Harvard Scientists Achieve Quantum Computing Breakthrough with Trapped Molecules as Qubits

January 22, 2025
Harvard Scientists Achieve Quantum Computing Breakthrough with Trapped Molecules as Qubits
  • This breakthrough paves the way for the development of molecular quantum computers, which could leverage the complex structures of molecules for enhanced computational capabilities.

  • Future experiments will aim to improve the stability and accuracy of this molecular quantum computing setup, potentially leading to further innovations in the field.

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

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

  • This groundbreaking research marks the first time ultra-cold polar sodium-cesium (NaCs) molecules have been utilized as qubits, which are essential for quantum information processing.

  • The study highlights the importance of trapping molecules in ultra-cold environments to control their complex internal structures and mitigate disruptive movements.

  • Historically, molecules were not used in quantum computing due to their complex structures, which posed challenges in control compared to simpler particles.

  • The research team successfully entangled two molecules, achieving a two-qubit Bell state with an impressive accuracy of 94% through precise manipulation of their relative rotation.

  • Central to this experiment was the creation of an iSWAP gate, which is crucial for generating entanglement, a property that enhances quantum computing capabilities.

  • Quantum computing exploits the principles of quantum mechanics, promising speeds exponentially faster than traditional computing, with potential applications across various fields including medicine and finance.

  • Senior co-author Kang-Kuen Ni emphasized that this achievement is the culmination of 20 years of research in the field, showcasing the dedication of the team.

  • The research team comprised members from Ni's lab and physicists from the University of Colorado, highlighting a collaborative effort in advancing quantum technology.

Summary based on 2 sources


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Researchers make leap in quantum computing

Harvard Gazette • Jan 21, 2025

Researchers make leap in quantum computing

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