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Indistinguishable Photon Sources for...

Patel, Monika.

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Indistinguishable Photon Sources for Practical Quantum Communication.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Indistinguishable Photon Sources for Practical Quantum Communication./
作者:	Patel, Monika.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2012,
面頁冊數:	140 p.
附註:	Source: Dissertations Abstracts International, Volume: 73-09, Section: B.
Contained By:	Dissertations Abstracts International73-09B.
標題:	Quantum physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3499631
ISBN:	9781267242600

Indistinguishable Photon Sources for Practical Quantum Communication.
Patel, Monika.

Indistinguishable Photon Sources for Practical Quantum Communication. - Ann Arbor : ProQuest Dissertations & Theses, 2012 - 140 p.

Source: Dissertations Abstracts International, Volume: 73-09, Section: B.

Thesis (Ph.D.)--Northwestern University, 2012.

This item must not be added to any third party search indexes.

The need for reliable, fiber-based sources of entangled and paired photons has intensified in recent years because of potential uses in optical quantum communication and computing. In particular, indistinguishable photon sources are an inherent part of several quantum communication protocols and are needed to establish the viability of quantum communication networks. This thesis is centered around the development of such sources at telecommunication-band wavelengths. In this thesis, we describe experiments on entangled photon generation and the creation of quantum logic gates in the C-band, and on photon indistinguishability in the O-band. These experiments utilize the four-wave mixing process in fiber which occurs as a result of the Kerr nonlinearity, to create paired photons. To begin, we report the development of a source of 1550-nm polarization entangled photons in fiber. We then interface this source with a quantum Controlled-NOT gate, which is a universal quantum logic gate. We set experimental bounds on the process fidelity of the Controlled-NOT gate. Next, we report a demonstration of quantum interference between 1310-nm photons produced in independent sources. We demonstrate high quantum interference visibility, a signature of quantum indistinguishability, while using distinguishable pump photons. Together, these efforts constitute preliminary steps toward establishing the viability of fiber-based quantum communication, which will allow us to utilize existing infrastructure for implementing quantum communication protocols.

ISBN: 9781267242600Subjects--Topical Terms:

726746
Quantum physics.

Indistinguishable Photon Sources for Practical Quantum Communication.
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520 $a The need for reliable, fiber-based sources of entangled and paired photons has intensified in recent years because of potential uses in optical quantum communication and computing. In particular, indistinguishable photon sources are an inherent part of several quantum communication protocols and are needed to establish the viability of quantum communication networks. This thesis is centered around the development of such sources at telecommunication-band wavelengths. In this thesis, we describe experiments on entangled photon generation and the creation of quantum logic gates in the C-band, and on photon indistinguishability in the O-band. These experiments utilize the four-wave mixing process in fiber which occurs as a result of the Kerr nonlinearity, to create paired photons. To begin, we report the development of a source of 1550-nm polarization entangled photons in fiber. We then interface this source with a quantum Controlled-NOT gate, which is a universal quantum logic gate. We set experimental bounds on the process fidelity of the Controlled-NOT gate. Next, we report a demonstration of quantum interference between 1310-nm photons produced in independent sources. We demonstrate high quantum interference visibility, a signature of quantum indistinguishability, while using distinguishable pump photons. Together, these efforts constitute preliminary steps toward establishing the viability of fiber-based quantum communication, which will allow us to utilize existing infrastructure for implementing quantum communication protocols.
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