At the heart of a quantum computer is the qubit, designed as the analog of the classical bit, the deterministic component at the heart of all electronics out there. Bits are physically constructed using a transistor. Transistors are tiny, at around 15 nanometers (nm) where 1 nm = 10-12m; qubits, on the other hand, are big – a few meters tall. In this chapter, we look at the basic architecture of the qubit as designed by the pioneering IT companies in the field.
You will also learn that although qubits are mostly ...
