Hyperentangled photon sources in semiconductor waveguides

Kang, Dongpeng; Helt, L. G.; Zhukovsky, Sergei V.; Torres, Juan P.; Sipe, J. E.; Helmy, Amr S.

doi:10.1103/physreva.89.023833

Cited by 17 publications

(12 citation statements)

References 39 publications

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“…For example, pure single-photon generation by group velocity matching can be accomplished by engineering a Bragg reflection waveguide [22], and a polarization entangled photon can be directly produced by engineering the waveguide modal birefringence [23] or the group birefringence [24]. Recently, it was proposed that mode and polarization hyperentangled photons can be generated on a chip through waveguide engineering [25].…”

Section: Introductionmentioning

confidence: 99%

Two-photon quantum state engineering in nonlinear photonic nanowires

et al. 2014

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We propose and analyze a generic technique to engineer the two-photon quantum state generated by spontaneous parametric downconversion (SPDC) in nonlinear photonic nanowires using any suitable material system. Through dispersion engineering in nanowires, the group velocity of each photon involved in the SPDC process can be tuned such that pure heralded single photons or maximally polarization entangled photons can be directly generated on a chip. Implementations in III-V semiconductor and ferroelectric waveguides demonstrate minimal frequency correlations with Schmidt numbers of ∼1 for heralded single photons, and maximal entanglement with concurrences of ∼1 for polarization entangled photons.

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Section: Introductionmentioning

confidence: 99%

Two-photon quantum state engineering in nonlinear photonic nanowires

et al. 2014

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“…In this review, we have introduced the preparation of hyperentanglement and its application in QIP. Hyperentanglement is defined as the entanglement in multiple DOFs of photon system, and it can be prepared with the combination of the techniques used for creating the entanglement in a single DOF [18][19][20][21][22][23][24][25]. In quantum communication, hyperentanglement can be used to increase the channel capacity largely, besides its application for assisting the implementation of quantum communication protocols based on one DOF.…”

Section: Discussion and Summarymentioning

confidence: 99%

“…In experiment, hyperentanglement can be generated by the combination of the techniques used for creating entanglement in a single DOF [17]. With this method, many different types of hyperentangled states can be prepared [18][19][20][21][22][23][24][25], such as the polarization-spatial hyperentangled state [18], polarization-spatial-time-energy hyperentangled state [19], and so on. Hyperentanglement is a fascinating resource for quantum communication and quantum computation.…”

Section: Introductionmentioning

confidence: 99%

Quantum hyperentanglement and its applications in quantum information processing

2017

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Hyperentanglement is a promising resource in quantum information processing with its high capacity character, defined as the entanglement in multiple degrees of freedom (DOFs) of a quantum system, such as polarization, spatial-mode, orbit-angular-momentum, time-bin and frequency DOFs of photons. Recently, hyperentanglement attracts much attention as all the multiple DOFs can be used to carry information in quantum information processing fully. In this review, we present an overview of the progress achieved so far in the field of hyperentanglement in photon systems and some of its important applications in quantum information processing, including hyperentanglement generation, complete hyperentangled-Bell-state analysis, hyperentanglement concentration, and hyperentanglement purification for high-capacity long-distance quantum communication. Also, a scheme for hyper-controlled-not gate is introduced for hyperparallel photonic quantum computation, which can perform two controlled-not gate operations on both the polarization and spatial-mode DOFs and depress the resources consumed and the photonic dissipation.

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“…As entangled photon pairs in their general form (for hyper-entangled photons, see [57,58]) are emitted, twophoton amplitudes Φ depending on both transverse-plane variables and frequencies are needed in their description. They generalize the two-photon spectral amplitudes Φ ηp ηsηi (ω s , ω i ) defined in Eq.…”

Section: Oam Decomposition Of Modes In the Transverse Planementioning

confidence: 99%

Emission of orbital-angular-momentum-entangled photon pairs in a nonlinear ring fiber utilizing spontaneous parametric down-conversion

2014

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We suggest the generation of photon pairs in a thermally induced nonlinear periodically poled silica fiber by spontaneous parametric down-conversion. Photons are generated directly in eigenstates of optical angular momentum. Photons in a pair can be entangled in these states as well as in frequencies. We identify suitable spatial and polarization modes giving an efficient nonlinear interaction. By changing the pump field properties both narrow-and broadband down-converted fields can be obtained.

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Hyperentangled photon sources in semiconductor waveguides

Cited by 17 publications

References 39 publications

Two-photon quantum state engineering in nonlinear photonic nanowires

Two-photon quantum state engineering in nonlinear photonic nanowires

Quantum hyperentanglement and its applications in quantum information processing

Emission of orbital-angular-momentum-entangled photon pairs in a nonlinear ring fiber utilizing spontaneous parametric down-conversion

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