Publications

2024

Laser-frequency stabilization using light shift in compact atomic clocks

C.E. Calosso, M. Gozzelino, F. Levi, and S. Micalizio, Phys. Rev. Appl. 22(3), 034033 (2024).

Seismic monitoring using the telecom fiber network

S. Donadello, C. Clivati, A. Govoni, L. Margheriti, M. Vassallo, D. Brenda, M. Hovsepyan, E.K. Bertacco, R. Concas, F. Levi, A. Mura, A. Herrero, F. Carpentieri, and D. Calonico, Commun. Earth Environ. 5, 178 (2024).

Analysis of spin-squeezing generation in cavity-coupled atomic ensembles with continuous measurements

A. Caprotti, M. Barbiero, M. G. Tarallo, M. G. Genoni, G. Bertaina, Quantum Sci. Technol. 9 035032 (2024)

Phase Noise in Real-World Twin-Field Quantum Key Distribution

G. Bertaina, C. Clivati, S. Donadello, C. Liorni, A. Meda, S. Virzì, M. Gramegna, M. Genovese, F. Levi, D. Calonico, M. Dispenza, and I.P. Degiovanni,  Adv. Quantum Tech., 2400032 (2024).

Spectrum of density, spin, and pairing fluctuations of an attractive two-dimensional Fermi gas

C. Apostoli, P. Kelly, A. Lopez, K. Dauer, G. Bertaina, D. E. Galli, E. Vitali, Phys. Rev. A 110, 033306 (2024)

Quantum Monte Carlo and perturbative study of two-dimensional Bose-Fermi mixtures

 J. D'Alberto, L. Cardarelli, D. E. Galli, G. Bertaina, P. Pieri, Phys. Rev. A 109, 053302 (2024)

Year-long optical time scale with sub-nanosecond capabilities 

V. Formichella, G. Signorile, T. T. Thai, L. Galleani, M. Pizzocaro, I. Goti, S. Condio, C. Clivati, M. Risaro, F. Levi, D. Calonico, I. Sesia, Optica 11 (4), 523-530  (2024)



2023

Erbium-Doped LiYF_4 as a Potential Solid-State Frequency Reference: Eligibility and Spectroscopic Assessment

E. Cerrato, C. Gionco,  G. R. Martella, C. Clivati, R. Gaudino,  D. Calonico,  Crystal, 13, 1476 (2023)

A cryogenic sapphire resonator oscillator with mid-term fractional frequency stability 

C. Fluhr, B. Dubois, C. E. Calosso, F. Vernotte, E. Rubiola, V. Giordano; Appl. Phys. Lett. 24 July 2023; 123 (4): 044107

Embedded Digital Phase Noise Analyzer for Optical Frequency Metrology

S. Donadello, E.K. Bertacco, D. Calonico, and C. Clivati, IEEE Transactions on Instrumentation and Measurement 72, pp. 1-12 (2023).

Status and Perspectives of INRIM Sr Cavity-Enhanced Optical Clock

M. Barbiero, G. Bertaina, D. Calonico, F. Levi, J.P. Salvatierra, and M.G. Tarallo, in 2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) (2023).

Absolute frequency measurement of a Yb optical clock at the limit of the Cs fountain

I. Goti, S. Condio, C. Clivati, M. Risaro, M. Gozzelino, G. A. Costanzo, F. Levi, D. Calonico, M. Pizzocaro, Metrologia 60, 035002 (2023).

Quantum Monte Carlo Study of the Role of p-Wave Interactions in Ultracold Repulsive Fermi Gases

G. Bertaina, M. G. Tarallo, and S. Pilati, Phys. Rev. A 107, 053305 (2023).

Broadband serrodyne phase modulation for optical frequency standards and spectral purity transfer

M. Barbiero, J. P. Salvatierra, M. Risaro, C. Clivati, D. Calonico, F. Levi and M. G. Tarallo, Optics Letters  48, 7, 1958-1961 (2023).

