An efficient measurement and test topology for quantum computing

Quantum computing researchers around the world are rapidly scaling from single-qubit proof-of-concept designs to complex multi-qubit designs for operational theory validation. To support researchers in this scaling, an efficient measurement and testing topology is being sought. Sushil Vohra from Tektronix will represent CN Red address this topic in four steps. The basics of quantum computing, the development curve of technology, experiments and the methodologies for efficient experimental research.

In a article on the RF Technology event site will be discussed in more detail about the Arbitrary Waveform Generator (AWG). In the “manipulation” phase, an AWG is used to activate the qubit and move it to a certain state. The AWG can send a pulse shape to the processor in the experimental system and use the waveform to adjust the qubit, ensure correct measurements for that processor, and ultimately bring that qubit to a certain state. The manipulation phase also involves self-calibration of measurements by using the AWG to observe.

In the “read” phase, the AWG pulse can trigger an oscilloscope measurement or a readout in another measurement system, such as an FPGA-based system. The AWG can also perform the waveform adjustments necessary to make a proper measurement. So in some cases, researchers work with the AWG to correct that waveform by making small adjustments to capture the desired measurement. The waveform that is modified is the same file that the AWG uses to generate it.

 On the Tektronix website further explores the challenges surrounding current quantum systems. Each qubit requires a number of precisely timed and sequenced RF pulsed control signals. In general, one does not specifically need an AWG to generate these signals. However, researchers need a scalable way to build deterministic multichannel precision signal generation systems.

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