Quantum Computing · Emerging Tech
The first quantum revolution gave us the laser, the transistor, and the MRI machine — all built on quantum rules nobody could yet control.
MIT researchers say the second one is already underway, and this time, they're not just observing quantum mechanics. They're building with it.
MIT has launched Quantum@MIT, an initiative led by Paola Cappellaro that unites the Institute's quantum sensing, computing, communication, and education efforts under one roof. Researchers across MIT are working on diamond-based quantum sensors, ultracold atom simulations, quantum repeaters for secure long-distance communication, and "magic angle" twisted graphene that could make superconductors more practical. The stakes go beyond physics departments: quantum tools are already being explored for faster drug discovery, better climate models, and more efficient batteries. But as MIT's own researchers acknowledge, the field's biggest breakthroughs — like truly powerful quantum computers — still depend on further basic research, not just engineering.
MIT's Quantum@MIT initiative brings together sensing, computing, communication, and education under one unified push.
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MIT says a second quantum revolution is underway, moving from observing quantum mechanics to actually building with it. This article covers what "quantum advantage" means, the diamond-based sensors already working today, how ultracold atoms are used to simulate physics classical computers can't, the race to build a quantum internet, the "magic angle" graphene trick that could make superconductors practical, and where all of this could actually show up in medicine, climate science, and energy.
Understand
2. What Actually Counts as "Quantum Advantage" 3. The Quantum Sensors That Are Already WorkingEvaluate
4. Cooling Atoms Down to Almost Nothing 5. Building a Quantum Internet, One Repeater at a Time 6. The Magic Angle That Could Make Superconductors PracticalFinal Take
8. Manohar InsightMIT Says We're Already Living Through the Second Quantum Revolution
Quantum science and engineering ask researchers to take quantum mechanics — the rules originally developed to describe subatomic particles — and put them to work in real devices.
The first quantum revolution, in the 20th century, came from simply observing those quantum properties. That observation alone was enough to give us lasers, the transistor, MRI machines, and semiconductors.
| First Quantum Revolution | Second Quantum Revolution |
|---|---|
| Observed quantum properties | Actively engineers and controls them |
| Lasers, transistors, MRI, semiconductors | Quantum sensors, computers, repeaters, simulators |
| 20th century | Happening now |
The second revolution, MIT researchers argue, is happening right now — a shift from observation to actualization, engineering quantum effects directly rather than just noticing them.
Leading that push at MIT is Paola Cappellaro, the Ford Professor of Engineering and head of the MIT Quantum Engineering Group, who directs a new unifying effort called Quantum@MIT.
She points to "the strong link between fundamental research and its potential applications" as one of the most rewarding parts of the field right now.
Quantum@MIT's job is to bring together the Institute's scattered quantum sensing, computing, communication, and education programs, so fundamental discovery and real-world technology develop side by side rather than in separate silos.
What Actually Counts as "Quantum Advantage"
Quantum information processing is the part of the field most people picture when they hear "quantum computer" — and it revolves around a specific idea called quantum advantage.
As quantum devices get more sophisticated, the range of problems where that advantage applies keeps broadening.
MIT physics professor Aram Harrow is one of the researchers working to expand and understand that advantage, drawing on communication complexity and quantum algorithm design.
Part of his work explores how entanglement scales in many-body quantum systems — essentially, how the "quantumness" of a system changes as it grows larger and more complex.
The MIT Center for Quantum Engineering, one of only a handful of dedicated quantum engineering programs in the world, is where much of this bridging work happens — connecting computer science, mathematics, physics, and engineering.
It's directed by William D. Oliver, who frames the discipline itself as distinctly MIT's kind of problem to work on.
The Quantum Sensors That Are Already Working
Of all the quantum technologies MIT is developing, sensing is the one that's already furthest out of the lab and into practical use.
Quantum sensors reach sensitivities and spatial resolutions that ordinary, "classical" sensors simply can't match — and they're already improving navigation, bioimaging, and the study of materials like batteries.
One of the most promising platforms for this is quantum spins in diamond — tiny defects in the diamond's crystal lattice that behave as exquisitely sensitive quantum sensors.
Guoqing Wang, who researches this platform, wants "to dig more deeply into the physics" behind how these diamond spin defects actually work.
The eventual goal is to use that understanding for new kinds of quantum simulation and sensing — including transporting quantum information between different spin defects entirely.
Cooling Atoms Down to Almost Nothing
Some of MIT's quantum work traces back decades, to a Nobel Prize-winning discovery that still shapes the field today.
Wolfgang Ketterle won the 2001 Nobel Prize in Physics for producing a Bose-Einstein condensate — a fifth state of matter that appears when gas particles are cooled to nearly absolute zero.
That achievement laid groundwork well beyond precision measurement — it also set the stage for quantum simulation, where researchers use controlled quantum systems to model physics that classical computers struggle with.
These simulations can be exponentially more accurate than current computational models, making them a potential proving ground for discovering new materials or chemistry.
The MIT-Harvard Center for Ultracold Atoms builds directly on this foundation, working to give researchers greater control and programmability over quantum-entangled systems of low-temperature atoms and molecules.
It's a feedback loop: better quantum simulation improves control over cold atoms, and better cold-atom control improves the simulations themselves.
