Practical effects in the preparation of cluster states using weak non-linearities

Peter P. Rohde, William J. Munro, Timothy C. Ralph, Peter Van Loock, Kae Nemoto

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We discuss experimental effects in the implementation of a recent scheme for performing bus mediated entangling operations between qubits. Here a bus mode, a strong coherent state, successively undergoes weak Kerr-type non-linear interactions with qubits. A quadrature measurement on the bus then projects the qubits into an entangled state. This approach has the benefit that entangling gates are non-destructive, may be performed non-locally, and there is no need for efficient single photon detection. In this paper we examine practical issues affecting its experimental implementation. In particular, we analyze the effects of post-selection errors, qubit loss, bus loss, mismatched coupling rates and mode-mismatch. We derive error models for these effects and relate them to realistic fault-tolerant thresholds, providing insight into realistic experimental requirements.

Original languageEnglish
Pages (from-to)53-67
Number of pages15
JournalQuantum Information and Computation
Volume8
Issue number1-2
Publication statusPublished - 1 Jan 2008

Fingerprint Dive into the research topics of 'Practical effects in the preparation of cluster states using weak non-linearities'. Together they form a unique fingerprint.

  • Cite this

    Rohde, P. P., Munro, W. J., Ralph, T. C., Van Loock, P., & Nemoto, K. (2008). Practical effects in the preparation of cluster states using weak non-linearities. Quantum Information and Computation, 8(1-2), 53-67.