IBM has once again made progress in quantumcomputers. The onderzoekstak Big Blue says are important steps towards a workable quantum computer to have set the necessary qubits would can be scaled.
Three ‘breakthroughs’ in the field of quantumcomputers have to calculate with qubits closer. Scientists from IBM Research say three records to have established on the area of the life of qubits, the elementary building blocks of a quantum computer. They knew the errors in counting with qubits to reduce and extend their lifespan. In addition, a method was developed for qubits to build with the help of supergekoelde 3d-building blocks and were qubits via traditional siliciumproductietechnieken made.
That makes it possible for the production of the 3d-qubits in the future to scale and quantumcomputers to build with thousands of qubits. The 3d-qubits consist of a copper cavity in which a phase qubit is suspended; the resonantieruimte prevents decay of the quantum state of the qubits, over a record time of around 100 milliseconds. With such lifetimes would be error correction can be applied. The system would lend themselves to the use of hundreds or thousands of qubits at a time.
A second method for qubits was also developed; a circuit in silicon, it was made with three qubits. The data in the qubits in these circuits remained about 10 µs intact; almost enough for error correction. The somewhat arbitrary border for quantum-error correction, is around 100 microseconds. The correction is necessary to the quantum state of qubits, and thus the accuracy of the quantum information, to guarantee.
Useful quantumcomputers promise for many years a breakthrough in the field of encryption and other complex calculations. The lifetime of quantum information in qubits is, however, still too limited to quantumcomputers in practice to be able to use. Researchers focus on extending the lifetime to as data kept intact during calculations and also the construction of ‘computers’ with more than a handful of qubits is in the past difficult evidence.