Thursday, 23 July 2026 Sign in

What are spin qubits?

IBM Research 23 July 2026, 11:00

IBM announced it will acquire HRL Laboratories to expand its quantum computing capabilities, particularly gaining access to HRL's expertise in silicon-spin qubit technology. HRL recently demonstrated a silicon-spin quantum computer with 54 quantum dots capable of functioning as up to 18 qubits, using exchange-only qubit architecture with three electrons per qubit. The acquisition will strengthen IBM's long-term plans to deliver useful quantum computing while adding quantum sensing and quantum networking capabilities to complement its existing superconducting qubit research.

Why it matters

Spin qubits are an important element of IBM’s recent HRL Laboratories acquisition.

Read the full story at IBM Research

Acquisitions

Every AI story that matters,
in your inbox by 8am.

TLDRocket reads 60+ sources, removes duplicate coverage, and summarises the day in two minutes. Free, no spam, unsubscribe anytime.

TLDRocket 23 July 2026

The AI industry's infrastructure binge is hitting a hard limit. Google burned cash for the first time in its history, spending more on AI infrastructure than it generates quarterly—a stark inversion of the company that built a search-driven money machine. Sequoia's $300 million bet on Etched, valuing the chip startup at $10.3 billion, reflects the same calculus: if you can't afford the compute, build the hardware. Etched's inference-optimized silicon and competitors like Cursor's model router are solving a real problem—frontier models like Claude Opus cost too much for routine work. Cursor users report saving 30–50% by routing simple tasks to cheaper models, while Runway and Ramp built similar routers for their respective domains. The proliferation suggests the all-frontier-all-the-time era is ending.

Read the full briefing →

What are spin qubits?

Why it matters

Related stories

Every AI story that matters, in your inbox by 8am.

Every AI story that matters,
in your inbox by 8am.