Lost photon enhances superresolution
- URL: http://arxiv.org/abs/2101.05849v1
- Date: Thu, 14 Jan 2021 19:55:56 GMT
- Title: Lost photon enhances superresolution
- Authors: A. Mikhalychev, P. Novik, I. Karuseichyk, D. A. Lyakhov, D. L.
Michels, and D. Mogilevtsev
- Abstract summary: Quantum imaging can beat classical resolution limits, imposed by diffraction of light.
We show that for measuring $(n-1)$-photon coincidences, PSF can be made even narrower.
This observation paves a way for a strong conditional resolution enhancement by registering one of the photons outside the imaging area.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Quantum imaging can beat classical resolution limits, imposed by diffraction
of light. In particular, it is known that one can reduce the image blurring and
increase the achievable resolution by illuminating an object by entangled light
and measuring coincidences of photons. If an $n$-photon entangled state is used
and the $n$th-order correlation function is measured, the point-spread function
(PSF) effectively becomes $\sqrt n$ times narrower relatively to classical
coherent imaging. Quite surprisingly, measuring $n$-photon correlations is not
the best choice if an $n$-photon entangled state is available. We show that for
measuring $(n-1)$-photon coincidences (thus, ignoring one of the available
photons), PSF can be made even narrower. This observation paves a way for a
strong conditional resolution enhancement by registering one of the photons
outside the imaging area. We analyze the conditions necessary for the
resolution increase and propose a practical scheme, suitable for observation
and exploitation of the effect.
Related papers
- Photon discerner: Adaptive quantum optical sensing near the shot noise
limit [0.0]
We propose a novel detection approach, that we call photon discerning', for photon statistical estimation.
Our photon discerner is motivated by the field of neural networks where tunable thresholds have proven efficient for isolating optimal decision boundaries.
Our work suggests a new class of detectors for information-theory driven, compact, and learning-based quantum optical sensing.
arXiv Detail & Related papers (2023-07-27T18:35:02Z) - Quantum correlation light-field microscope with extreme depth of field [0.0]
Light-field microscopy (LFM) is a 3D microscopy technique whereby information of a sample is gained in a single shot.
In this work, we demonstrate a LFM design that does not require a trade-off between position and angular resolution.
We demonstrate that a resolving power of 5$mu$m can be maintained with a DOF of $sim500$$mu$m, over an order of magnitude larger compared to conventional LFM designs.
arXiv Detail & Related papers (2022-12-23T20:43:56Z) - On-chip quantum information processing with distinguishable photons [55.41644538483948]
Multi-photon interference is at the heart of photonic quantum technologies.
Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources.
We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
arXiv Detail & Related papers (2022-10-14T18:16:49Z) - 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) - Quantum density matrix theory for a laser without adiabatic elimination
of the population inversion: transition to lasing in the class-B limit [62.997667081978825]
No class-B quantum density-matrix model is available to date, capable of accurately describing coherence and photon correlations within a unified theory.
Here we carry out a density-matrix theoretical approach for generic class-B lasers, and provide closed equations for the photonic and atomic reduced density matrix in the Fock basis of photons.
This model enables the study of few-photon bifurcations and non-classical photon correlations in class-B laser devices, also leveraging quantum descriptions of coherently coupled nanolaser arrays.
arXiv Detail & Related papers (2022-05-26T16:33:51Z) - Distillation of Indistinguishable Photons [0.0]
A reliable source of identical (indistinguishable) photons is a prerequisite for interference effects.
We present a protocol which can be used to increase the indistinguishability of a photon source, to arbitrary accuracy.
We demonstrate the scheme is robust to detection and control errors in the optical components, and discuss the effect of other error sources.
arXiv Detail & Related papers (2022-03-29T02:27:07Z) - Optical super-resolution sensing of a trapped ion's wave packet size [26.98676199482944]
We demonstrate super-resolution optical sensing of the size of the wave packet of a single trapped ion.
Our method extends the well known ground state depletion (GSD) technique to the coherent regime.
arXiv Detail & Related papers (2021-04-14T19:44:01Z) - Optical amplification for astronomical imaging at higher resolution [0.0]
Heisenberg's uncertainty principle tells us that it is impossible to determine simultaneously the position of a photon crossing a telescope's aperture and its momentum.
Super-resolution imaging techniques rely on modification of the observed sample, or on entangling photons.
We show that it is possible to increase the weight of the stimulated photons by considering photon statistics.
arXiv Detail & Related papers (2021-03-24T10:48:50Z) - Optimised Domain-engineered Crystals for Pure Telecom Photon Sources [101.18253437732933]
We present a telecom-wavelength parametric down-conversion photon source that operates on the achievable limit of domain engineering.
We generate photons from independent sources which achieve two-photon interference visibilities of up to $98.6pm1.1%$ without narrow-band filtering.
arXiv Detail & Related papers (2021-01-20T19:00:04Z) - A bright and fast source of coherent single photons [46.25143811066789]
A single photon source is a key enabling technology in device-independent quantum communication.
We report a single photon source with an especially high system efficiency.
arXiv Detail & Related papers (2020-07-24T17:08:46Z) - Deep Photon Mapping [59.41146655216394]
In this paper, we develop the first deep learning-based method for particle-based rendering.
We train a novel deep neural network to predict a kernel function to aggregate photon contributions at shading points.
Our network encodes individual photons into per-photon features, aggregates them in the neighborhood of a shading point, and infers a kernel function from the per-photon and photon local context features.
arXiv Detail & Related papers (2020-04-25T06:59:10Z)
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.