Building a Quantum Internet, One Repeater at a Time
Quantum computers and sensors are only as useful as their ability to communicate with each other — and quantum communication has its own, much stricter rules.
Ordinary telecommunications repeaters simply receive a signal and pass it along. Quantum systems need to preserve something far more fragile: quantum coherence, across distances ranging from about the width of a human hair to hundreds of kilometers.
MIT, Harvard, and MIT Lincoln Laboratory have already put quantum repeaters to a real test, using optical fiber to connect all three campuses over a distance of 43 kilometers.
That link is a genuine step toward longer-distance, secure transfer of quantum information — the kind of infrastructure a future quantum internet would actually need.
Lincoln Laboratory, described as a vital MIT partner on multiple fronts of quantum research, plays a significant role in pushing this specific effort forward.
The Magic Angle That Could Make Superconductors Practical
One of MIT's more striking quantum discoveries didn't come from ultracold atoms or diamond defects at all — it came from twisting a single sheet of graphene.
Pablo Jarillo-Herrero and his research team found that graphene, just one atom thick, can become either an insulator or a superconductor depending on the precise angle it's twisted to.
Researchers now call this the "magic angle," and Jarillo-Herrero's group continues to explore just how powerful this uniquely tunable material can be.
Their recent findings could serve as a blueprint for designing practical, room-temperature superconductors — materials that conduct electricity with zero resistance without needing extreme cold to do it.
Today's superconductors typically require deep cooling to function, which is a major barrier to using them widely. A room-temperature version would remove that barrier entirely.
If that blueprint pans out, it could make quantum computing itself dramatically more accessible, since many current quantum computer designs depend on superconducting components.
From Drug Discovery to Climate Models: Where This Could Actually Help
Quantum research at MIT isn't confined to physics labs. Several groups are aiming it directly at problems in medicine, climate, and energy.
In health care, quantum sensors are showing near-term promise for biological applications, while separately, Haoyang "Oscar" Wu is combining quantum chemistry with deep-learning methods to speed up small-molecule screening in drug development.
That combination could meaningfully shorten how long it takes to identify promising new drug candidates, offering earlier hope to patients waiting on treatments.
On climate, quantum computing may improve simulations used to discover new chemistry or materials — better batteries, better solar cells, more efficient chemical reactions — while pervasive quantum sensing could sharpen measurements of subtle climate shifts.
Sahil Pontula, a Hertz Foundation fellow, is working at a related intersection: using nonlinear and quantum optics to generate reliable macroscopic quantum states of light for energy applications, including enhanced batteries and light-to-electricity conversion.
None of this happens without people trained to build it. MIT xPRO now offers courses like Quantum Computing Fundamentals, aimed at preparing both a specialized quantum workforce and a broader quantum-savvy one across other industries.
MIT researchers, including William Oliver and Presidential Advisor Maria Zuber, are also shaping the national policy conversation around how quantum technology gets regulated and deployed.
Manohar Insight
What I find most telling about this overview isn't any single breakthrough — it's how many different disciplines are converging on the word "quantum" at the same time.
Diamond defects, ultracold atoms, twisted graphene, and optical fiber links sound like they belong to entirely separate fields. Here, they're all chapters of the same unifying effort.
That's really what Quantum@MIT is betting on: that fundamental research and real-world application don't have to wait for each other in sequence anymore.
Quantum sensing is the clearest proof this bet is already paying off — it's genuinely deployed today, not just promised for later.
Quantum computing is a different story. Even MIT's own researchers are candid that the full power of quantum computers still depends on breakthroughs that haven't happened yet.
I'd read this less as a victory lap and more as a progress report — a field mature enough to point at working sensors and a 43-kilometer fiber link, while still being honest about what remains unsolved.
The first quantum revolution happened to us, almost by accident of observation. This one is being built on purpose — and MIT clearly intends to be one of the places doing the building.
Join the Signal
Of everything covered here — sensing, computing, communication, or materials like magic-angle graphene — which do you think will reach everyday life first? Share your take in the comments.
#QuantumComputing #QuantumSensing #MIT #QuantumEngineering #Superconductors #EmergingTech #KMManoharInsights
Explore More
Bilayer Boron Could Nearly Double the Superconductivity Record, New Study PredictsAnother material pushing the same frontier as MIT's magic-angle graphene work: superconductivity without extreme cold.
Quantum Teleportation at 4K: The Microwave Breakthrough Powering the Future Quantum InternetA different piece of quantum internet infrastructure, tackling the same coherence problem as MIT's repeater work.
Quantum Technology 2026: 5 Breakthroughs Changing the FutureA wider snapshot of where quantum research stands right now, beyond MIT's own labs.
Superconductivity Switch Breakthrough: How Twisted Bilayer Graphene Can TurnA closer look at the exact "magic angle" graphene phenomenon behind MIT's superconductor blueprint.
Designer Superconducting Diamond: The Quantum Breakthrough That Could Redefine Future Computing, Electronics & Multi-Modal Quantum ChipsDiamond shows up again here too — this time engineered for superconducting quantum chips, not sensing.
About the Author
K M Manohar is an independent Sci-Tech writer and research curator who explains breakthrough discoveries that are shaping the future of technology.
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