Published April 14, 2011
| Version v1
Journal article
Robust √(swap) gate on nitrogen-vacancy centres via quantum Zeno dynamics
- 1. Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002 (China)
- 2. Center for the Condensed-Matter Science and Technology, Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang 150001 (China)
- 3. BK21 Program Physics and Department of Physics, College of Natural Science, Chungbuk National University, Cheonju, Chungbuk 361-763 (Korea, Republic of)
Description
A robust √(swap) gate is directly put forward by manipulating two diamond nitrogen-vacancy (NV) centres coupled to a photonic crystal nanocavity within quantum Zeno subspaces. This quantum gate is immune to both the loss of cavity and spontaneous emission of the NV centre, since no cavity photon or excited level of the NV centre is populated during the whole operation. The strictly numerical simulation shows that the average fidelity of the √(swap) gate is high corresponding to the current experimental parameters.
Availability note (English)
Available from http://dx.doi.org/10.1088/0953-4075/44/7/075505Additional details
Identifiers
- DOI
- 10.1088/0953-4075/44/7/075505;
- PII
- S0953-4075(11)77901-9;
Publishing Information
- Journal Title
- Journal of Physics. B, Atomic, Molecular and Optical Physics
- Journal Volume
- 44
- Journal Issue
- 7
- Journal Page Range
- [5 p.]
- ISSN
- 0953-4075
- CODEN
- JPAPEH
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43013084
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CAVITIES; COMPUTERIZED SIMULATION; CRYSTALS; DIAMONDS; EMISSION; EXCITED STATES; LOSSES; NITROGEN; PHOTONS; VACANCIES
- Descriptors DEC
- BOSONS; CARBON; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; ELEMENTS; ENERGY LEVELS; MASSLESS PARTICLES; MINERALS; NONMETALS; POINT DEFECTS; SIMULATION