Accepting ‘Quantum Volume’ as a Metric for Quantum Computers

Accepting ‘Quantum Volume’ as a Metric for Quantum Computers Why quantum volume is vital for plotting the path to quantum advantage Key points… +  Measuring the computational ability of quantum computers is—as is anything involving quantum systems—a complex problem. Counting the number of qubits in a quantum computer to determine computational power is too simplistic […]

Forget the Entanglement; Here’s Quantum Error Correction Without It

Forget the Entanglement; Here’s Quantum Error Correction Without It Quantum error correction assisted quantum metrology without entanglement Excerpts and salient points ~ +  Quantum information science has gained prominence as an area of research in the recent decades. One of the key promises of the field is that the the quantum regime contains intrinsic advantages […]

Qubits Communicating Through “Topological Radio Channels”

Qubits Communicating Through “Topological Radio Channels” Topological photonics offers route to qubit-to-qubit communication Excerpts and salient points ~ +  A new toolbox for sophisticated quantum simulators, in which qubits can directly communicate through so-called “topological radio channels”, has been proposed by physicists in Germany and Spain. Researchers led by Alejandro González-Tudela at the Max Planck […]

9 Lives or 20 Qubits, It’s Schrodinger’s Cat

9 Lives or 20 Qubits, It’s Schrodinger’s Cat Schrödinger’s cat with 20 qubits In brief… +  Dead or alive, left-spinning or right-spinning—in the quantum world particles such as the famous analogy of Schrödinger’s cat can be all these things at the same time. An international team, including researchers from several leading American universities, together with […]