activity
20192025
most citedLight from an ion crystal: bunching or antibunching?

49 citations · 159 across the 9 of their papers we have counts for

collaborators

9 papers

astro-ph.CO2025

BICEP/Keck XX: Component-separated maps of polarized CMB and thermal dust emission using Planck and BICEP/Keck Observations through the 2018 Observing Season

Keck Collaboration, P. A. R. Ade, Z. Ahmed +94

We present component-separated polarization maps of the cosmic microwave background (CMB) and Galactic thermal dust emission, derived using data from the BICEP/Keck experiments thr…

astro-ph.IM2023★ 5 cited

Photon counting intensity interferometry in the blue at a 0.5 m telescope

Sebastian Karl, Stefan Richter, Joachim von Zanthier

Intensity interferometry is a re-emerging interferometry tool that alleviates some of the challenges of amplitude interferometry at the cost of reduced sensitivity. We demonstrate…

astro-ph.CO2022★ 36 cited

BICEP / Keck XVII: Line of Sight Distortion Analysis: Estimates of Gravitational Lensing, Anisotropic Cosmic Birefringence, Patchy Reionization, and Systematic Errors

Keck Collaboration, P. A. R. Ade, Z. Ahmed +91

We present estimates of line-of-sight distortion fields derived from the 95 GHz and 150 GHz data taken by BICEP2, BICEP3, and Keck Array up to the 2018 observing season, leading to…

astro-ph.GA2022★ 20 cited

BICEP / Keck XVI: Characterizing Dust Polarization through Correlations with Neutral Hydrogen

Keck Collaboration, P. A. R. Ade, Z. Ahmed +92

We characterize Galactic dust filaments by correlating BICEP/Keck and Planck data with polarization templates based on neutral hydrogen (H I) observations. Dust polarization is imp…

quant-ph2022★ 1 cited

Collective photon emission patterns from two atoms in free space

Stefan Richter, Sebastian Wolf, Joachim von Zanthier +1

Modification of spontaneous decay in space and time is a central topic of quantum physics. It has been predominantly investigated in the context of cavity quantum electrodynamics (…

astro-ph.IM2022★ 8 cited

Comparing Different Approaches for Stellar Intensity Interferometry

Sebastian Karl, Andreas Zmija, Stefan Richter +7

Stellar intensity interferometers correlate photons within their coherence time and could overcome the baseline limitations of existing amplitude interferometers. Intensity interfe…

astro-ph.IM2021★ 26 cited

A quantitative comparison of amplitude versus intensity interferometry for astronomy

Manuel Bojer, Zixin Huang, Sebastian Karl +3

Astronomical imaging can be broadly classified into two types. The first type is amplitude interferometry, which includes conventional optical telescopes and Very Large Baseline In…

quant-ph2020★ 14 cited

Imaging trapped ion structures via fluorescence cross-correlation detection

Stefan Richter, Sebastian Wolf, Joachim von Zanthier +1

Cross-correlation signals are recorded from fluorescence photons scattered in free space off a trapped ion structure. The analysis of the signal allows for unambiguously revealing…

quant-ph2019★ 49 cited

Light from an ion crystal: bunching or antibunching?

Sebastian Wolf, Stefan Richter, Joachim von Zanthier +1

Photon statistics divides light sources into three different categories, characterized by bunched, antibunched or uncorrelated photon arrival times. Single atoms, ions, molecules,…