E. Calloni
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View article: The impact of local noise recorded at the ET candidate sites on the signal to noise ratio of CBC gravitational wave signals for the ET triangle configuration
The impact of local noise recorded at the ET candidate sites on the signal to noise ratio of CBC gravitational wave signals for the ET triangle configuration Open
We present an evaluation of how site dependent noise can affect the signal to noise ratio (SNR) of compact binary coalescence (CBC) signals in the future 3rd generation gravitational wave (GW) detector Einstein telescope (ET). The design o…
View article: Adaptive algorithms for low-latency cancellation of seismic Newtonian-noise at the Virgo gravitational-wave detector
Adaptive algorithms for low-latency cancellation of seismic Newtonian-noise at the Virgo gravitational-wave detector Open
A system was recently implemented in the Virgo detector to cancel noise in its data produced by seismic waves directly coupling with the suspended test masses through gravitational interaction. The data from seismometers are being filtered…
View article: Thermal noise-limited beam balance as prototype of the Archimedes vacuum weight experiment and B-L dark photon search
Thermal noise-limited beam balance as prototype of the Archimedes vacuum weight experiment and B-L dark photon search Open
View article: Characterizing the Sardinia candidate site for the Einstein Telescope
Characterizing the Sardinia candidate site for the Einstein Telescope Open
Due to its unique geophysical features and to the low density population of the area, Sos Enattos is a promising candidate site to host the Einstein Telescope (ET), the third-generation Gravitational Wave Observatory. The geophysical chara…
View article: Design and implementation of a seismic Newtonian noise cancellation system for the Virgo gravitational-wave detector
Design and implementation of a seismic Newtonian noise cancellation system for the Virgo gravitational-wave detector Open
Terrestrial gravity perturbations caused by seismic fields produce the so-called Newtonian noise in gravitational-wave detectors, which is predicted to limit their sensitivity in the upcoming observing runs. In the past, this noise was see…
View article: The Archimedes Experiment, results on the thermal modulation system.
The Archimedes Experiment, results on the thermal modulation system. Open
The scientific objective of Archimedes is to weigh the vacuum, i.e. to investigate the role of the interaction of vacuum fluctuations with the force of gravity, using a high sensitivity balance. It will measure the small weight variations …
View article: Design and implementation of a seismic Newtonian-noise cancellation system for the Virgo gravitational-wave detector
Design and implementation of a seismic Newtonian-noise cancellation system for the Virgo gravitational-wave detector Open
Terrestrial gravity perturbations caused by seismic fields produce the so-called Newtonian noise in gravitational-wave detectors, which is predicted to limit their sensitivity in the upcoming observing runs. In the past, this noise was see…
View article: Wie viel wiegt das Vakuum?
Wie viel wiegt das Vakuum? Open
Zusammenfassung Das Vakuum ist nicht völlig leer, denn die Heisenbergsche Unschärferelation erzwingt Vakuumfluktuationen. Deren Existenz ist über Messungen der Casimir‐Kraft belegt. Folglich muss auch Energie in den Vakuumfluktuationen ste…
View article: Design and implementation of a seismic Newtonian-noise cancellation system for the Virgo gravitational-wave detector
Design and implementation of a seismic Newtonian-noise cancellation system for the Virgo gravitational-wave detector Open
Terrestrial gravity perturbations caused by seismic fields produce the so-called Newtonian noise in gravitational-wave detectors, which is predicted to limit their sensitivity in the upcoming observing runs. In the past, this noise was see…
View article: Array analysis of seismic noise at the Sos Enattos mine, the Italian candidate site for the Einstein Telescope
Array analysis of seismic noise at the Sos Enattos mine, the Italian candidate site for the Einstein Telescope Open
View article: Virgo detector characterization and data quality: tools
Virgo detector characterization and data quality: tools Open
Detector characterization and data quality studies—collectively referred to as DetChar activities in this article—are paramount to the scientific exploitation of the joint dataset collected by the LIGO-Virgo-KAGRA global network of ground-…
View article: Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector
Frequency-Dependent Squeezed Vacuum Source for the Advanced Virgo Gravitational-Wave Detector Open
In this Letter, we present the design and performance of the frequency-dependent squeezed vacuum source that will be used for the broadband quantum noise reduction of the Advanced Virgo Plus gravitational-wave detector in the upcoming obse…
View article: The Advanced Virgo+ status
The Advanced Virgo+ status Open
The gravitational wave detector Advanced Virgo+ is currently in the commissioning phase in view of the fourth Observing Run (O4). The major upgrades with respect to the Advanced Virgo configuration are the implementation of an additional r…
View article: Advanced Virgo Plus: Future Perspectives
Advanced Virgo Plus: Future Perspectives Open
While completing the commissioning phase to prepare the Virgo interferometer for the next joint Observation Run (O4), the Virgo collaboration is also finalizing the design of the next upgrades to the detector to be employed in the followin…
View article: The Virgo O3 run and the impact of the environment
The Virgo O3 run and the impact of the environment Open
Sources of geophysical noise (such as wind, sea waves and earthquakes) or of anthropogenic noise impact ground-based gravitational-wave interferometric detectors, causing transient sensitivity worsening and gaps in data taking. During the …
