Quantum computation based on electron spin qubits without spin-spin interaction

Yin Zhong Wu, Wei Min Zhang, Chopin Soo

Research output: Chapter in Book/Report/Conference proceedingChapter


Using electron spin states in a unit cell of three semiconductor quantum dots as qubit states, a scalable quantum computation scheme is advocated without invoking qubit-qubit interactions. Single electron tunneling technology and coherent quantum-dot cellular automata architecture are used to generate an ancillary charge entangled state which is then converted into spin entangled state. Without using charge measurement and ancillary qubits, we demonstrate universal quantum computation based on free electron spin and coherent quantum-dot cellular automata.

Original languageEnglish
Title of host publicationQuantum Information Science
Subtitle of host publicationProceedings of the 1st Asia-Pacific Conference: National Cheng Kung University, Taiwan Dec 10-13, 2004
PublisherWorld Scientific Publishing Co.
Number of pages8
ISBN (Electronic)9789812701633
ISBN (Print)9812564608, 9789812564603
Publication statusPublished - 2005 Jan 1

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology
  • General Engineering
  • General Physics and Astronomy


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