The BLACKSTONE Virtual Quantum Machine (VQM) service by Black Brane Systems Inc is a cloud-based, virtualized, 128-qubit universal quantum computer. It acts as a plug-and-play alternative target machine for the Microsoft Quantum Developer Kit and Q# programs. Underlying Blackstone is a proprietary breakthrough in data representation that allows an unprecedented level of scalability for quantum calculations on classical computers.
BLACKSTONE is available through the Azure marketplace and includes integration and extension libraries for: Microsoft’s Quantum Development Kit (QDK); Azure services; and the .NET Core runtime. The QDK integration library includes an API-compatible drop-in replacement for Quantum Simulator target machines, enabling Q# developers to build and run quantum programs on BLACKSTONE without modification. The system executes up to data-flow complexity of 128 qubits in constant-factor time over the expected performance of a physical 128-qubit quantum chip, versus the exponential-factor time of full-state quantum simulators.