The German Federal Ministry of Education and Research (BMBF) is investment the collaboration with €15.6m through the ‘Enabling Start-up’ measure. Quantum processing units The joint project – named Deutsche Brilliance – intends to take advantage of the unique cloth residences of diamond and convey novel technology for growing and controlling diamond quantum microprocessors – quantum processing units, or QPUs – through 2025.

The goal of QPUs is to provide quantum blessings for capabilities like aspect computing—a simple technological precondition for the complex infrastructure of the Internet of Things (IoT), which could facilitate self sustaining mobility and digitised commercial production. Assessing diamond quantum microprocessors One tremendous issue withinside the development of quantum computer systems is the technological realisation of quantum bits (qubits).

Qubits may be advanced via numerous techniques; for example, they may be produced primarily based totally on nuclear spins in solids. In this respect, a brand new technique is the utilisation of diamond as a bunch cloth. Diamond-primarily based totally quantum computer systems provide ability big advantages in regard to realistic applications: they may be built and run extra energy-efficiently, constantly and compactly than quantum processors primarily based totally on superconducting qubits. As properly as this, it isn’t vital to chill them to cryogenic temperatures or evacuate them in complicated systems. In fact, diamond qubits feature at room temperature and regular stress ratios due to the pretty solid diamond crystal lattice.

Diamond qubits Diamond qubits are generated via the quantum entanglement of quasi-unfastened electrons in nitrogen-emptiness centres (“NV centres” ) of the diamond crystal lattice. Nevertheless, current strategies for the fabrication of such NV centres do now no longer allow an upscaling of diamond-primarily based totally qubits to effectively massive assemblies of a couple of qubits withinside the shape of arrays, which might be required for quantum computing. Currently, strategies that permit a described placement of nitrogen atoms withinside the crystal lattice are scarce. This, however, is vital for the coupling of a couple of NV centres to create large arrays.

The production process During its subproposal in the joint project, Fraunhofer IAF is setting up increase approaches for diamond substrates of the most purity and quality. In partnership with Quantum Brilliance, it is additionally growing precision production techniques for the development of scalable arrays of diamond qubits. Researchers of Fraunhofer IAF wish to perform the desired nearby accuracy withinside the placement of nitrogen atoms of much less than one nanometre through using scanning probe microscopy.