Preparation and tomographic reconstruction of an arbitrary single-photon path qubit

So Young Baek; Yoon Ho Kim

doi:10.1016/j.physleta.2011.08.064

Preparation and tomographic reconstruction of an arbitrary single-photon path qubit

So Young Baek, Yoon Ho Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

We report methods for preparation and tomographic reconstruction of an arbitrary single-photon path qubit. The arbitrary single-photon path qubit is prepared losslessly by passing the heralded single-photon state from spontaneous parametric down-conversion through variable beam splitter. Quantum state tomography of the single-photon path qubit is implemented by introducing path-projection measurements based on the first-order single-photon quantum interference. Using the state preparation and path-projection measurements methods for the single-photon path qubit, we demonstrate preparation and complete tomographic reconstruction of the single-photon path qubit with arbitrary purity.

Original language	English
Pages (from-to)	3834-3839
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	375
Issue number	44
DOIs	https://doi.org/10.1016/j.physleta.2011.08.064
Publication status	Published - 2011 Oct 24
Externally published	Yes

Keywords

Quantum communication
Quantum information
Quantum state engineering

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1016/j.physleta.2011.08.064

Cite this

@article{ba840985131e4d3bbf6d69dd9feab195,

title = "Preparation and tomographic reconstruction of an arbitrary single-photon path qubit",

abstract = "We report methods for preparation and tomographic reconstruction of an arbitrary single-photon path qubit. The arbitrary single-photon path qubit is prepared losslessly by passing the heralded single-photon state from spontaneous parametric down-conversion through variable beam splitter. Quantum state tomography of the single-photon path qubit is implemented by introducing path-projection measurements based on the first-order single-photon quantum interference. Using the state preparation and path-projection measurements methods for the single-photon path qubit, we demonstrate preparation and complete tomographic reconstruction of the single-photon path qubit with arbitrary purity.",

keywords = "Quantum communication, Quantum information, Quantum state engineering",

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

note = "Funding Information: This work was supported by the National Research Foundation of Korea ( 2009-0070668 and 2009-0084473 ) and the Ministry of Knowledge and Economy of Korea through the Ultrafast Quantum Beam Facility Program.",

year = "2011",

month = oct,

day = "24",

doi = "10.1016/j.physleta.2011.08.064",

language = "English",

volume = "375",

pages = "3834--3839",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

issn = "0375-9601",

publisher = "Elsevier",

number = "44",

}

TY - JOUR

T1 - Preparation and tomographic reconstruction of an arbitrary single-photon path qubit

AU - Baek, So Young

AU - Kim, Yoon Ho

N1 - Funding Information: This work was supported by the National Research Foundation of Korea ( 2009-0070668 and 2009-0084473 ) and the Ministry of Knowledge and Economy of Korea through the Ultrafast Quantum Beam Facility Program.

PY - 2011/10/24

Y1 - 2011/10/24

N2 - We report methods for preparation and tomographic reconstruction of an arbitrary single-photon path qubit. The arbitrary single-photon path qubit is prepared losslessly by passing the heralded single-photon state from spontaneous parametric down-conversion through variable beam splitter. Quantum state tomography of the single-photon path qubit is implemented by introducing path-projection measurements based on the first-order single-photon quantum interference. Using the state preparation and path-projection measurements methods for the single-photon path qubit, we demonstrate preparation and complete tomographic reconstruction of the single-photon path qubit with arbitrary purity.

AB - We report methods for preparation and tomographic reconstruction of an arbitrary single-photon path qubit. The arbitrary single-photon path qubit is prepared losslessly by passing the heralded single-photon state from spontaneous parametric down-conversion through variable beam splitter. Quantum state tomography of the single-photon path qubit is implemented by introducing path-projection measurements based on the first-order single-photon quantum interference. Using the state preparation and path-projection measurements methods for the single-photon path qubit, we demonstrate preparation and complete tomographic reconstruction of the single-photon path qubit with arbitrary purity.

KW - Quantum communication

KW - Quantum information

KW - Quantum state engineering

UR - http://www.scopus.com/inward/record.url?scp=80053576643&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80053576643&partnerID=8YFLogxK

U2 - 10.1016/j.physleta.2011.08.064

DO - 10.1016/j.physleta.2011.08.064

M3 - Article

AN - SCOPUS:80053576643

VL - 375

SP - 3834

EP - 3839

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 44

ER -

Preparation and tomographic reconstruction of an arbitrary single-photon path qubit

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this