Realizing Super- and Subradiance in Atomic Tweezer Arrays
Abstract
Modem quantum science and technology is poised to revolutionize the ways in which we measure time, navigate, compute and communicate. All modem quantum technologies require stable quantum systems with long coherence time. However, the coherence time of quantum systems is fundamentally limited by spontaneous decay. The core question that we address in this proposal is- Are there practical ways to suppress spontaneous decay and extend the coherence time of quantum systems. In this proposal, we will utilize strontium atoms in optical tweezer arrays to study how spontaneous decay can be controlled experimentally. Using arrays of strontium atoms spaced by about a micrometer and leveraging an internal transition at 2.9 micrometers wavelength, we will realize subwavelength arrays. For such arrays collective emission phenomena have been predicted, so¬called super- and subradiance. Superradiance can accelerate the emission of photons, subradiance holds the potential to fundamentally enhance coherence times. We will study these phenomena in various array geometries, leveraging our ability to generate tweezer arrays with acousto-optic deflectors and holographic metasurfaces. We will also develop tools to dynamically switch between super- and subradiance and, with that, control the stability of many-body quantum systems. Our findings may find practical applications in precision metrology, quantum computing, quantum memories and enable the construction of enhanced interfaces between atoms and photons in quantum networks. The research will be carried out in a university lab by undergraduate and graduate students, as well as postdoctoral researchers, making an important contribution to the education of a highly trained workforce in quantum technology. The results of this work will be broadly disseminated in scientific journals and conferences and will be featured in courses and outreach events for the general public.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2025
- Source ID
- FA95502410224
Entities
People
- Sebastian A Will
Organizations
- Air Force Office of Scientific Research
- Trustees of Columbia University in the City of New York
- United States Air Force