Quantum Cameras and Sub-Diffraction Imaging with Johannes Galatsanos

Johannes Galatsanos occupies an unusual dual perch in the quantum ecosystem. As a co-author of the inaugural MIT Quantum Index Report, he's helped map the entire quantum landscape at altitude; as co-founder and CEO of Diffraqtion, he's staked his career on one of its most under-discussed corners: quantum imaging. The company spun out of Saikat Guha's lab at the University of Maryland after more than a decade of DARPA-funded research, emerged from stealth in January 2026 with $4.2M in pre-seed funding, and is now racing toward on-sky telescope demonstrations and a 2028 satellite launch. This episode is for listeners who want a technically honest look at where the "quantum" label is doing real work in a sensor versus where it's shading into sophisticated photonics and analog computing. If you care about how quantum technologies actually reach the world — through markets, contracts, and hardware that ships — this conversation gives you a specific, concrete example to think with. What You'll Learn • Why a conventional camera can lose roughly 95% of the information a photon carries, and what quantum Fisher information theory says about recovering it • How Diffraqtion's device processes light directly in the photonic domain before converting it to electronic information — and why that matters for shot noise • The honest answer to "is this really quantum?" — including where the technology sits between quantum information theory, photonics, and analog computing • Why a 6U CubeSat with a 10-centimeter aperture can plausibly compete with school-bus-sized observation satellites for specific tasks • How a "diffractive neural network" runs image classification at the speed of light with negligible power consumption • The difference between Diffraqtion's hard-coded Gen 1 camera and the reprogrammable Gen 2 that can swap algorithms in orbit (canopy detection over the Amazon, ship detection over the Atlantic) • Why the Habitable Worlds Observatory needs a coronagraph capability — and how you can build one by processing light rather than blocking it • What quantum sensing needs from policy, capital, and PR to escape the shadow of quantum computing Resources & Links Guest & Company • Diffraqtion (https://diffraqtion.com/) — Company homepage; describes the technology, NASA/DARPA lineage, and the "quantum eye" framing referenced in the conversation. • Johannes Galatsanos on LinkedIn (  / johannesgalatsanosdueck  ) — Recent activity including SmallSat Europe, the NASA Space to Soil Challenge, and GQIG Summit talks on quantum imaging. Papers & Reports • Quantum Index Report 2025 (arXiv) (https://arxiv.org/abs/2506.04259) — The preprint of the MIT QIR, co-authored by Galatsanos. Essential reading for anyone trying to see the quantum landscape as a whole. • MIT Sloan — New MIT Report Captures State of Quantum Computing (https://mitsloan.mit.edu/ideas-made-t...) — Background on the QIR and Galatsanos's research role at the MIT Initiative on the Digital Economy. • MIT Sloan — Quantum Report Charts Growing Business Interest (https://mitsloan.mit.edu/ideas-made-t...) — Further QIR findings on the growth in corporate quantum mentions. Press & Coverage • Diffraqtion Pre-Seed Announcement (PR Newswire) (https://www.prnewswire.com/news-relea...) — Official release covering the $4.2M raise, DARPA contract, and founding team. • Breaking Defense — DARPA Backs Diffraqtion (https://breakingdefense.com/2026/01/d...) — The most in-depth interview on the DARPA SBIR contract and programmable light plates. • The Quantum Insider — Diffraqtion $4.2M Raise (https://thequantuminsider.com/2026/01...) — Investor context including quotes from Chad Rigetti; technical claims on resolution and processing. • Payload Space — Diffraqtion Emerges from Stealth (https://payloadspace.com/quantum-imag...) — Commercial framing around the 6U CubeSat cost model. • Defense One — Quantum Cameras Could Remake Space-Based Intelligence (https://www.defenseone.com/technology...) — Policy and defense framing. Sponsor • Cisco Universal Quantum Switch — Outshift by Cisco (https://outshift.cisco.com) — Cisco's incubation engine, building a scalable quantum network on open standards and vendor-agnostic architecture. Key Quotes & Insights • On quantum information loss: "When you do a direct image… you lose something like 95% of information from tha...