Results 41 to 50 of about 47,664 (300)

Phase-noise protection in quantum-enhanced differential interferometry

open access: yesNew Journal of Physics, 2014
Differential interferometry (DI) with two coupled sensors is a most powerful approach for precision measurements in the presence of strong phase noise. However, DI has been studied and implemented only with classical resources.
M Landini, M Fattori, L Pezzè, A Smerzi
doaj   +1 more source

Gravitational Redshift in Quantum-Clock Interferometry

open access: yesPhysical Review X, 2020
The creation of delocalized coherent superpositions of quantum systems experiencing different relativistic effects is an important milestone in future research at the interface of gravity and quantum mechanics.
Albert Roura
doaj   +1 more source

Reservoir Dam Surface Deformation Monitoring by Differential GB-InSAR Based on Image Subsets

open access: yesSensors, 2020
Ground-based synthetic aperture radar interferometry (GB-InSAR) enables the continuous monitoring of areal deformation and can thus provide near-real-time control of the overall deformation state of dam surfaces. In the continuous small-scale deformation
Peng Wang, Cheng Xing, Xiandong Pan
doaj   +1 more source

Quantum-enhanced differential atom interferometers and clocks with spin-squeezing swapping [PDF]

open access: yesQuantum, 2023
Thanks to common-mode noise rejection, differential configurations are crucial for realistic applications of phase and frequency estimation with atom interferometers.
Robin Corgier   +3 more
doaj   +1 more source

Experiments in Differential Speckle Interferometry [PDF]

open access: yesInternational Astronomical Union Colloquium, 1982
AbstractWe propose to develop a technique to achieve submillisecond of arc resolution on stellar objects. It uses the fact that the spectrum of the light emitted by such an object often changes across its surface either because of Doppler shifts, Zeeman splitting, abundance anomalies or changes in the stellar atmosphere.
Jacques M. Beckers, E. Keith Hege
openaire   +1 more source

ASSESSMENT OF LAND DEFORMATION AND LAND USE RELATIONSHIP IN GARMSAR ALLUVIAL FAN USING SENTINEL-1 DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Differential Synthetic Aperture Radar Interferometry (DInSAR) allows displacements to be detected with millimeter accuracy as well as more advanced methods, such as Persistent Scatterer Interferometry (PSI).
F. Rafiei   +2 more
doaj   +1 more source

Detection and Monitoring of Active Faults in Urban Environments: Time Series Interferometry on the Cities of Patras and Pyrgos (Peloponnese, Greece)

open access: yesRemote Sensing, 2009
Monitoring of active faults in urban areas is of great importance, providing useful information to assess seismic hazards and risks. The present study concerns the monitoring of the potential ground deformation caused by the active tectonism in the ...
Michael Foumelis   +3 more
doaj   +1 more source

Phase retrieval based on deep learning in grating interferometer

open access: yesScientific Reports, 2022
Grating interferometry is a promising technique to obtain differential phase contrast images with illumination source of low intrinsic transverse coherence.
Ohsung Oh   +4 more
doaj   +1 more source

Testing the universality of free fall with rubidium and ytterbium in a very large baseline atom interferometer [PDF]

open access: yes, 2015
We propose a very long baseline atom interferometer test of Einstein's equivalence principle (EEP) with ytterbium and rubidium extending over 10m of free fall.
Abend, Sven   +8 more
core   +3 more sources

Diffraction-limited polarimetric imaging of protoplanetary disks and mass-loss shells with VAMPIRES [PDF]

open access: yes, 2020
Both the birth and death of a stellar system are areas of key scientific importance. Whether it's understanding the process of planetary formation in a star's early years, or uncovering the cause of the enormous mass-loss that takes place during a star's
Cvetojevic, Nick   +6 more
core   +1 more source

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