Photonic Entanglement and Polarization Nonclassicality: Two Manifestations, One Nature

• URL: http://arxiv.org/abs/2407.07477v1
• Date: Wed, 10 Jul 2024 09:08:45 GMT
• Title: Photonic Entanglement and Polarization Nonclassicality: Two Manifestations, One Nature
• Authors: Laura Ares, Nidhin Prasannan, Elizabeth Agudelo, Alfredo Luis, Benjamin Brecht, Christine Silberhorn, Jan Sperling,
• Abstract summary: We analyze nonclassicality and multi-photon entanglement within the same framework. Our findings show how nonclassical polarization turns out to be equally resourceful for quantum protocols as entanglement.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate in theory and experiment the strict equivalence between nonclassical polarization and the entanglement of indistinguishable photons, thereby unifying these two phenomena that appear dissimilar at first sight. This allows us to analyze nonclassicality and multi-photon entanglement within the same framework. We experimentally verify this double-sided form of quantumness and its independence from the polarization basis, contrasting other notions of coherence that are highly basis-dependent. Our findings show how nonclassical polarization turns out to be equally resourceful for quantum protocols as entanglement, emphasizing its importance in practical applications.

Related papers

• Two photons everywhere [0.0]
  We show that the basic concepts of interferences and correlations provide at the two-photon level an independent and drastically different picture than at the one-photon level.
  arXiv  Detail & Related papers  (2024-02-21T18:50:50Z)
• Quantum vortices of strongly interacting photons [52.131490211964014]
  Vortices are hallmark of nontrivial dynamics in nonlinear physics. We report on the realization of quantum vortices resulting from a strong photon-photon interaction in a quantum nonlinear optical medium. For three photons, the formation of vortex lines and a central vortex ring attests to a genuine three-photon interaction.
  arXiv  Detail & Related papers  (2023-02-12T18:11:04Z)
• Entanglement of annihilation photons [141.5628276096321]
  We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest. Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
  arXiv  Detail & Related papers  (2022-10-14T08:21:55Z)
• Anti-Correlated Photons from Classical Electromagnetism [0.0]
  An experiment with two entangled photons can have zero probability for a precise choice of basis. It is surprising that these very anti-correlations are also evident when the input to the same experiment is analyzed via classical electromagnetic theory.
  arXiv  Detail & Related papers  (2022-08-11T12:35:21Z)
• Nonclassical correlated deterministic single-photon pairs for a trapped atom in bimodal cavities [0.0]
  Single photons and single-photon pairs, inherently nonclassical in their nature, are fundamental elements of quantum sciences and technologies. We propose to realize the nonclassical correlated deterministic photon pairs at the single-photon level for a single atom trapped in bimodal cavities.
  arXiv  Detail & Related papers  (2022-04-15T08:05:26Z)
• Genuine multipartite entanglement and quantum coherence in an electron-positron system: Relativistic covariance [117.44028458220427]
  We analyze the behavior of both genuine multipartite entanglement and quantum coherence under Lorentz boosts. A given combination of these quantum resources is shown to form a Lorentz invariant.
  arXiv  Detail & Related papers  (2021-11-26T17:22:59Z)
• Observation-dependent suppression and enhancement of two-photon coincidences by tailored losses [68.8204255655161]
  Hong-Ou-Mandel (HOM) effect can lead to a perfect suppression of two-particle coincidences between the output ports of a balanced beam splitter. In this work, we demonstrate experimentally that the two-particle coincidence statistics of two bosons can instead be seamlessly tuned to substantial enhancement. Our findings reveal a new approach to harnessing non-Hermitian settings for the manipulation of multi-particle quantum states.
  arXiv  Detail & Related papers  (2021-05-12T06:47:35Z)
• Observations of near-perfect nonclassical correlation using coherent light [12.507208769851653]
  We show the physics of anticorrelation on a beam splitter using sub-Poisson distributed coherent photons. A particular phase relation between paired photons is unveiled for anticorrelation, satisfying the complementarity theory of quantum mechanics.
  arXiv  Detail & Related papers  (2021-05-05T04:27:51Z)
• Light-matter interactions near photonic Weyl points [68.8204255655161]
  Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point. We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
  arXiv  Detail & Related papers  (2020-12-23T18:51:13Z)
• Quantum-Clustered Two-Photon Walks [68.8204255655161]
  We demonstrate a previously unknown two-photon effect in a discrete-time quantum walk. Two identical bosons with no mutual interactions can remain clustered together. The two photons move in the same direction at each step due to a two-photon quantum interference phenomenon.
  arXiv  Detail & Related papers  (2020-03-12T17:02:35Z)
• Bell-type Polarization Experiment With Pairs Of Uncorrelated Optical Photons [0.0]
  We present a Bell-type polarization experiment using two independent sources of polarized optical photons. We detect the temporal coincidence of pairs of uncorrelated photons which have never been entangled in the apparatus.
  arXiv  Detail & Related papers  (2020-02-07T11:43:03Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.