117Chapter 5 Invisible inputs: the future of private quantum computing
Ritu Sachdeva, Ms. Aastha Budhiraja, Parul Gandhi, Priyanka Sharma · 2025
Quantum computing is a computer model that uses odd and weird principles of quantum mechanics in information processing. Instead of the basis for the fundamental information of the bit used by a classical computer – that being a zero or a one – it utilizes a quantum bit or a qubit. Qubits can be in more than one state at the same time because of superposition and can be entangled with each other, meaning that a state of dependency is created, where the state of one qubit can depend on the state of another, regardless of distance. Operations are performed using quantum gates that manipulate qubits’ states. With the development of quantum computing, the systems it produces are potent, making it possible for the solution to very complex problems or sensitive data. For this, privacy is necessary in quantum computing systems [ 1 ]. The secure quantum computation protocol i.e. Blind quantum computing plays a role in such quantum systems. This protocol enables a client with limited quantum capabilities to delegate a quantum computation task to a powerful server while keeping their input, output, and algorithm private.