Toward Precision Fermi-Liquid Theory in Two Dimensions

S. R. Beane, G. Bertaina, R. C. Farrell, and W. R. Marshall, Phys. Rev. A 107, 043314 (2023).

Realization of a pulsed optically pumped Rb clock with a frequency stability below 10-15

M. Gozzelino, S. Micalizio, C.E. Calosso, J. Belfi,  A. Sapia, M. Gioia and F. Levi. Scientific Reports, 13(1), 12974 (2023)


2022

Improving the Resolution of Comb-Based Frequency Measurements Using a Track-And-Hold Amplifier

Matias Risaro, Paolo Savio, Marco Pizzocaro, Filippo Levi, Davide Calonico, Cecilia Clivati,  Physical Review Applied, 18, 6, 064010 (2022)

Optically loaded Strontium lattice clock with a single multi-wavelength reference cavity
M Barbiero, D Calonico, F Levi, MG Tarallo, IEEE Transactions on Instrumentation and Measurement, vol. 71, pp. 1-9, 2022, Art no. 1501509  (2022)

Coherent phase transfer for real-world twin-field quantum key distribution.

C. Clivati, A. Meda, S. Donadello, S. Virzì, M. Genovese, F. Levi, A. Mura, M. Pittaluga, Z. Yuan, A. J. Shields, M. Lucamarini, I. P. Degiovanni, D. Calonico, Nature Commun.  13, 157 (2022)

Coherent Optical-Fiber Link Across Italy and France

C. Clivati, M. Pizzocaro, E.K. Bertacco, S. Condio, G.A. Costanzo, S. Donadello, I. Goti, M. Gozzelino, F. Levi, A. Mura, M. Risaro, D. Calonico, M. Tønnes, B. Pointard, M. Mazouth-Laurol, R. Le Targat, M. Abgrall, M. Lours, H. Le Goff, L. Lorini, P.-E. Pottie, E. Cantin, O. Lopez, C. Chardonnet, A. Amy-Klein, Phys. Rev. Applied 18, 054009 (2022)


2021

INRIM Sr Optical Clock: An Optically Loaded Apparatus for High-Stability Metrology

Matteo Barbiero, Marco G. Tarallo, Federica Rullo, Matias Risaro, Cecilia Clivati, Davide Calonico, Filippo Levi, 2021 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 2021, pp. 1-3, doi: 10.1109/EFTF/IFCS52194.2021.9604341.

Evolution of Static and Dynamical Density Correlations of One-Dimensional Soft-Core Bosons from the Tonks-Girardeau Limit to a Clustering Fluid

M. Teruzzi, C. Apostoli, D. Pini, D. E. Galli, and G. Bertaina, Phys. Rev. A 104, 053301 (2021).

 A pulsed-laser Rb atomic frequency standard for GNSS applications

S. Micalizio, F. Levi, C.E. Calosso, M. Gozzelino, and A. Godone, GPS Solutions 25, 94  (2021)

Quantum Monte Carlo Simulations of Two-Dimensional Repulsive Fermi Gases with Population Imbalance

S. Pilati, G. Orso, and G. Bertaina, Phys. Rev. A 103, 063314 (2021)

SI-traceable frequency dissemination at 1572.06 nm in a stabilized fiber network with ring topology.

D. Husmann, L-G. Bernier, M. Bertrand, D. Calonico, K. Chaloulos, G. Clausen, C. Clivati, J. Faist, E. Heiri, U. Hollenstein, A. Johnson, F. Mauchle, Z. Meir, F. Merkt, A. Mura, G. Scalari, S. Scheidegger, H. Schmutz, M. Sinhal, S. Willitsch,  J. Morel , Opt. Expr.  29, 24592 (2021)


2020

Loaded microwave cavity for compact vapor-cell clocks

M. Gozzelino, S. Micalizio, C.E. Calosso, A. Godone, H. Lin, and F. Levi, IEEE Trans.  Ultrason. Ferroelecr. Freq. Control 68, 872-879 (2020)

Kr-based buffer gas for Rb vapor-cell clocks

M. Gozzelino, S. Micalizio, C.E. Calosso, A. Godone, and F. Levi, IEEE Trans.  Ultrason. Ferroelecr. Freq. Control 68, 1442-1447 (2020)

Representing Molecular Ground and Excited Vibrational Eigenstates with Nuclear Densities Obtained from Semiclassical Initial Value Representation Molecular Dynamics

C. Aieta, G. Bertaina, M. Micciarelli, and M. Ceotto, J. Chem. Phys. 153, 214117 (2020)

Dynamical Structure Factor of a Fermionic Supersolid on an Optical Lattice

E. Vitali, P. Kelly, A. Lopez, G. Bertaina, and D. E. Galli. Phys. Rev. A 102, 053324 (2020)

Emergence of an Ising critical regime in the clustering of one-dimensional soft matter revealed through string variables

