Teletransporte de informação quântica entre campos de cores distintas

Igor Konieczniak

Teletransporte de informação quântica entre campos de cores distintas

Translated title of the contribution: Quantum information teleport with distinct color fields

Research output: Thesis › Master's Thesis

Abstract

In 1993, Bennett et al. [1] postulated teleportation of quantum states by means of two communication channels, one classical and the other formed by a pair of entangled systems. In quantum optics, several experimental realizations of this teleportation process have been reported [2, 3, 4], both in the continuous and discrete variables domains. Recently, entanglement in the continuous variables domain between brigth beams of light with different colors were measured [5, 6, 7]. Using beams with these characteristics as a quantum comunication channel, we present a proposal for the first quantum information teleportation with exchange of information in the continuous variables domain between different color fields. Experimental results towards the proposalŽs accomplishment
have been achieved. The electro-optic modulators, needed in the preparation and reconstruction of quantum states of light,were characterized. Four optical cavities were built, as required by the protocol for multicolored light beams. An optical parametric oscillator (OPO) was built to generate the correlated beams. However, it showed unsatisfactory results, attributed to a defect in the nonlinear crystal. Therefore, an OPO with new crystal and new mirrors was designed and is under construction. Finally, a theoretical treatment appropriate to the particularities of the experimental proposal is presented.

Translated title of the contribution	Quantum information teleport with distinct color fields
Original language	Portuguese
Qualification	Master of Science
Awarding Institution	Universidade de São Paulo
Supervisors/Advisors	Nussenzveig, Paulo, Supervisor, External person
Thesis sponsors	CNPQ CONSELHO NACIONAL DE CIENTIFICO E TECNOLOGICO
Award date	21 May 2013
Publication status	Published - 21 May 2013
Externally published	Yes

Cite this

@mastersthesis{b3c9a6d344bf4acd980ed1d20e30d154,

title = "Teletransporte de informa{\c c}{\~a}o qu{\^a}ntica entre campos de cores distintas",

abstract = "In 1993, Bennett et al. [1] postulated teleportation of quantum states by means of two communication channels, one classical and the other formed by a pair of entangled systems. In quantum optics, several experimental realizations of this teleportation process have been reported [2, 3, 4], both in the continuous and discrete variables domains. Recently, entanglement in the continuous variables domain between brigth beams of light with different colors were measured [5, 6, 7]. Using beams with these characteristics as a quantum comunication channel, we present a proposal for the first quantum information teleportation with exchange of information in the continuous variables domain between different color fields. Experimental results towards the proposal{\v Z}s accomplishmenthave been achieved. The electro-optic modulators, needed in the preparation and reconstruction of quantum states of light,were characterized. Four optical cavities were built, as required by the protocol for multicolored light beams. An optical parametric oscillator (OPO) was built to generate the correlated beams. However, it showed unsatisfactory results, attributed to a defect in the nonlinear crystal. Therefore, an OPO with new crystal and new mirrors was designed and is under construction. Finally, a theoretical treatment appropriate to the particularities of the experimental proposal is presented.",

author = "Igor Konieczniak",

year = "2013",

month = may,

day = "21",

language = "Portuguese",

school = "Universidade de S{\~a}o Paulo",

}

TY - GEN

T1 - Teletransporte de informação quântica entre campos de cores distintas

AU - Konieczniak, Igor

PY - 2013/5/21

Y1 - 2013/5/21

N2 - In 1993, Bennett et al. [1] postulated teleportation of quantum states by means of two communication channels, one classical and the other formed by a pair of entangled systems. In quantum optics, several experimental realizations of this teleportation process have been reported [2, 3, 4], both in the continuous and discrete variables domains. Recently, entanglement in the continuous variables domain between brigth beams of light with different colors were measured [5, 6, 7]. Using beams with these characteristics as a quantum comunication channel, we present a proposal for the first quantum information teleportation with exchange of information in the continuous variables domain between different color fields. Experimental results towards the proposalŽs accomplishmenthave been achieved. The electro-optic modulators, needed in the preparation and reconstruction of quantum states of light,were characterized. Four optical cavities were built, as required by the protocol for multicolored light beams. An optical parametric oscillator (OPO) was built to generate the correlated beams. However, it showed unsatisfactory results, attributed to a defect in the nonlinear crystal. Therefore, an OPO with new crystal and new mirrors was designed and is under construction. Finally, a theoretical treatment appropriate to the particularities of the experimental proposal is presented.

AB - In 1993, Bennett et al. [1] postulated teleportation of quantum states by means of two communication channels, one classical and the other formed by a pair of entangled systems. In quantum optics, several experimental realizations of this teleportation process have been reported [2, 3, 4], both in the continuous and discrete variables domains. Recently, entanglement in the continuous variables domain between brigth beams of light with different colors were measured [5, 6, 7]. Using beams with these characteristics as a quantum comunication channel, we present a proposal for the first quantum information teleportation with exchange of information in the continuous variables domain between different color fields. Experimental results towards the proposalŽs accomplishmenthave been achieved. The electro-optic modulators, needed in the preparation and reconstruction of quantum states of light,were characterized. Four optical cavities were built, as required by the protocol for multicolored light beams. An optical parametric oscillator (OPO) was built to generate the correlated beams. However, it showed unsatisfactory results, attributed to a defect in the nonlinear crystal. Therefore, an OPO with new crystal and new mirrors was designed and is under construction. Finally, a theoretical treatment appropriate to the particularities of the experimental proposal is presented.

M3 - Master's Thesis

ER -