Key Moments
- Cisco introduced a prototype switching chip. It links different quantum computers over fiber-optic networks.
- The device runs at room temperature. It translates between systems such as atomic and superconducting quantum architectures.
- Executives say large quantum networks may emerge in the 2030s. However, security uses could appear in about three years.
Cisco Targets a Quantum Networking Role
By Stephen Nellis
SAN FRANCISCO, April 23 (Reuters) – Cisco Systems introduced a new switching chip on Thursday. The company says it can connect quantum computers built on different technologies. As a result, Cisco aims to support a future quantum internet.
Other tech firms focus on building quantum processors. For example, Google and IBM develop their own systems. In contrast, Cisco focuses on connectivity. It works with multiple hardware makers instead of competing with them.
Bridging Diverse Quantum Architectures
Quantum computers use different physical designs. Some rely on rubidium atoms in a vacuum. Others use superconducting materials at near absolute zero temperatures.
Cisco’s chip operates at room temperature. It uses standard fiber-optic cables. Therefore, it can act as a translator between different quantum systems.
“You can speak any language,” said Vijoy Pandey of Cisco.
Timeline and Early Use Cases
Cisco expects large quantum networks in the 2030s. Jeetu Patel, Cisco’s president and chief product officer, shared this timeline. However, he said early applications could arrive sooner.
The chip is already a working prototype. In addition, Cisco expects early commercial use within three years. Cybersecurity will likely be the first application area.
Quantum Principles Applied to Network Security
Quantum mechanics allows particles to exist in multiple states at once. They remain in this state until measured. This idea is often illustrated by Schrödinger’s cat thought experiment.
Cisco uses this principle for network security. It connects quantum sensors into an entangled network. If someone observes the system, the state changes.
As a result, interference becomes detectable. This could help identify intrusions or malicious activity.
“If you can detect behaviors through a quantum switch, it changes your defense posture,” Patel said.
Summary of Cisco’s Quantum Switch Prototype
| Aspect | Details |
|---|---|
| Product type | Prototype quantum switching chip |
| Primary function | Links different quantum computers and sensors |
| Operating environment | Room temperature using fiber-optic networks |
| Architectures targeted | Atomic systems and superconducting systems |
| Early applications | Cybersecurity and threat detection |
| Long-term vision | Quantum internet expected in the 2030s |
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