Volume 89, Number 2, January 2010
|Number of page(s)||5|
|Published online||03 February 2010|
A single-interaction step implementation of a quantum search in coupled micro-cavities
Centre for Quantum Technologies, National University of Singapore - 2 Science Drive 3, Singapore 117542
2 Science Department, Technical University of Crete - Chania, Crete, Greece, 73100, EU
Corresponding author: email@example.com
Accepted: 5 January 2010
We present a method for realizing efficiently Grover's search algorithm in an array of coupled cavities doped with three-level atoms. We show that by encoding information in the lowest two ground states of the dopants and through the application of appropriately tuned global laser fields, the reflection operator needed for the quantum search algorithm can be realized in a single physical operation. Thus, the time steps in which Grover's search can be implemented become equal to the mathematical steps , where N is the size of the register. We study the robustness of the implementation against errors due to photon loss and fluctuations in the cavity frequencies and atom-photon coupling constants.
PACS: 03.67.Lx – Quantum computation architectures and implementations / 42.50.Pq – Cavity quantum electrodynamics; micromasers / 03.67.-a – Quantum information
© EPLA, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.