Work

Scalable quantum computation via local control of only two qubits

Year: 2010

Type: article

Abstract: We apply quantum control techniques to a long spin chain by acting only on two qubits at one of its ends, thereby implementing universal quantum computation by a combination of quantum gates on these qubits and indirect swap operations across the chain. It is shown that the control sequences can be computed and implemented efficiently. We discuss the application of these ideas to physical systems such as superconducting qubits in which full control of long chains is challenging.

Source: Physical Review A

DOI: 10.1103/physreva.81.040303

Authors: Daniel Burgarth, Koji Maruyama, Michael Murphy, Simone Montangero, Tommaso Calarco, Franco Nori, Martin B. Plenio

Institutions: RIKEN, Imperial College London, Universität Ulm, European Centre for Theoretical Studies in Nuclear Physics and Related Areas, University of Michigan

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Deutsche Forschungsgemeinschaft, Engineering and Physical Sciences Research Council, RIKEN, Army Research Office

Awards: G4788835274, Thermalisation and Controllability of Quantum Systems, Quantum -QuBIC: "Quantum Computing with Superconducting Qubits", G8576881962, G994386537

OpenAlex ID: W2036638474

FWCI: 9.156

Cites: 41

Cited by: 103

Related to: 10