Tomographic reconstruction of time-bin-entangled qudits

Samantha J. Nowierski; Neal N. Oza; Prem Kumar; Gregory S. Kanter

doi:10.1103/PhysRevA.94.042328

Tomographic reconstruction of time-bin-entangled qudits

Samantha J. Nowierski, Neal N. Oza, Prem Kumar, Gregory S. Kanter

Electrical and Computer Engineering

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

18 Scopus citations

Abstract

We describe an experimental implementation to generate and measure high-dimensional time-bin-entangled qudits. Two-photon time-bin entanglement is generated via spontaneous four-wave mixing in single-mode fiber. Unbalanced Mach-Zehnder interferometers transform selected time bins to polarization entanglement, allowing standard polarization-projective measurements to be used for complete quantum state tomographic reconstruction. Here we generate maximally entangled qubits (d=2), qutrits (d=3), and ququarts (d=4), as well as other phase-modulated nonmaximally entangled qubits and qutrits. We reconstruct and verify all generated states using maximum-likelihood estimation tomography.

Original language	English (US)
Article number	042328
Journal	Physical Review A
Volume	94
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.94.042328
State	Published - Oct 19 2016

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.94.042328

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title = "Tomographic reconstruction of time-bin-entangled qudits",

abstract = "We describe an experimental implementation to generate and measure high-dimensional time-bin-entangled qudits. Two-photon time-bin entanglement is generated via spontaneous four-wave mixing in single-mode fiber. Unbalanced Mach-Zehnder interferometers transform selected time bins to polarization entanglement, allowing standard polarization-projective measurements to be used for complete quantum state tomographic reconstruction. Here we generate maximally entangled qubits (d=2), qutrits (d=3), and ququarts (d=4), as well as other phase-modulated nonmaximally entangled qubits and qutrits. We reconstruct and verify all generated states using maximum-likelihood estimation tomography.",

author = "Nowierski, {Samantha J.} and Oza, {Neal N.} and Prem Kumar and Kanter, {Gregory S.}",

note = "Funding Information: This research was supported in part by the ARO (Grant No. W911NF-12-1-0542). S.J.N. was supported by the NSF Graduate Research Fellowship (Grant No. DGE-1324585). N.N.O. was supported by the NSF Integrative Graduate Education and Research Traineeship (Grant No. DGE-0801685). Any opinion, findings, and conclusions or recommendations are those of the author(s) and do not necessarily reflect the views of the agencies listed above. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

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doi = "10.1103/PhysRevA.94.042328",

language = "English (US)",

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AU - Nowierski, Samantha J.

AU - Oza, Neal N.

AU - Kumar, Prem

AU - Kanter, Gregory S.

N1 - Funding Information: This research was supported in part by the ARO (Grant No. W911NF-12-1-0542). S.J.N. was supported by the NSF Graduate Research Fellowship (Grant No. DGE-1324585). N.N.O. was supported by the NSF Integrative Graduate Education and Research Traineeship (Grant No. DGE-0801685). Any opinion, findings, and conclusions or recommendations are those of the author(s) and do not necessarily reflect the views of the agencies listed above. Publisher Copyright: © 2016 American Physical Society.

PY - 2016/10/19

Y1 - 2016/10/19

N2 - We describe an experimental implementation to generate and measure high-dimensional time-bin-entangled qudits. Two-photon time-bin entanglement is generated via spontaneous four-wave mixing in single-mode fiber. Unbalanced Mach-Zehnder interferometers transform selected time bins to polarization entanglement, allowing standard polarization-projective measurements to be used for complete quantum state tomographic reconstruction. Here we generate maximally entangled qubits (d=2), qutrits (d=3), and ququarts (d=4), as well as other phase-modulated nonmaximally entangled qubits and qutrits. We reconstruct and verify all generated states using maximum-likelihood estimation tomography.

AB - We describe an experimental implementation to generate and measure high-dimensional time-bin-entangled qudits. Two-photon time-bin entanglement is generated via spontaneous four-wave mixing in single-mode fiber. Unbalanced Mach-Zehnder interferometers transform selected time bins to polarization entanglement, allowing standard polarization-projective measurements to be used for complete quantum state tomographic reconstruction. Here we generate maximally entangled qubits (d=2), qutrits (d=3), and ququarts (d=4), as well as other phase-modulated nonmaximally entangled qubits and qutrits. We reconstruct and verify all generated states using maximum-likelihood estimation tomography.

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Tomographic reconstruction of time-bin-entangled qudits

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