The IBM Quantum Experience (QX) enables anyone to easily connect to IBM’s quantum processor via the IBM Cloud, to run algorithms and experiments, and explore tutorials and simulations around what might be possible with quantum computing. It is an example of cloud based quantum computing. The QX also hosts an internet forum for users to interact.
IBM’s quantum processor is made up of superconducting transmon qubits, located in a dilution refrigerator at the IBM Research headquarters at the Thomas J. Watson Research Center.
Users interact with the quantum processor through the quantum circuit model of computation, applying quantum gates on the qubits using a GUI called the quantum composer, writing quantum assembly language code or through a Python API.
In May 2016, IBM launched QX, with a five qubit quantum processor and matching simulator connected in a star shaped pattern, which users could only interact with through the quantum composer, with a limited set of two-qubit interactions, and a user guide that assumed background in linear algebra.
In July 2016, IBM launched the QX community forum.
In January 2017, IBM made a number of additions to the QX, including increasing the set of two-qubit interactions available on the five qubit quantum processor, expanding the simulator to custom topologies up to twenty qubits, and allowing users to interact with the device and simulator using quantum assembly language code.