Demonstration of unconditional one-way quantum computations for continuous variables

Ryuji Ukai; Noriaki Iwata; Yuji Shimokawa; Seiji C. Armstrong; Alberto Politi; Jun Ichi Yoshikawa; Peter Van Loock; Akira Furusawa

doi:10.1103/PhysRevLett.106.240504

Demonstration of unconditional one-way quantum computations for continuous variables

Ryuji Ukai^*, Noriaki Iwata, Yuji Shimokawa, Seiji C. Armstrong, Alberto Politi, Jun Ichi Yoshikawa, Peter Van Loock, Akira Furusawa

^*Corresponding author for this work

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

126 Citations (Scopus)

Abstract

One-way quantum computation is a very promising candidate to fulfill the capabilities of quantum information processing. Here we demonstrate an important set of unitary operations for continuous variables using a linear cluster state of four entangled optical modes. These operations are performed in a fully measurement-controlled and completely unconditional fashion. We implement three different levels of squeezing operations and a Fourier transformation, all of which are accessible by selecting the correct quadrature measurement angles of the homodyne detections. Though not sufficient, these linear transformations are necessary for universal quantum computation.

Original language	English
Article number	240504
Journal	Physical Review Letters
Volume	106
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.106.240504
Publication status	Published - 17 Jun 2011

Access to Document

10.1103/PhysRevLett.106.240504

Cite this

@article{1a5ecd8d0bf441be9ffb064c731ec7fb,

title = "Demonstration of unconditional one-way quantum computations for continuous variables",

abstract = "One-way quantum computation is a very promising candidate to fulfill the capabilities of quantum information processing. Here we demonstrate an important set of unitary operations for continuous variables using a linear cluster state of four entangled optical modes. These operations are performed in a fully measurement-controlled and completely unconditional fashion. We implement three different levels of squeezing operations and a Fourier transformation, all of which are accessible by selecting the correct quadrature measurement angles of the homodyne detections. Though not sufficient, these linear transformations are necessary for universal quantum computation.",

author = "Ryuji Ukai and Noriaki Iwata and Yuji Shimokawa and Armstrong, {Seiji C.} and Alberto Politi and Yoshikawa, {Jun Ichi} and {Van Loock}, Peter and Akira Furusawa",

year = "2011",

month = jun,

day = "17",

doi = "10.1103/PhysRevLett.106.240504",

language = "English",

volume = "106",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "24",

}

TY - JOUR

T1 - Demonstration of unconditional one-way quantum computations for continuous variables

AU - Ukai, Ryuji

AU - Iwata, Noriaki

AU - Shimokawa, Yuji

AU - Armstrong, Seiji C.

AU - Politi, Alberto

AU - Yoshikawa, Jun Ichi

AU - Van Loock, Peter

AU - Furusawa, Akira

PY - 2011/6/17

Y1 - 2011/6/17

N2 - One-way quantum computation is a very promising candidate to fulfill the capabilities of quantum information processing. Here we demonstrate an important set of unitary operations for continuous variables using a linear cluster state of four entangled optical modes. These operations are performed in a fully measurement-controlled and completely unconditional fashion. We implement three different levels of squeezing operations and a Fourier transformation, all of which are accessible by selecting the correct quadrature measurement angles of the homodyne detections. Though not sufficient, these linear transformations are necessary for universal quantum computation.

AB - One-way quantum computation is a very promising candidate to fulfill the capabilities of quantum information processing. Here we demonstrate an important set of unitary operations for continuous variables using a linear cluster state of four entangled optical modes. These operations are performed in a fully measurement-controlled and completely unconditional fashion. We implement three different levels of squeezing operations and a Fourier transformation, all of which are accessible by selecting the correct quadrature measurement angles of the homodyne detections. Though not sufficient, these linear transformations are necessary for universal quantum computation.

UR - http://www.scopus.com/inward/record.url?scp=79960669632&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.106.240504

DO - 10.1103/PhysRevLett.106.240504

M3 - Article

SN - 0031-9007

VL - 106

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 240504

ER -

Demonstration of unconditional one-way quantum computations for continuous variables

Abstract

Access to Document

Other files and links

Fingerprint

Cite this