quantum-hardware
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The computer made of atoms has a harder problem: staying useful
QuEra can arrange atoms with light and rent you time on a 256-qubit machine. Its next wager is less theatrical and more difficult: correcting mistakes fast enough that a quantum computer can earn its place beside a supercomputer.
The Quantum Computer That Wants a Seat Beside the GPU
AI keeps asking for more power. Sygaldry's wager is that the next useful server will have more than one kind of qubit - and a place beside the GPUs already humming in the data center.
The Computer That Replaces Its Own Atoms
Atom Computing thinks the route to a useful quantum machine begins with a strange convenience: when an atom misbehaves, nature has made billions of identical replacements.
Quantinuum’s $1.68 Billion Bet: Make Quantum Computing Boring Enough to Buy
Quantinuum has 98 trapped ions, an enterprise software stack and fresh public-market money. Its harder experiment is proving that exceptional fidelity can become an ordinary purchase order.
Qunnect
Qunnect is a New York-based deep-tech company building hardware that turns ordinary telecom fiber into scalable quantum networks. Its room-temperature, field-deployable devices distribute entangled photons over existing infrastructure - no cryogenics or vacuum chambers required. The flagship Carina product suite powers real-world quantum testbeds in New York and Berlin, and is sold to customers across finance, energy, telecom, and defense.
Peter Barrett
Peter Barrett is the Founder and General Partner of Playground Global, a Palo Alto-based deep tech venture firm managing over $1.2 billion across three funds. An Australian-born engineer turned investor, Barrett holds 100+ patents, gave Elon Musk one of his first jobs in the 1990s, and built the world's most popular IPTV platform at Microsoft before pivoting to backing founders working on problems that sit 'somewhere between improbable and impossible.' Playground Global's portfolio spans quantum computing, robotics, synthetic biology, and energy transition — representing Barrett's conviction that the computing and industrial revolutions are still ahead of us.