Entangled photon-pair sources based on three-wave mixing in bulk crystals

A Anwar, C Perumangatt, F Steinlechner… - Review of Scientific …, 2021‏ - pubs.aip.org
Entangled photon pairs are a critical resource in quantum communication protocols ranging
from quantum key distribution to teleportation. The current workhorse technique for …

Entanglement-enhanced probing of a delicate material system

F Wolfgramm, C Vitelli, FA Beduini, N Godbout… - Nature …, 2013‏ - nature.com
Quantum metrology uses entanglement,,, and other quantum effects to improve the
sensitivity of demanding measurements,,. Probing of delicate systems demands high …

Ion–laser interactions: The most complete solution

H Moya-Cessa, F Soto-Eguibar, JM Vargas-Martínez… - Physics Reports, 2012‏ - Elsevier
Trapped ions are considered one of the best candidates to perform quantum information
processing. By interacting them with laser beams they are, somehow, easy to manipulate …

Atom-resonant heralded single photons by interaction-free measurement

F Wolfgramm, YA de Icaza Astiz, FA Beduini, A Cere… - Physical Review Letters, 2011‏ - APS
We demonstrate the generation of rubidium-resonant heralded single photons for quantum
memories. Photon pairs are created by cavity-enhanced down-conversion and narrowed in …

Quantum estimation of the stokes vector rotation for a general polarimetric transformation

A Pedram, VR Besaga, L Gassab… - New Journal of …, 2024‏ - iopscience.iop.org
Classical polarimetry is a well-established discipline with diverse applications across
different branches of science. The burgeoning interest in leveraging quantum resources to …

Nonlinear power dependence of the spectral properties of an optical parametric oscillator below threshold in the quantum regime

G Shafiee, DV Strekalov, A Otterpohl… - New Journal of …, 2020‏ - iopscience.iop.org
Photon pairs and heralded single photons, obtained from cavity-assisted parametric down
conversion (PDC), play an important role in quantum communications and technology. This …

Atomic quantum metrology with narrowband entangled and squeezed states of light

F Wolfgramm - 2012‏ - upcommons.upc.edu
The use of light, especially of laser light, is in many cases the most sensitive way to perform
measurements. However, the highest sensitivity that can be achieved with laser light as …

Generation of NOON states in waveguide arrays

F Soto‐Eguibar, HM Moya‐Cessa - Annalen Der Physik, 2019‏ - Wiley Online Library
A method to generate NOON states with three photons by injecting photons in an array of
three waveguides is presented. Conditional measurements project the wave function in a …

Optical spin squeezing: bright beams as high-flux entangled photon sources

FA Beduini, MW Mitchell - Physical Review Letters, 2013‏ - APS
In analogy with the spin-squeezing inequality of Wang and Sanders [Phys. Rev. A 68,
012101 (2003) PLRAAN 1050-2947 10.1103/PhysRevA. 68.012101], we find inequalities …

Overcomplete quantum tomography of a path-entangled two-photon state

L De Santis, G Coppola, C Antón, N Somaschi… - Physical Review A, 2019‏ - APS
Path-entangled N-photon states are key resources for quantum enhanced metrology and
quantum imaging, as well as quantum computation. However, the quantum tomography of …