Selective pulse implementation of two-qubit gates for spin-32-based fullerene quantum-information processing

2003/11/30 by M. Feng, Mang Feng, Jason Twamley +1 · 1 citation
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum and electron transport phenomena #quant-ph

paper · pdf · doi:10.1103/physreva.70.032318

published as Physical Review A 70, 032318 (2004) · RevTex file with three Figures and 1 table, New stuff is complemented

arxiv created 2004/07/05 · openalex publication_date 2004/09/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We propose two potentially practical schemes to carry out two-qubit quantum gates on endohedral fullerenes N@C₆₀ or P@C₆₀. The qubits are stored in electronic spin degrees of freedom of the doped atom N or P. By means of the magnetic dipolar coupling between two neighboring fullerenes, the two-qubit controlled-NOT gate and the two-qubit conditional phase gate are performed by selective microwave pulses assisted by the refocusing technique. We will discuss the necessary additional steps for the universality of our proposal. We will also show that our proposal is useful for both quantum gating and the readout of quantum information from the spin-based qubit state.

Citations

• The Physical Implementation of Quantum Computation

Cited by

• Bell-state preparation for fullerene-based electron spins in distant nanotubes

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