Publications (13)
Analysis of the dynamics of a spacecraft in the vicinity of an asteroid binary system with equal masses
L. B. T. Santos, P. A. Sousa-Silva, M. O. Terra +8
In this work, we performed a dynamical analysis of a spacecraft around a nearly equal-mass binary near-Earth asteroid with application to the asteroid 2017 YE5, which is also a pos…
Heralded Amplification of Path Entangled Quantum States
F. Monteiro, E. Verbanis, V. Caprara Vivoli +4
Device-independent quantum key distribution (DI-QKD) represents one of the most fascinating challenges in quantum communication, exploiting concepts of fundamental physics, namely…
Demonstration of EPR steering using single-photon path entanglement and displacement-based detection
T. Guerreiro, F. Monteiro, A. Martin +15
We demonstrate the violation of an EPR steering inequality developed for single photon path entanglement with displacement-based detection. We use a high-rate source of heralded si…
Narrowband Photon Pair Source for Quantum Networks
F. Monteiro, A. Martin, B. Sanguinetti +2
We demonstrate a compact photon pair source based on a periodically poled lithium niobate nonlinear crystal in a cavity. The cavity parameters are chosen such that the emitted phot…
Asteroid sizes determined with thermophysical model and stellar occultations
A. Choukroun, A. Marciniak, J. Äurech +165
Context. The sizes of many asteroids, especially slowly rotating, low-amplitude targets, remain poorly constrained due to selection effects. These biases limit the availability of…
Revealing Genuine Optical-Path Entanglement
F. Monteiro, V. Caprara Vivoli, T. Guerreiro +5
How can one detect entanglement between multiple optical paths sharing a single photon? We address this question by proposing a scalable protocol, which only uses local measurement…
Borderline hyperbolic comet C/2021 O3 (PANSTARRS) was fading as it approached the Sun
M. Evangelista-Santana, M. De Prá, J. M. Carvano +13
We present an observational and numerical study of the borderline hyperbolic comet C/2021 O3 (PANSTARRS) performed during its recent passage through the inner Solar system. Our obs…
Scaling slowly rotating asteroids by stellar occultations
A. Marciniak, J. Äurech, A. Choukroun +176
As evidenced by recent survey results, majority of asteroids are slow rotators (P>12 h), but lack spin and shape models due to selection bias. This bias is skewing our overall unde…
A generalized dipole-segment model for the gravitational field of elongated bodies
A. K. de Almeida, A. F. S. Ferreira, L. B. T. Santos +6
Context. Various simplified models have been investigated to understand the complex dynamical environment near irregular asteroids. We propose a generalized dipole-segment model (G…
An investigation of the low-DeltaV near-Earth asteroids (341843) 2008 EV5 and (52381) 1993 HA. Two suitable targets for the ARM and MarcoPolo-M5 space missions
D. Perna, M. Popescu, F. Monteiro +3
The Asteroid Redirect Mission (ARM) under development by NASA is being planned to collect a multi-meter boulder from a near-Earth asteroid (NEA), and to bring it to the cis-lunar s…
Optimal transfers from Moon to halo orbit of the Earth-Moon system
L. B. T. Santos, Allan Kardec de Almeida, P. A. Sousa-Silva +4
In this paper, we seek optimal solutions for a transfer from a parking orbit around the Moon to a halo orbit around of the Earth-Moon system, by applying a single maneuver an…
Properties of slowly rotating asteroids from the Convex Inversion Thermophysical Model
A. Marciniak, J. Äurech, V. AlÃ-Lagoa +73
Results from the TESS mission showed that previous studies strngly underestimated the number of slow rotators, revealing the importance of studying those asteroids. For most slowly…
Thermal properties of slowly rotating asteroids: Results from a targeted survey
A. Marciniak, V. AlÃ-Lagoa, T. G. Müller +51
Context. Earlier work suggests that slowly rotating asteroids should have higher thermal inertias than faster rotators because the heat wave penetrates deeper into the sub-surface.…