Work

Arbitrary-speed quantum gates within large ion crystals through minimum control of laser beams

Year: 2006

Type: article

Abstract: We propose a scheme to implement arbitrary-speed quantum entangling gates on two trapped ions immersed in a large linear crystal of ions, with minimal control of laser beams. For gate speeds slower than the oscillation frequencies in the trap, a single appropriately detuned laser pulse is sufficient for high-fidelity gates. For gate speeds comparable to or faster than the local ion oscillation frequency, we discover a five-pulse protocol that exploits only the local phonon modes. This points to a method for efficiently scaling the ion trap quantum computer without shuttling ions.

Source: Europhysics Letters (EPL)

DOI: 10.1209/epl/i2005-10424-4

Authors: Shi-Liang Zhu, C Monroe, L.-M Duan

Institution: University of Michigan

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Agricultural Research Development Agency, Program for New Century Excellent Talents in University, Army Research Office

Award: QnTm: Inherently Robust Quantum Computation and Communication