165 citations · 830 across the 14 of their papers we have counts for
14 papers
Control and measurement of electric dipole moments in levitated optomechanics
Gadi Afek, Fernando Monteiro, Benjamin Siegel +5
Levitated optomechanical systems are rapidly becoming leading tools for precision sensing, enabling a high level of control over the sensor's center of mass motion, rotation and el…
Limits on the abundance of millicharged particles bound to matter
Gadi Afek, Fernando Monteiro, Jiaxiang Wang +3
Millicharged particles (mCPs) are hypothesized particles possessing an electric charge that is a fraction of the charge of the electron. We report a search for mCPs with charges $\…
Mechanical Quantum Sensing in the Search for Dark Matter
Daniel Carney, Gordan Krnjaic, David C. Moore +32
Numerous astrophysical and cosmological observations are best explained by the existence of dark matter, a mass density which interacts only very weakly with visible, baryonic matt…
Search for composite dark matter with optically levitated sensors
Fernando Monteiro, Gadi Afek, Daniel Carney +3
Results are reported from a search for a class of composite dark matter models with feeble, long-range interactions with normal matter. We search for impulses arising from passing…
Force and acceleration sensing with optically levitated nanogram masses at microkelvin temperatures
Fernando Monteiro, Wenqiang Li, Gadi Afek +3
This paper demonstrates cooling of the center-of-mass motion of 10 m-diameter optically levitated silica spheres to an effective temperature of K, achieved by minimiz…
Optical Rotation of Levitated Spheres in High Vacuum
Fernando Monteiro, Sumita Ghosh, Elizabeth C. van Assendelft +1
A circularly polarized laser beam is used to levitate and control the rotation of microspheres in high vacuum. At low pressure, rotation frequencies as high as 6 MHz are observed f…
Optical levitation of 10 nanogram spheres with nano- acceleration sensitivity
Fernando Monteiro, Sumita Ghosh, Adam Getzels Fine +1
We demonstrate optical levitation of SiO spheres with masses ranging from 0.1 to 30 nanograms. In high vacuum, we observe that the measured acceleration sensitivity improves fo…
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…
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…
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…
Intrinsically stable light source at telecom wavelengths
Fernando Monteiro, Thiago Guerreiro, Bruno Sanguinetti +1
We present a highly stable light source at telecom wavelengths, based on a short erbium doped fiber. The high stability arises from the high inversion of the Er3+ion population. Th…
Measuring absolute spectral radiance using an Erbium Doped Fibre Amplifier
Bruno Sanguinetti, Thiago Guerreiro, Fernando Monteiro +2
We describe a method to measure the spectral radiance of a source in an absolute way without the need of a reference. Here we give the necessary detail to allow for the device to b…
An Energy Puzzle in Quantum Collapse
Thiago Guerreiro, Fernando Monteiro
Since its discovery, quantum theory has proven to be one of the most precise theories ever made. Measurement processes, however, do not seem to be governed by the unitary law of qu…