Levi, Filippo

Geodesy and metrology with a transportable optical clock

Grotti, J., Koller, S., Vogt, S., Häfner, S., Sterr, U., Lisdat, C., Denker, H., Voigt, C., Timmen, L., Rolland, A., et al. (2018) · Nature Physics

Advanced Frequency and Time StandardsRelativity and Gravitational Theory

Cited by 495

Precision Atomic Spectroscopy for Improved Limits on Variation of the Fine Structure Constant and Local Position Invariance

Fortier, T. M., Ashby, N., Bergquist, J. C., Delaney, M. J., Diddams, S. A., Heavner, T. P., Hollberg, L., Itano, W. M., Jefferts, S. R., Kim, K., et al. (2007) · Physical Review Letters

Advanced Frequency and Time StandardsAtomic and Molecular Physics

Cited by 226

First accuracy evaluation of NIST-F2

Heavner, T. P., Donley, E. A., Levi, F., Costanzo, G., Parker, T. E., Shirley, J. H., Ashby, N., Barlow, S., & Jefferts, S. R. (2014) · Metrologia

Advanced Frequency and Time StandardsScientific Measurement and Uncertainty Evaluation

Cited by 205

High-accuracy coherent optical frequency transfer over a doubled 642-km fiber link

Calonico, D., Bertacco, E. K., Calosso, C. E., Clivati, C., Costanzo, G. A., Frittelli, M., Godone, A., Mura, A., Poli, N., Sutyrin, D. V., et al. (2014) · Applied Physics B

Advanced Frequency and Time StandardsAdvanced Photonic Communication Systems

Cited by 168

A VLBI experiment using a remote atomic clock via a coherent fibre link

Clivati, C., Ambrosini, R., Artz, T., Bertarini, A., Bortolotti, C., Frittelli, M., Levi, F., Mura, A., Maccaferri, G., Nanni, M., et al. (2017) · Scientific Reports

Advanced Frequency and Time StandardsGNSS positioning and interference

Cited by 123

Common-clock very long baseline interferometry using a coherent optical fiber link

Clivati, C., Aiello, R., Bianco, G., Bortolotti, C., De Natale, P., Di Sarno, V., Maddaloni, P., Maccaferri, G., Mura, A., Negusini, M., et al. (2020) · Optica

Advanced Frequency and Time StandardsRadio Astronomy Observations and Technology

Cited by 99

Intercontinental comparison of optical atomic clocks through very long baseline interferometry

Pizzocaro, M., Sekido, M., Takefuji, K., Ujihara, H., Hachisu, H., Nemitz, N., Tsutsumi, M., Kondo, T., Kawai, E., Ichikawa, R., et al. (2021) · Nature Physics

Advanced Frequency and Time StandardsNetwork Time Synchronization Technologies

Cited by 64

Absolute frequency measurement of the 1S0–3P0 transition of 171Yb with a link to international atomic time

Pizzocaro, M., Bregolin, F., Barbieri, P., Rauf, B., Levi, F., & Calonico, D. (2020) · Metrologia

Advanced Frequency and Time StandardsScientific Measurement and Uncertainty Evaluation

Cited by 63

Optical frequency transfer over submarine fiber links

Clivati, C., Tampellini, A., Mura, A., Levi, F., Marra, G., Galea, P., Xuereb, A., & Calonico, D. (2018) · Optica

Advanced Frequency and Time StandardsQuantum Information and Cryptography

Cited by 55

Doppler-stabilized fiber link with 6 dB noise improvement below the classical limit

Calosso, C. E., Bertacco, E. K., Calonico, D., Clivati, C., Costanzo, G. A., Frittelli, M., Levi, F., Micalizio, S., Mura, A., & Godone, A. (2015) · Optics Letters

Advanced Frequency and Time StandardsAdvanced Photonic Communication Systems

Cited by 23

Gravitational redshift at INRIM

Calonico, D., Cina, A., Bendea, I. H., Levi, F., Lorini, L., & Godone, A. (2007) · Metrologia

Advanced Frequency and Time StandardsScientific Measurement and Uncertainty Evaluation

Cited by 22

Spectral purity transfer with 5 × 10−17 instability at 1 s using a multibranch Er:fiber frequency comb

Barbieri, P., Clivati, C., Pizzocaro, M., Levi, F., & Calonico, D. (2019) · Metrologia

Advanced Frequency and Time StandardsAdvanced Fiber Laser Technologies

Cited by 18

International timescales with optical clocks (ITOC)

Margolis, H. S., Godun, R. M., Gill, P., Johnson, L. A. M., Shemar, S. L., Whibberley, P. B., Calonico, D., Levi, F., Lorini, L., Pizzocaro, M., et al. (2013) · 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC)

Advanced Frequency and Time StandardsScientific Measurement and Uncertainty Evaluation

Cited by 15