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A qubit, also known as a quantum bit or quantum bit, is a fundamental quantum informational unit that is physically implemented with a two-state device in quantum computing. One of the simplest quantum systems that exhibits the peculiarities of quantum mechanics is a qubit, which is a two-state (or two-level) quantum mechanical system.
Examples are the electron’s spin, where the two levels can be interpreted as spin up and spin down, or a single photon’s polarisation, where the two states can be interpreted as vertical and horizontal polarisation. A bit would need to be in one of two states in a classical system.
The essential property of quantum physics and quantum computing is that the qubit can exist in a coherent superposition of both states at the same time.
A qubit control system can be measured in two different ways and is typically assumed to contain the values “0” and “1,” similar to a bit or binary digit. But unlike bits, which can only have a state of 0 or 1, qubits can, in accordance with quantum mechanics, have a general state that is a coherent superposition of both.
Furthermore, a measurement of a qubit would irreparably disrupt the superposition state while a measurement of a conventional bit would not change its state. One qubit can completely encode a single bit.
The Global Qubit Control System market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Zurich Instruments introduces the SHFQC, its first qubit controller capable of quick feedback, reading, and control of up to 6 qubits. The SHFQC has a wide and clear instantaneous bandwidth of 1 GHz and supports control and readout frequencies up to 8.5 GHz without the requirement for mixer calibration.
Each of the six signal generator control channels and the one readout channel for the quantum analyzer on the SHFQC can be independently controlled and triggered. A quick feedback loop and flexible, software-controlled reconfiguration of the qubit control system are made possible by internal data and trigger distribution.
The control channels’ effective pulse-level sequencing in their arbitrary waveform generators can be set to produce complex gate sequences (AWGs). The readout channel does real-time, time-staggered or parallel analysis on up to 16 qubits, 8 qutrits, or 5 ququads.
