Quantum computing cheat sheet for circuit designers
Programming quantum computers requires composing a circuit with a sequence of commands or gates. On World Quantum Day today, Dr. Stefan Seegerer has published a cheat sheet to help circuit designers.
Seegerer is currently Quantum Education Manager at quantum chip maker IQM in Finland. In his role, he helps people learn more about quantum computing and integrate it into their own solutions.
Writing a program for a quantum computer is similar to writing a program for a conventional computer. However today’s computers use very high levels of abstraction to express the algorithms in programs rather than dealing with all the bits and bytes and define operations on individual bits. In quantum computing, the qubits are directly manipulated to create the computation.
Operations performed on a qubit are also called gates. Depending on the context, different notations are used including matrices and vectors, kets, or circuit diagrams. Sometimes it is hard to remember all these different gates.
This is where a cheat sheet comes in handy. Cheat sheets are often used in programming as a quick reference. But they also help when designing quantum algorithms independent of the programming language used. This cheat sheet not only contains basics about qubits but also various gates and some building blocks that might be helpful in developing quantum algorithms.
IQM has over 160 employees with offices in Paris, Bilbao, Munich and Espoo and is currently building Finland’s first commercial 54-qubit quantum computer with VTT, and an IQM-led consortium (Q-Exa) is building Germany’s quantum computer, which will be integrated into an HPC supercomputer to create an accelerator for future scientific research.
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