Bounding the outcome of a two-photon interference measurement using weak coherent states

Aragoneses, Andrés; Islam, Nurul T.; Eggleston, Michael Glenn; Lezama, A.; Kim, Jungsang; Gauthier, Daniel J.

doi:10.1364/ol.43.003806

Cited by 17 publications

(15 citation statements)

References 16 publications

(27 reference statements)

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“…In the classical-light HOM-type experiment, the maximum visibility bound limited to 50% is only partly considered to be due to the photonnumber distribution of the light source itself. In fact, the limited visibility is the only cause of the  coincidence-detection contribution arising from the path-entangled state, which is intrinsic for the two input photons only when not considering multi-photon inputs 46,49 . At the two MZI-output ports shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Experimental interference of uncorrelated photons

Kim

Kwon

Moon

2019

Sci Rep

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The distinguishing of the multiphoton quantum interference effect from the classical one forms one of the most important issues in modern quantum mechanics and experimental quantum optics. For a long time, the two-photon interference (TPI) of correlated photons has been recognized as a pure quantum effect that cannot be simulated with classical lights. In the meantime, experiments have been carried out to investigate the classical analogues of the TPI. In this study, we conduct TPI experiments with uncorrelated photons with different center frequencies from a luminescent light source, and we compare our results with the previous ones of correlated photons. The observed TPI fringe can be expressed in the form of three phase terms related to the individual single-photon and two-photon states, and the fringe pattern is strongly affected by the two single-photon-interference fringes and also by their visibilities. With the exception of essential differences such as valid and accidental coincidence events within a given resolving time and the two-photon spectral bandwidth, the interference phenomenon itself exhibits the same features for both correlated and uncorrelated photons in the single-photon counting regime.

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Section: Resultsmentioning

confidence: 99%

Experimental interference of uncorrelated photons

Kim

Kwon

Moon

2019

Sci Rep

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“…In Recent years, focal shaping of tight-focusing of laser beams such as highly confined focal spot/hole with extended focal depth, multiple focal spots, optical bubble etc., has important applications in high-density optical data storage [1], laser micro/nano-processing [2], particle and electron acceleration [3], super-resolution scanning confocal microscopy [4] and optical trapping [5]. The intensity distribution of the focal structure in the focal region has been frequently discussed [6][7][8][9][10][11][12][13]. To produce different types of intensity distribution in the focal plane one may insert a physical mask in the pupil plane of the objective [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Tight Focusing Properties of Circularly Polarized Annular Multi-Gaussian Beam through a Uniaxial Birefringent Crystal

Murugesan¹,

Thiruarul²,

Kb³

et al. 2018

Int J Opt Photonic Eng

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Focusing properties of circularly polarized annular multi-Gaussian beams through a uniaxial birefringent crystal is investigated numerically by vectorial Debye theory. Results show that the optical intensity in focal region of circularly polarized annular multi-Gaussian beams can be altered considerably by the topological charge [n], beam order [m] and birefringence [Δn]. Many novel focal structures such as focal spot, focal hole and flat top profile of sub wavelength structure are achieved.

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“…In this paper, based on the recently proposed technique to characterize linear optical networks using non-ideal input states [21][22][23][24], we propose a method to characterize a linear optical BSA using WCP. In particular, we present a method to deduce the BSA result for ideal single-photon input states using the experimental data with WCP.…”

Section: Introductionmentioning

confidence: 99%

Characterizing Bell state analyzer using weak coherent pulses

Lee¹,

Cho²,

Han³

et al. 2020

Preprint

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Bell state analyzer (BSA) is one of the most crucial apparatus in photonic quantum information processing. While linear optics provide a practical way to implement BSA, it provides unavoidable errors when inputs are not ideal single-photon states. Here, we propose a simple method to deduce the BSA for single-photon inputs using weak coherent pulses. By applying the method to Reference-Frame-Independent Measurement-Device-Independent Quantum Key Distribution, we experimentally verify the feasibility and effectiveness of the method.

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Bounding the outcome of a two-photon interference measurement using weak coherent states

Cited by 17 publications

References 16 publications

Experimental interference of uncorrelated photons

Experimental interference of uncorrelated photons

Tight Focusing Properties of Circularly Polarized Annular Multi-Gaussian Beam through a Uniaxial Birefringent Crystal

Characterizing Bell state analyzer using weak coherent pulses

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