Generating entangled states of two ququarts using linear optical elements

So Young Baek; Yoon Ho Kim

doi:10.1117/12.698767

Generating entangled states of two ququarts using linear optical elements

So Young Baek, Yoon Ho Kim

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Recently, quantum systems with D-dimensional bases states (D > 2) or quDits have attracted much attention in the context of fundamental tests of quantum theory and potential applications in quantum information. In this paper, we discuss several schemes for generating entangled states of two ququarts (four-dimensional quantum systems). The ququart in our scheme is based on frequency-nondegenerate biphoton states of spontaneous parametric down-conversion and we show how the entangled states between two ququarts can be generated with simple linear optical elements, such as an ordinary 50/50 beamsplitter, a polarizing beamsplitter, or a dichroic beamsplitter. We also show that our scheme is capable of generating postselection-free two-ququart entangled states efficiently.

Original language	English
Title of host publication	Quantum Communications and Quantum Imaging IV
DOIs	https://doi.org/10.1117/12.698767
Publication status	Published - 2006
Externally published	Yes
Event	Quantum Communications and Quantum Imaging IV - San Diego, CA, United States Duration: 2006 Aug 13 → 2006 Aug 14

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6305
ISSN (Print)	0277-786X

Other

Other	Quantum Communications and Quantum Imaging IV
Country/Territory	United States
City	San Diego, CA
Period	06/8/13 → 06/8/14

Keywords

High dimensional quantum state
Quantum entanglement
Ququart
Spontaneous parametric down-conversion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.698767

Cite this

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title = "Generating entangled states of two ququarts using linear optical elements",

abstract = "Recently, quantum systems with D-dimensional bases states (D > 2) or quDits have attracted much attention in the context of fundamental tests of quantum theory and potential applications in quantum information. In this paper, we discuss several schemes for generating entangled states of two ququarts (four-dimensional quantum systems). The ququart in our scheme is based on frequency-nondegenerate biphoton states of spontaneous parametric down-conversion and we show how the entangled states between two ququarts can be generated with simple linear optical elements, such as an ordinary 50/50 beamsplitter, a polarizing beamsplitter, or a dichroic beamsplitter. We also show that our scheme is capable of generating postselection-free two-ququart entangled states efficiently.",

keywords = "High dimensional quantum state, Quantum entanglement, Ququart, Spontaneous parametric down-conversion",

author = "Baek, {So Young} and Kim, {Yoon Ho}",

year = "2006",

doi = "10.1117/12.698767",

language = "English",

isbn = "0819463841",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Quantum Communications and Quantum Imaging IV",

note = "Quantum Communications and Quantum Imaging IV ; Conference date: 13-08-2006 Through 14-08-2006",

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T1 - Generating entangled states of two ququarts using linear optical elements

AU - Baek, So Young

AU - Kim, Yoon Ho

PY - 2006

Y1 - 2006

N2 - Recently, quantum systems with D-dimensional bases states (D > 2) or quDits have attracted much attention in the context of fundamental tests of quantum theory and potential applications in quantum information. In this paper, we discuss several schemes for generating entangled states of two ququarts (four-dimensional quantum systems). The ququart in our scheme is based on frequency-nondegenerate biphoton states of spontaneous parametric down-conversion and we show how the entangled states between two ququarts can be generated with simple linear optical elements, such as an ordinary 50/50 beamsplitter, a polarizing beamsplitter, or a dichroic beamsplitter. We also show that our scheme is capable of generating postselection-free two-ququart entangled states efficiently.

AB - Recently, quantum systems with D-dimensional bases states (D > 2) or quDits have attracted much attention in the context of fundamental tests of quantum theory and potential applications in quantum information. In this paper, we discuss several schemes for generating entangled states of two ququarts (four-dimensional quantum systems). The ququart in our scheme is based on frequency-nondegenerate biphoton states of spontaneous parametric down-conversion and we show how the entangled states between two ququarts can be generated with simple linear optical elements, such as an ordinary 50/50 beamsplitter, a polarizing beamsplitter, or a dichroic beamsplitter. We also show that our scheme is capable of generating postselection-free two-ququart entangled states efficiently.

KW - High dimensional quantum state

KW - Quantum entanglement

KW - Ququart

KW - Spontaneous parametric down-conversion

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DO - 10.1117/12.698767

M3 - Conference contribution

AN - SCOPUS:33750537470

SN - 0819463841

SN - 9780819463845

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Quantum Communications and Quantum Imaging IV

T2 - Quantum Communications and Quantum Imaging IV

Y2 - 13 August 2006 through 14 August 2006

ER -

Generating entangled states of two ququarts using linear optical elements

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