Nicolai Friis, Alexey A. Melnikov, Gerhard Kirchmair, Hans J. Briegel
Scientific Reports 5, 18036
Publication year: 2015

Coherent controlization, i.e., coherent conditioning of arbitrary single- or multi-qubit operations on the state of one or more control qubits, is an important ingredient for the flexible implementation of many algorithms in quantum computation. This is of particular significance when certain subroutines are changing over time or when they are frequently modified, such as in decision-making algorithms for learning agents. We propose a scheme to realize coherent controlization for any number of superconducting qubits coupled to a microwave resonator. For two and three qubits, we present an explicit construction that is of high relevance for quantum learning agents. We demonstrate the feasibility of our proposal, taking into account loss, dephasing, and the cavity self-Kerr effect.

Leave a Reply

Your email address will not be published. Required fields are marked *

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. Cookies are used to retrieve and process the following user data using Google Analytics: a location of user’s device, type and version of operating system, type and version of a browser, type of user’s device and screen resolution, the source from which user came from, a language of operating system and browser. The following operations will be performed with cookies and user data: collection, recording, arrangement, accumulation, storage, specification (updating, alteration), retrieval, use, transmission (providing access), blocking, erasure or destruction of data. If you continue to use this website or you click "Accept" then you are consenting to this.