### Abstract

We present a model of quantum teleportation protocol based on one-dimensional quantum dots system. Three quantum dots with three electrons are used to perform teleportation, the unknown qubit is encoded using one electron spin on quantum dot A, the other two dots B and C are coupled to form a mixed space-spin entangled state. By choosing the Hamiltonian for the mixed space-spin entangled system, we can filter the space (spin) entanglement to obtain pure spin (space) entanglement and after a Bell measurement, the unknown qubit is transferred to quantum dot B. Selecting an appropriate Hamiltonian for the quantum gate allows the spin-based information to be transformed into a charge-based information. The possibility of generalizing this model to N-electrons is discussed.

Original language | English |
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Pages (from-to) | 338-342 |

Number of pages | 5 |

Journal | Chemical Physics Letters |

Volume | 421 |

Issue number | 4-6 |

DOIs | |

Publication status | Published - 15 Apr 2006 |

Externally published | Yes |

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### ASJC Scopus subject areas

- Physical and Theoretical Chemistry
- Spectroscopy
- Atomic and Molecular Physics, and Optics
- Surfaces and Interfaces
- Condensed Matter Physics

### Cite this

*Chemical Physics Letters*,

*421*(4-6), 338-342. https://doi.org/10.1016/j.cplett.2006.01.093

**Quantum teleportation in one-dimensional quantum dots system.** / Wang, Hefeng; Kais, Sabre.

Research output: Contribution to journal › Article

*Chemical Physics Letters*, vol. 421, no. 4-6, pp. 338-342. https://doi.org/10.1016/j.cplett.2006.01.093

}

TY - JOUR

T1 - Quantum teleportation in one-dimensional quantum dots system

AU - Wang, Hefeng

AU - Kais, Sabre

PY - 2006/4/15

Y1 - 2006/4/15

N2 - We present a model of quantum teleportation protocol based on one-dimensional quantum dots system. Three quantum dots with three electrons are used to perform teleportation, the unknown qubit is encoded using one electron spin on quantum dot A, the other two dots B and C are coupled to form a mixed space-spin entangled state. By choosing the Hamiltonian for the mixed space-spin entangled system, we can filter the space (spin) entanglement to obtain pure spin (space) entanglement and after a Bell measurement, the unknown qubit is transferred to quantum dot B. Selecting an appropriate Hamiltonian for the quantum gate allows the spin-based information to be transformed into a charge-based information. The possibility of generalizing this model to N-electrons is discussed.

AB - We present a model of quantum teleportation protocol based on one-dimensional quantum dots system. Three quantum dots with three electrons are used to perform teleportation, the unknown qubit is encoded using one electron spin on quantum dot A, the other two dots B and C are coupled to form a mixed space-spin entangled state. By choosing the Hamiltonian for the mixed space-spin entangled system, we can filter the space (spin) entanglement to obtain pure spin (space) entanglement and after a Bell measurement, the unknown qubit is transferred to quantum dot B. Selecting an appropriate Hamiltonian for the quantum gate allows the spin-based information to be transformed into a charge-based information. The possibility of generalizing this model to N-electrons is discussed.

UR - http://www.scopus.com/inward/record.url?scp=33645864938&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645864938&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2006.01.093

DO - 10.1016/j.cplett.2006.01.093

M3 - Article

AN - SCOPUS:33645864938

VL - 421

SP - 338

EP - 342

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 4-6

ER -