Quantum Computing Quantum News

Researchers send entangled qubit states through a communication channel for the first time

February 24, 2021

Researchers send entangled qubit states through a communication channel for the first time

The results, published February 24, 2021 in Nature, could help make quantum computing more feasible and could lay the groundwork for future quantum communication networks. In a breakthrough for quantum computing, University of Chicago researchers have sent entangled qubit states through a communication cable linking one quantum network node to a second node. Creating a scaled, networked quantum computer In the future, quantum computers will likely be built out of modules where families of entangled qubits conduct a computation. “Developing methods that allow us to transfer entangled states will be essential to scaling quantum computing,” said Prof. Andrew Cleland, who led the research. Sending entangled photons through a network Qubits, or quantum bits, are the basic units of quantum information. They connected one qubit in each node to the cable and then sent quantum states, in the form of microwave photons, through the cable with minimal loss of information. To send the entangled states through the communication cable—a one-meter-long superconducting cable—the researchers created an experimental set-up with three superconducting qubits in each of two nodes.

Article from Phys.org.