identified atom loss and coupling to continuum modes as current limitations.

Conclusions:

  • The engineered interactions pave the way for creating large-scale entanglement in atomic arrays.
  • Mitigation strategies for atom loss and continuum coupling are outlined.
  • This work advances the development of scalable quantum computing architectures.