F. Mambretti, S. Molinelli, D. Pini, G. Bertaina, and D. E. Galli. Phys. Rev. E 102, 042134 (2020)

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., Namba, K., Okamoto, Y., Takahashi, R., Komuro, J., Clivati, C., Bregolin, F., Barbieri, P., Mura, A., Cantoni, E., Cerretto, G., Levi, F., Maccaferri, G., Roma, M., Bortolotti, C., Negusini, M., Ricci, R., Zacchiroli, G., Roda, J., Leute, J., Petit, G., Perini, F., Calonico, D. and Ido, T. Nature Physics (2020)

Tunable UV spectrometer for Doppler broadening thermometry of mercury

Cecilia Clivati, Stefania Gravina, Antonio Castrillo, Giovanni A. Costanzo, Filippo Levi, and Livio Gianfrani. Opt. Lett. 45, 3693-3696 (2020)  

Anharmonic quantum nuclear densities from full dimensional vibrational eigenfunctions with application to protonated glycine

C. Aieta, M. Micciarelli, G. Bertaina, and M. Ceotto. Nat Commun 11, 4348 (2020)

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

Cecilia Clivati, Roberto Aiello, Giuseppe Bianco, Claudio Bortolotti, Paolo De Natale, Valentina Di Sarno, Pasquale Maddaloni, Giuseppe Maccaferri, Alberto Mura, Monia Negusini, Filippo Levi, Federico Perini, Roberto Ricci, Mauro Roma, Luigi Santamaria Amato, Mario Siciliani de Cumis, Matteo Stagni, Alberto Tuozzi, and Davide Calonico .  Optica 8, 1031-1037 (2020)

Direct comparisons of European primary and secondary frequency standards via satellite techniques,

F Riedel, A Al-Masoudi, E Benkler, S Dörscher, V Gerginov, C Grebing, S Häfner, N Huntemann, B Lipphardt, C Lisdat, E Peik, D Piester, C Sanner, C Tamm, S Weyers, H Denker, L Timmen, C Voigt, D Calonico, G Cerretto, G A Costanzo, F Levi, I Sesia, J Achkar, J Guéna, M Abgrall, D Rovera, B Chupin, C Shi, S Bilicki, E Bookjans, J Lodewyck, R Le Targat, P Delva, S Bize, F N Baynes, C F A Baynham, W Bowden, P Gill, R M Godun I R Hill, R Hobson, J M Jones, S A King, P B R Nisbet-Jones, A Rolland, S L Shemar, P B Whibberley and H S Margolis. Metrologia 57 , 8045005 (2020)

Absolute frequency measurement of the S-1(0)-P-3(0) transition of Yb-171 with a link to international atomic time,

M. Pizzocaro, F. Bregolin, P. Barbieri, B. Rauf, F. Levi and D. Calonico. Metrologia 57 035007 (2020) 

Robust optical frequency dissemination with a dual-polarization coherent receiver,

C. Clivati, P. Savio, S. Abrate, V. Curri, R. Gaudino, M. Pizzocaro and D. Calonico. Opt. Express 28 (6), 8494-8511 (2020)

Sideband-Enhanced Cold Atomic Source for Optical Clocks,

M. Barbiero, M. G. Tarallo, D. Calonico, F. Levi, G. Lamporesi and G. Ferrari, Phys. Rev. Applied 13 (1), 014013 (2020)

Intensity detection noise in pulsed vapor-cell frequency standard

C. E. Calosso, M. Gozzelino, A. Godone, H. Lin, F. Levi and S. Micalizio,  IEEE Trans. Ultrason. Ferroelectr. Freq. Control  67(5), 1074-1079 (2020)


2019

Phase Noise and Frequency Stability of the Red-Pitaya Internal PLL, 

A. C. Cárdenas Olaya, C. Calosso, J.-M. Friedt, S. Micalizio and E. Rubiola, IEEE Trans. Ultrason. Ferroelectr. Freq. Control 66 (2), 412-416 (2019)

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

P. Barbieri, C. Clivati, M. Pizzocaro, F. Levi and D. Calonico, Metrologia 56 (4), 045008 (2019)

Raman-Ramsey resonances in atomic vapor cells: Rabi pulling and optical-density effects,

S. Micalizio and A. Godone, Phys. Rev. A 99 (4), 043425 (2019)


2018

Ultrastable laser interferometry for earthquake detection with terrestrial and submarine cables,

G. Marra, C. Clivati, R. Luckett, A. Tampellini, J Kronjäger, L. Wright, A. Mura, F. Levi, S. Robinson, A. Xuereb, B. Baptie and D. Calonico, Science 361 (6401) , 486-490 (2018)

