Researchers Unlock New Opportunities for Quantum Technologies by Extending Established Models of Light-Matter Interactions

Strategic Insights -

Physicists at the University of Warsaw and Emory University have made a groundbreaking discovery in the field of quantum technologies. The team, led by Dr. Joao Pedro Mendonca, studied how atoms' mutual interactions change the way they collectively interact with light. In a paper published in Physical Review Letters, they extended established models of this phenomenon, revealing that direct atom-atom interactions can strengthen a collective burst of light known as superradiance.

Key Takeaways:

  • The study shows that intrinsic interactions between nearby emitters can lower the threshold for superradiance and reveal a previously overlooked ordered state with superradiant properties.
  • Accounting for entanglement is essential to chart the full set of states in light-matter systems, and the research clarifies how microscopic interactions between nearby emitters shape those dynamics.
  • The study has significant implications for the development of quantum technologies, including quantum batteries, which can charge and discharge faster and more efficiently by exploiting collective quantum correlations.
  • Superradiant dynamics can accelerate both charging and discharging, improving energy-transfer efficiency.
  • The research team introduces a computational approach that keeps entanglement explicit, capturing correlations both within and across subsystems.
  • The study's findings can be applied to other platforms, including quantum networks and precision sensors, where control over light-matter correlations is also relevant.
  • The project originated from an international collaboration that combined expertise from multiple institutions, highlighting the importance of international mobility and collaboration in achieving breakthroughs.

Statistics:

  • The Faculty of Physics at the University of Warsaw consists of over 250 academic teachers.
  • About 1000 students and over 150 doctoral students study at the Faculty of Physics UW.
  • The University of Warsaw is among the 300 best universities in the world, educating in the field of physics according to Shanghai's Global Ranking of Academic Subjects.
  • The research team used a computational approach that considers entanglement between photons and atoms, which is essential for understanding the full set of states in light-matter systems.
  • The study highlights the importance of accounting for entanglement in light-matter interactions, which can affect the threshold for superradiance and the emergence of ordered states.

Sources:

  • Physical Review Letters
  • DOI: https://doi-org.sdpl.idm.oclc.org/10.1103/z8gv-7yyk
  • Science report: Joao Pedro Mendonca, Krzysztof Jachymski, and Yao Wang, "Role of Matter Interactions in Superradiant Phenomena Phys. Rev. Lett. 135, 133601"
  • University of Warsaw Faculty of Physics home page: https://www.fuw.edu.pl/faculty-of-physics-home.html
  • Press service of the Faculty of Physics at the University of Warsaw: https://www.fuw.edu.pl/press-releases.html