Do we need to detect single photons to evidence interference of photon probability amplitudes?

• URL: http://arxiv.org/abs/2405.01050v3
• Date: Thu, 27 Jun 2024 05:30:34 GMT
• Title: Do we need to detect single photons to evidence interference of photon probability amplitudes?
• Authors: Eric Lantz, Fabrice Devaux, Serge Massar,
• Abstract summary: Subtracting accidental coincidences is a common practice quantum optics experiments. We show that if one removes accidental coincidences the measurement results are quantitatively the same.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Subtracting accidental coincidences is a common practice quantum optics experiments. For zero mean Gaussian states, such as squeezed vacuum, we show that if one removes accidental coincidences the measurement results are quantitatively the same, both for photon coincidences at very low flux and for intensity covariances. Consequently, pure quantum effects at the photon level, like interference of photon wave functions or photon bunching, are reproduced in the correlation of fluctuations of macroscopic beams issued from spontaneous down conversion. This is true both in experiment if the detection resolution is smaller than the coherence cell (size of the mode), and in stochastic simulations based on sampling the Wigner function. We discuss the limitations of this correspondence, such as Bell inequalities (for which one cannot substract accidental coincidences), highly multimode situations such as quantum imaging, and higher order correlations.

Related papers

• Measuring the Evolution of Entanglement in Compton Scattering [101.11630543545151]
  The behavior of quantum entanglement during scattering is identical to the behavior of initially classically correlated photons up to a constant factor equal to two. Our dedicated experiment with photons confirms these results and explains the "Puzzle of Decoherence" observed recently.
  arXiv  Detail & Related papers  (2024-06-20T14:21:23Z)
• An Easier-To-Align Hong-Ou-Mandel Interference Demonstration [0.0]
  Hong-Ou-Mandel interference experiment is a fundamental demonstration of nonclassical interference. Experiment involves the interference of two photons reaching a symmetric beamsplitter.
  arXiv  Detail & Related papers  (2023-01-17T20:12:03Z)
• Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit [50.591267188664666]
  Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. Error correction requires a recovery operation that maps the error states -- which have opposite parity -- back onto the code states. Here, we realize a collection of photon-number-selective, simultaneous photon addition operations on a bosonic mode.
  arXiv  Detail & Related papers  (2022-12-22T23:32:21Z)
• 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)
• Quantum imaging exploiting twisted photon pairs [6.939768185086755]
  We propose a quantum imaging scheme exploiting twisted photon pairs with tunable spatial-correlation regions. Our work could pave a way for twisted-photon-based quantum holography and quantum microscopy.
  arXiv  Detail & Related papers  (2022-06-13T03:16:59Z)
• A direct test for instantaneous collapse of wave functions in configuration space [0.0]
  We propose a test using two identical, non-local, correlated photons in an interferometer. Analysis of the resulting correlations constitutes a test of the instantaneousness (or non-instantaneousness) of collapse.
  arXiv  Detail & Related papers  (2022-03-25T12:11:25Z)
• Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
  Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator. We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
  arXiv  Detail & Related papers  (2021-07-23T07:30:57Z)
• 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)
• Investigating the coherent state detection probability of InGaAs/InP SPAD-based single-photon detectors [55.41644538483948]
  We investigate the probabilities of detecting single- and multi-photon coherent states on InGaAs/InP sine-gated and free-run avalanche diodes. We conclude that multi-photon state detection cannot be regarded as independent events of absorption of individual single-photon states.
  arXiv  Detail & Related papers  (2021-04-16T08:08:48Z)
• Boson sampling with random numbers of photons [0.0]
  We show a novel boson sampling scheme where the probability of success increases instead of decreasing. This is achieved by sampling at the same time in the number of occupied input ports and the number of input photons per port.
  arXiv  Detail & Related papers  (2020-06-05T17:53:07Z)

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.