Optical frequency transfer over submarine fiber links,

C. Clivati, A. Tampellini, A. Mura, F. Levi, G. Marra, P. Galea, A. Xuereb and D. Calonico, Optica 5 (8) , 893-901 (2018)

Reducing Cavity-Pulling Shift in Ramsey-Operated Compact Clocks,

M. Gozzelino, S. Micalizio, F. Levi, A. Godone and C. Calosso, IEEE Trans. Ultrason. Ferroelectr. Freq. Control 65 (7), 1294-1301 (2018)

Geodesy and metrology with a transportable optical clock, J. Grotti, S. Koller, S. Vogt, S. Häfner, U. Sterr et al.,

Nat. Phys. 14 (5), 437-441 (2018)

Phase noise cancellation in polarisation-maintaining fibre links,

B. Rauf, M. C. V. Lòpez, P. Thoumany, M. Pizzocaro and D. Calonico, Rev. Sci. Inst. 89 (3) , 033103 (2018)


2017

Absolute frequency measurement of the 1S03P0 transition of 171Yb,

M. Pizzocaro, P. Thoumany, B. Rauf, F. Bregolin, G. Milani et al., Metrologia 54 (1) , 102 (2017)

Effect of a timebase mismatch in two-way optical frequency transfer,

A. Tampellini, C. Clivati, F. Levi, A. Mura and D. Calonico, Metrologia 54 (6) , 805 (2017)

Optical lattice clocks towards the redefinition of the second,

F. Bregolin, G. Milani, M. Pizzocaro, B. Rauf, P. Thoumany et al., J. Phys. Conf. Ser. 841 (1) , 012015 (2017)

Noise characterization of analog to digital converters for amplitude and phase noise measurements,

A. C. Cárdenas-Olaya, E. Rubiola, J.-M. Friedt, P.-Y. Bourgeois, M. Ortolano et al., Rev. Sci. Inst. 88 (6) , 065108 (2017)

Generalized electronics for compact atomic clocks,

C. E. Calosso, M. Gozzelino, E. Bertacco, S. Micalizio, B. François and P. Yun, in 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) , 322-323 (2017)

A strontium optical lattice clock apparatus for precise frequency metrology and beyond,

M. G. Tarallo, D. Calonico, F. Levi, M. Barbiero, G. Lamporesi and G. Ferrari, in 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) , 748-750 (2017)

Multiple wavelength stabilization on a single optical cavity using the offset sideband locking technique,

G. Milani, B. Rauf, P. Barbieri, F. Bregolin, M. Pizzocaro et al., Opt. Lett. 42 (10) , 1970-1973 (2017)

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

C. Clivati, R. Ambrosini, T. Artz, A. Bertarini, C. Bortolotti et al., Sci. Rep. 7 , 40992- (2017)

High-Performance Coherent Population Trapping Clock with Polarization Modulation,

P. Yun, F. Tricot, C. E. Calosso, S. Micalizio, B. François et al., Phys. Rev. Applied 7 , 014018 (2017)


2016

Synthetic Dimensions and Spin-Orbit Coupling with an Optical Clock Transition,

L. F. Livi, G. Cappellini, M. Diem, L. Franchi, C. Clivati et al., Phys. Rev. Lett. 117, 220401 (2016)

Measuring absolute frequencies beyond the GPS limit via long-haul optical frequency dissemination,

C. Clivati, G. Cappellini, L. F. Livi, F. Poggiali, M. S. de Cumis et al., Opt. Express 24 (11) , 11865-11875 (2016)

Avoiding Aliasing in Allan Variance: An Application to Fiber Link Data Analysis,

C. E. Calosso, C. Clivati and S. Micalizio, IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 63 (4) , 646-655 (2016)


2015

Simple-design ultra-low phase noise microwave frequency synthesizers for high-performing Cs and Rb vapor-cell atomic clocks,

B. François, C. E. Calosso, M. A. Hafiz, S. Micalizio and R. Boudot, Rev. Sci. Inst. 86 (9) , 094707 (2015)

A coherent fiber link for very long baseline interferometry,

C. Clivati, G. A. Costanzo, M. Frittelli, F. Levi, A. Mura et al., IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 62 (11) , 1907-1912 (2015)

In-field Raman amplification on coherent optical fiber links for frequency metrology,

