Which company announced plans to establish a quantum research lab in 2025?

Nvidia is the correct answer. In recent news and future projections, Nvidia has been actively expanding its research and development into quantum computing, including plans for dedicated labs to advance the field, often leveraging its GPU technology for quantum simulation and hybrid quantum-classical computing. This reflects their strategic move into emerging high-performance computing domains.

• IBM is a pioneer in quantum computing with existing quantum labs and hardware (e.g., IBM Quantum Experience), but the question specifies an announcement for 2025.
• Google also has significant quantum computing efforts (e.g., Sycamore processor) and labs, but the specific 2025 announcement points to Nvidia.
• Microsoft is heavily invested in topological quantum computing and has research labs, but again, the specific 2025 announcement aligns with Nvidia's stated plans.