Blind Quantum Computation by Circuit Based Quantum Computer
This paper gives a protocol for the blindness by using a quantum one-time pad encryption and T-like gate, and for verifying computation by using trap qubits.
Abstract
When universal quantum computer is used by public, it is assumed that it will be used as a quantum cloud server that exists in a few bases because the quantum computer is expensive. When it will be realized, a quantum universal computer is thought to work as a quantum cloud server. In the cloud server the privacy is a crucial issue. That is, we need a blind quantum computation (BQC) protocol so that each user can use the server without showing the details of the calculation. It is also important to be able to verify that the server is performing calculations as instructed by the user, since quantum calculations cannot be verified by classical computation. In this paper, we give a protocol for the blindness by using a quantum one-time pad encryption and T-like gate, and for verifying computation by using trap qubits.