C. Clivati, G. Bolognini, D. Calonico, S. Faralli, A. Mura and F. Levi, Opt. Express 23 (8) , 10604-10615 (2015)

High-performing vapor-cell frequency standards,

A. Godone, F. Levi, C. E. Calosso and S. Micalizio, Nuovo Cimento Rivista Serie 38 , 133-171 (2015)

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

C. E. Calosso, E. K. Bertacco, D. Calonico, C. Clivati, G. A. Costanzo et al., Opt. Lett. 40 (2) , 131-134 (2015)


2014

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

D. Calonico, E. Bertacco, C. Calosso, C. Clivati, G. Costanzo et al., Appl. Phys. B 117 (3) , 979-986 (2014)

Accuracy evaluation of ITCsF2: a nitrogen cooled caesium fountain,

F. Levi, D. Calonico, C. E. Calosso, A. Godone, S. Micalizio and G. A. Costanzo, Metrologia 51 (3) , 270 (2014)

Yellow laser performance of Dy3+ in co-doped Dy, Tb:LiLuF4,

G. Bolognesi, D. Parisi, D. Calonico, G. A. Costanzo, F. Levi et al., Opt. Lett. 39 (23) , 6628-6631 (2014)

Efficient frequency doubling at 399 nm,

M. Pizzocaro, D. Calonico, P. C. Pastor, J. Catani, G. A. Costanzo et al., Appl. Opt. 53 (16) , 3388-3392 (2014)

Frequency transfer via a two-way optical phase comparison on a multiplexed fiber network,

C. E. Calosso, E. Bertacco, D. Calonico, C. Clivati, G. A. Costanzo et al., Opt. Lett. 39 (5) , 1177-1180 (2014)

High-Accuracy Measurement of the Blackbody Radiation Frequency Shift of the Ground-State Hyperfine Transition in 133Cs,

S. R. Jefferts, T. P. Heavner, T. E. Parker, J. H. Shirley, E. A. Donley et al., Phys. Rev. Lett. 112 , 050801 (2014)


2013

Distributed Raman Optical Amplification in Phase Coherent Transfer of Optical Frequencies,

C. Clivati, G. Bolognini, D. Calonico, S. Faralli, F. Levi et al., IEEE Photonic Technol. Lett. 25 (17) , 1711-1714 (2013)

Ramsey-fringe shape in an alkali-metal vapor cell with buffer gas,

S. Micalizio, C. E. Calosso, F. Levi and A. Godone, Phys. Rev. A 88 , 033401 (2013)

Large-area fiber-optic gyroscope on a multiplexed fiber network,

C. Clivati, D. Calonico, G. A. Costanzo, A. Mura, M. Pizzocaro and F. Levi, Opt. Lett. 38 (7) , 1092-1094 (2013)

Active disturbance rejection control of temperature for ultrastable optical cavities,

M. Pizzocaro, D. Calonico, C. Calosso, C. Clivati, G. A. Costanzo et al., IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 60 (2) , 273-280 (2013)


2012

Metrological characterization of the pulsed Rb clock with optical detection,

S. Micalizio, C. E. Calosso, A. Godone and F. Levi, Metrologia 49 (4) , 425 (2012)

Enhanced temperature sensitivity in vapor-cell frequency standards,

C. E. Calosso, A. Godone, F. Levi and S. Micalizio, IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 59 (12) , 2646-2654 (2012)

Pulsed optically pumped rubidium clock with high frequency-stability performance,

S. Micalizio, A. Godone, C. Calosso, F. Levi, C. Affolderbach and F. Gruet, IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 59 (3) , 457-462 (2012)

Realization of an ultrastable 578-nm laser for an Yb lattice clock,

M. Pizzocaro, G. A. Costanzo, A. Godone, F. Levi, A. Mura et al., IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 59 (3) , 426-431 (2012)


2011

Microwave cavities for vapor cell frequency standards,

A. Godone, S. Micalizio, F. Levi and C. Calosso, Rev. Sci. Inst. 82 (7) , 074703 (2011)

Planar-waveguide external cavity laser stabilization for an optical link with e-19 frequency stability,

C. Clivati, A. Mura, D. Calonico, F. Levi, G. Costanzo et al., IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 58 (12) , 2582-2587 (2011)


2010

Medium-long term frequency stability of pulsed vapor cell clocks,

S. Micalizio, A. Godone, F. Levi and C. Calosso, IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 57 (7) , 1524-1534 (2010)

Cryogenic fountain development at NIST and INRIM: preliminary characterization,

F. Levi, C. Calosso, D. Calonico, L. