Spatial correlations in parametric down-conversion

SP Walborn, CH Monken, S Pádua, PHS Ribeiro - Physics Reports, 2010 - Elsevier
The transverse spatial effects observed in photon pairs produced by parametric down-
conversion provide a robust and fertile testing ground for studies of quantum mechanics …

Hologram of a single photon

R Chrapkiewicz, M Jachura, K Banaszek… - Nature …, 2016 - nature.com
The spatial structure of single photons,, is becoming an extensively explored resource to
facilitate free-space quantum communication,,, and quantum computation as well as for …

Implementation of quantum and classical discrete fractional Fourier transforms

S Weimann, A Perez-Leija, M Lebugle, R Keil… - Nature …, 2016 - nature.com
Fourier transforms, integer and fractional, are ubiquitous mathematical tools in basic and
applied science. Certainly, since the ordinary Fourier transform is merely a particular case of …

Observation of two-photon speckle patterns

WH Peeters, JJD Moerman, MP Van Exter - Physical review letters, 2010 - APS
We report the observation of speckle patterns in quantum correlations within light that is
scattered by a disordered medium. The random medium is illuminated with spatially …

Direct measurement of transverse-mode entanglement in two-photon states

H Di Lorenzo Pires, CH Monken, MP Van Exter - Physical Review A—Atomic …, 2009 - APS
We introduce and experimentally demonstrate a method to measure the Schmidt number of
pure two-photon states entangled in transverse-mode structure. Our method is based on the …

High-capacity angularly multiplexed holographic memory operating at the single-photon level

R Chrapkiewicz, M Dąbrowski, W Wasilewski - Physical review letters, 2017 - APS
We experimentally demonstrate an angularly multiplexed holographic memory capable of
intrinsic generation, storage, and retrieval of multiple photons, based on an off-resonant …

Experimental simulation of decoherence in photonics qudits

B Marques, AA Matoso, WM Pimenta… - Scientific reports, 2015 - nature.com
We experimentally perform the simulation of open quantum dynamics in single-qudit
systems. Using a spatial light modulator as a dissipative optical device, we implement …

Manipulating spatial qudit states with programmable optical devices

G Lima, A Vargas, L Neves, R Guzmán, C Saavedra - Optics express, 2009 - opg.optica.org
The study of how to generate high-dimensional quantum states (qudits) is justified by the
advantages that they can bring for the field of quantum information. However, to have some …

Einstein–Podolsky–Rosen paradox in a hybrid bipartite system

M Dąbrowski, M Parniak, W Wasilewski - Optica, 2017 - opg.optica.org
Entanglement of light and matter is an essential resource for effective quantum engineering.
In particular, collective states of atomic ensembles are robust against decoherence while …

Coincidence detection of spatially correlated photon pairs with a monolithic time-resolving detector array

M Unternährer, B Bessire, L Gasparini, D Stoppa… - Optics express, 2016 - opg.optica.org
We demonstrate coincidence measurements of spatially entangled photons by means of a
multi-pixel based detection array. The sensor, originally developed for positron emission …