View article: Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>T</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math> superconducting metal bulk sample
Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a high- superconducting metal bulk sample Open
We provide a methodological approach to the estimate of the change of the quantum vacuum electromagnetic energy density in a high critical temperature superconducting metal bulk sample, when it undergoes the transition in temperature, from…
View article: Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a HTc superconducting metal bulk sample
Quantum zero point electromagnetic energy difference between the superconducting and the normal phase in a HTc superconducting metal bulk sample Open
We provide a novel methodological approach to the estimate of the change of the Quantum Vacuum electromagnetic energy density in a High critical Temperature superconducting metal bulk sample, when it undergoes the transition in temperature…
View article: Casimir energy for N superconducting cavities: a model for the YBCO (GdBCO) sample to be used in the Archimedes experiment
Casimir energy for N superconducting cavities: a model for the YBCO (GdBCO) sample to be used in the Archimedes experiment Open
In this paper we study the Casimir energy of a sample made by N cavities, with $$N\gg 1$$ , across the transition from the metallic to the superconducting phase of the constituting plates. After having characterised the energy for the…
View article: A lower limit for Newtonian-noise models of the Einstein Telescope
A lower limit for Newtonian-noise models of the Einstein Telescope Open
The Einstein Telescope (ET) is a proposed third-generation gravitational-wave (GW) underground observatory. It will have greatly increased sensitivity compared to current GW detectors, and it is designed to extend the observation band down…
View article: Virgo Detector Characterization and Data Quality during the O3 run
Virgo Detector Characterization and Data Quality during the O3 run Open
The Advanced Virgo detector has contributed with its data to the rapid growth of the number of detected gravitational-wave signals in the past few years, alongside the two LIGO instruments. First, during the last month of the Observation R…
View article: Study of correlations between seismic data and Virgo’s gravitational-wave detector data
Study of correlations between seismic data and Virgo’s gravitational-wave detector data Open
It is expected that noise produced by terrestrial gravity fluctuations will start to limit the sensitivity of the ground-based, gravitational-wave detector Virgo in coming observation runs. A system is under preparation at Virgo to cancel …
View article: A lower limit for Newtonian-noise models of the Einstein Telescope
A lower limit for Newtonian-noise models of the Einstein Telescope Open
The Einstein Telescope (ET) is a proposed third-generation gravitational-wave (GW) underground observatory. It will have greatly increased sensitivity compared to current GW detectors, and it is designed to extend the observation band down…
View article: Calibration of advanced Virgo and reconstruction of the detector strain h( t) during the observing run O3
Calibration of advanced Virgo and reconstruction of the detector strain h( t) during the observing run O3 Open
The three advanced Virgo and LIGO gravitational wave detectors participated to the third observing run (O3) between 1 April 2019 15:00 UTC and 27 March 2020 17:00 UTC, leading to several gravitational wave detections per month. This paper …
View article: Calibration of advanced Virgo and reconstruction of the detector strain <i>h</i>(<i>t</i>) during the observing run O3
Calibration of advanced Virgo and reconstruction of the detector strain <i>h</i>(<i>t</i>) during the observing run O3 Open
The three advanced Virgo and LIGO gravitational wave detectors participated to the third observing run (O3) between 1 April 2019 15:00 UTC and 27 March 2020 17:00 UTC, leading to several gravitational wave detections per month. This paper …
View article: Characterization of the seismic field at Virgo and improved estimates of Newtonian-noise suppression by recesses
Characterization of the seismic field at Virgo and improved estimates of Newtonian-noise suppression by recesses Open
Fluctuations of gravitational forces cause so-called Newtonian noise (NN) in gravitational-wave detectors which is expected to limit their low-frequency sensitivity in upcoming observing runs. Seismic NN is produced by seismic waves passin…
View article: Picoradiant tiltmeter and direct ground tilt measurements at the Sos Enattos site
Picoradiant tiltmeter and direct ground tilt measurements at the Sos Enattos site Open
View article: Characterization of the seismic field at Virgo and improved estimates of Newtonian-noise suppression by recesses
Characterization of the seismic field at Virgo and improved estimates of Newtonian-noise suppression by recesses Open
Fluctuations of gravitational forces cause so-called Newtonian noise (NN) in gravitational-wave (GW) detectors which is expected to limit their low-frequency sensitivity in upcoming observing runs. Seismic NN is produced by seismic waves p…
View article: Automated source of squeezed vacuum states driven by finite state machine based software
Automated source of squeezed vacuum states driven by finite state machine based software Open
In the last few decades, much effort has been made for the production of squeezed vacuum states in order to reduce quantum noise in the audio-frequency band. This technique has been implemented in all running gravitational-wave interferome…
View article: Seismic glitchness at Sos Enattos site: impact on intermediate black hole binaries detection efficiency
Seismic glitchness at Sos Enattos site: impact on intermediate black hole binaries detection efficiency Open
View article: Correction to: Seismic glitchness at Sos Enattos site: impact on intermediate black hole binaries detection efficiency
Correction to: Seismic glitchness at Sos Enattos site: impact on intermediate black hole binaries detection efficiency Open