RQC Seminar

297th RQC Seminar

• Speaker

  Dr. Brandon Grinkemeyer
  ( Cavilinq )

• Date

  16:00-17:00, (4:00 p.m.-5:00 p.m.) Friday, August 28, 2026

• Venue

  Hybrid( Zoom,
  Wako HQ 2F L Conference Room/和光地区 本部棟2階 大会議室,
  Meeting room W319-321. S41 cooperation center)

• Title

  Photonic Interfaces for Neutral Atom Quantum Computers

• Inquiries

  sylvain.deleseleuc[at]riken.jp

Abstract
Neutral atom arrays have emerged as one of the leading platforms for quantum information science, and integrating them with photonic interfaces would unlock a new class of distributed quantum applications, from quantum sensing and long-distance communication to blind computing and networking processors into larger fault-tolerant systems. Coupling atoms to optical cavities is a particularly promising route, enhancing atom-photon interactions and enabling entanglement generation orders of magnitude faster than free-space approaches.
In this talk, I will present a series of experiments that develop the key building blocks of such an interface and demonstrate their compatibility with state-of-the-art neutral-atom processors. Using atoms in optical tweezers coupled to nanophotonic and fiber Fabry-Perot cavities, we demonstrate methods for cavity-mediated entanglement, fast qubit readout, and coherent transport between these cavity interfaces and free space. Finally, I will introduce a new buckled-membrane micromirror technique that produces ultra-high-finesse cavities in a compact, scalable geometry compatible with existing neutral-atom processors.