Blind quantum computation

20 08/2013

Tuesday, 20 Aug. 2013, 11:00 - 12:30

Presenter: Prof. Tomoyuki Morimae
Host: P. Walther
Where: Ernst-Mach HS, Boltzmanng. 5, 2nd floor, 1090 Vienna

A first generation scalable quantum computer will be implemented in a "cloud" style, since only limited groups will be able to possess such a high-maintenance complex system. In such a cloud quantum computing, the privacy of a user (client) is the most important issue. Blind quantum computation proposed by Broadbent, Fitzsimons, and Kashefi on 2009 provides a solution. Blind quantum computation protocol enables a client who does not have enough quantum technology to delegate her quantum computation to a server who has a universal quantum computer without leaking any information about client's computation. Their protocol was experimentally demonstrated. In this talk, I will first quickly explain the basics of the blind quantum computing protocol. Next I will explain recent developments of blind quantum computing including our works about the possibility of blind quantum computing with other resource states, making the client as much classical as possible, and the verification (testing the server).