#quantum-computing

#quantum-computing

Within these tanks are sets of superconducting circuits etched into chips, all held by golden chandelierlike structures and cooled by liquid helium and liquid nitrogen. The superconducting chips are fabricated in the clean room next door, where white-suited figures work with room-size machinery, fume hoods and acid baths. The facilitythe chips, the tanks, the clean room and the enormous reserves of liquid nitrogen behind the buildingare all deployed in service of a single dream: quantum computers.

The quantum computing complex is taking a sharp hit Friday afternoon, with all four major U.S.-listed pure-play names selling off in unison. IonQ is down 9% intraday to roughly $52.50, while Quantum Computing Inc. is the worst performer of the group as it's down 9% to $10.71. D-Wave Quantum is off 7% around $20.66, and Rigetti Computing is holding up best of the four with a 6% decline near $18.11. The coordinated 6% to 9% slide caps a hot month for the group and lands squarely in the middle of the U.S. trading session.

Israel Englander's Millennium Management bought roughly 2.27 million shares of D-Wave Quantum ( NYSE: QBTS) in late 2024 for approximately $16.4 million, according to a 24/7 Wall St. article published May 28, 2025. One year later, the verdict is clear: the billionaire was right on the thesis, but the stock chart since then resembles a rollercoaster missing a few safety bars.

The European Union's new Scaleup Europe Fund has made its first investment, leading a $160m round in UK-based Quantum Motion. The deal is the largest single funding round any European silicon-spin-qubit company has secured to date and the first major late-stage commitment of the EU vehicle that has been in design at the European Investment Fund for the better part of two years.

QuantWare has closed a Series B round of €152m ($178m), the largest ever raised by a Dutch deeptech company and the largest private round any dedicated quantum-processor company has closed worldwide.

QTUM packages roughly 84 companies across the quantum and machine-learning supply chain, from chip equipment makers to defense contractors to early-stage hardware specialists, using a modified equal-weight method that caps single-name risk.

Cisco's Universal Quantum Switch addresses the challenge of connecting quantum systems by routing quantum information while preserving it, a significant advancement in quantum networking.

Ramana Kompella explained that traditional routing methods such as TCP/IP are not suitable for quantum networks because they rely on classical physics. Quantum networks utilize entanglement, where endpoints are connected using entangled photon pairs, allowing for instantaneous information transfer once entanglement is established.

In a lab on the western edge of Paris, a technician called Remi makes some adjustments with a spanner to a cryostat, a device that cools to minus 273 degrees Celsius, where even the tiniest particles are still.