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Universal quantum computation with electronic qubits in decoherence-free subspace
- Source :
- Quantum Information and Computation 8 (2008) 96-105
- Publication Year :
- 2007
-
Abstract
- We investigate how to carry out universal quantum computation deterministically with free electrons in decoherence-free subspace by using polarizing beam splitters, charge detectors, and single-spin rotations. Quantum information in our case is encoded in spin degrees of freedom of the electron-pairs which construct a decoherence-free subspace. We design building blocks for two noncommutable single-logic-qubit gates and a logic controlled phase gate, based on which a universal and scalable quantum information processing robust to dephasing is available in a deterministic way.<br />Comment: 14 pages, 3 figures
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Quantum Information and Computation 8 (2008) 96-105
- Publication Type :
- Report
- Accession number :
- edsarx.0710.3996
- Document Type :
- Working Paper