Qubus computation

W. J. Munro; Kae Nemoto; T. P. Spiller; P. van Loock; Samuel L. Braunstein; G. J. Milburn

doi:10.1117/12.675938

29 August 2006 Qubus computation

W. J. Munro, Kae Nemoto, T. P. Spiller, P. van Loock, Samuel L. Braunstein, G. J. Milburn

Proceedings Volume 6305, Quantum Communications and Quantum Imaging IV; 63050D (2006) https://doi.org/10.1117/12.675938
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Processing information quantum mechanically is known to enable new communication and computational scenarios that cannot be accessed with conventional information technology (IT). We present here a new approach to scalable quantum computing---a "qubus computer"---which realizes qubit measurement and quantum gates through interacting qubits with a quantum communication bus mode. The qubits could be "static" matter qubits or "flying" optical qubits, but the scheme we focus on here is particularly suited to matter qubits. Universal two-qubit quantum gates may be effected by schemes which involve measurement of the bus mode, or by schemes where the bus disentangles automatically and no measurement is needed. This approach enables a parity gate between qubits, mediated by a bus, enabling near-deterministic Bell state measurement and entangling gates. Our approach is therefore the basis for very efficient, scalable QIP, and provides a natural method for distributing such processing, combining it with quantum communication.

Citation Download Citation

W. J. Munro, Kae Nemoto, T. P. Spiller, P. van Loock, Samuel L. Braunstein, and G. J. Milburn "Qubus computation", Proc. SPIE 6305, Quantum Communications and Quantum Imaging IV, 63050D (29 August 2006); https://doi.org/10.1117/12.675938

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available