Harvard's Quantum Leap: Molecules as Qubits for Breakthrough Computing

January 22, 2025
Harvard's Quantum Leap: Molecules as Qubits for Breakthrough Computing
  • In a remarkable demonstration, the team achieved a two-qubit Bell state with 94% accuracy by manipulating the rotational alignment of the trapped molecules.

  • The study also details the creation of an iSWAP gate, a quantum logic circuit essential for generating entanglement, which enhances quantum computing capabilities.

  • Harvard scientists have achieved a significant breakthrough in quantum computing by successfully trapping molecules and performing quantum operations.

  • The findings, published in the journal Nature, focus on using ultra-cold polar sodium-cesium (NaCs) molecules as qubits, which are crucial for quantum information processing.

  • This accomplishment is the result of 20 years of dedicated research in the field, as emphasized by senior co-author Kang-Kuen Ni.

  • The research team cooled NaCs molecules to near absolute zero and utilized optical tweezers to securely trap them, allowing for precise control over their interactions.

  • The team also assessed errors from any remaining motion during operations and proposed improvements for future experiments to enhance stability and accuracy.

  • Kang-Kuen Ni highlighted that molecules offer unique internal structure properties, presenting new opportunities for advancing quantum technologies.

  • This breakthrough paves the way for the development of molecular quantum computers, leveraging the complex structures of molecules for enhanced computational power.

  • Funding for this groundbreaking study was provided by organizations such as the Air Force of Scientific Research and the National Science Foundation.

  • The research team included members from Ni's lab and physicists from the University of Colorado, showcasing collaboration in advancing quantum technology.

  • Quantum computing promises speeds exponentially faster than classical computers by harnessing quantum mechanics, with potential applications across various fields including medicine and finance.

Summary based on 3 sources


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