Comparative study of nonclassicality, entanglement, and dimensionality of multimode noisy twin beams

Arkhipov, Ievgen I.; Peřina, Jan; Miranowicz, Adam

doi:10.1103/physreva.91.033837

Cited by 31 publications

(30 citation statements)

References 75 publications

(136 reference statements)

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“…We note that quantum properties of such weak noisy twin beams in multi-mode Gaussian states have been theoretically analyzed in Ref. [47] and their nonclassicality invariant describing the behavior of their entanglement on a beam-splitter has been discussed in Refs. [48,49].…”

Section: Nonclassicality Criteria Based On the Elements Of Photocmentioning

confidence: 99%

Nonclassicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors

Peřina¹,

Arkhipov²,

Michálek³

et al. 2017

Phys. Rev. A

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Numerous inequalities involving moments of integrated intensities and revealing nonclassicality and entanglement in bipartite optical fields are derived using the majorization theory, non-negative polynomials, the matrix approach, as well as the Cauchy-Schwarz inequality. Different approaches for deriving these inequalities are compared. Using the experimental photocount histogram generated by a weak noisy twin beam monitored by a photon-number-resolving iCCD camera the performance of the derived inequalities is compared. A basic set of ten inequalities suitable for monitoring the entanglement of a twin beam is suggested. Inequalities involving moments of photocounts (photon numbers) as well as those containing directly the elements of photocount (photon-number) distributions are also discussed as a tool for revealing nonclassicality.

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Section: Nonclassicality Criteria Based On the Elements Of Photocmentioning

confidence: 99%

Nonclassicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors

Peřina¹,

Arkhipov²,

Michálek³

et al. 2017

Phys. Rev. A

Self Cite

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“…Its entanglement, which is responsible for its non-classicality, has been theoretically analyzed in Ref. 39 where negativity N, which is an entanglement measure, 40 intensity moments up to the sixth order and the elements of photon-number distribution for up to six photons. We note that the consideration of lower-order intensity moments is natural as the experimental error increases with the increasing order of intensity moments.…”

Section: Identification Of Non-classicality Of Twin Beamsmentioning

confidence: 99%

“…Such twin beams have been theoretically investigated in Ref. 39 with the conclusion that only the twin beams with B s < 1 and arbitrary B p exhibit non-classicality. The GNCCa E W k 1 ,k 2 and E p k 1 ,k 2 reveal non-classicality only for some noisy twin beams, especially those with smaller amount of the noise [see Fig.…”

Section: Identification Of Non-classicality Of Twin Beamsmentioning

confidence: 99%

Experimental identification of non-classicality of noisy twin beams and other related two-mode states

Arkhipov

Peřina

2018

Sci Rep

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Different non-classicality criteria expressed in the form of inequalities among intensity moments and elements of photon-number distributions are applied to noisy twin beams and other two-mode states obtained from a twin beam by using a beam splitter. Their performance in revealing the non-classicality is judged in comparison with the exact results provided by suitable entanglement and local non-classicality quantifiers. Whereas the non-classicality of noisy twin beams is always revealed by these criteria, not all the nonclassical states obtained at the output of the beam splitter can be identified by these experimentally easily reachable criteria.

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“…It has been shown in Ref. [36] that whenever the overall noise B s + B i exceeds one, the twin beam is unentangled and, thus, it cannot generate any nonclassical feature. Even if B s + B i < 1, the mean photon-pair number B p has to be sufficiently large, as given by…”

Section: Twin Beammentioning

confidence: 99%

Interplay of nonclassicality and entanglement of two-mode Gaussian fields generated in optical parametric processes

2016

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The behavior of general nonclassical two-mode Gaussian states at a beam splitter is investigated. Single-mode nonclassicality as well as two-mode entanglement of both input and output states are analyzed suggesting their suitable quantifiers. These quantifiers are derived from local and global invariants of linear unitary two-mode transformations such that the sum of input (or output) local nonclassicality measures and entanglement measure gives a global invariant. This invariant quantifies the global nonclassicality resource. Mutual transformations of local nonclassicalities and entanglement induced by the beam splitter are analyzed considering incident noisy twin beams, single-mode noisy squeezed vacuum states, and states encompassing both squeezed states and twin beams. A rich tapestry of interesting nonclassical output states is predicted.

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Comparative study of nonclassicality, entanglement, and dimensionality of multimode noisy twin beams

Cited by 31 publications

References 75 publications

Nonclassicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors

Nonclassicality and entanglement criteria for bipartite optical fields characterized by quadratic detectors

Experimental identification of non-classicality of noisy twin beams and other related two-mode states

Interplay of nonclassicality and entanglement of two-mode Gaussian fields generated in optical parametric processes

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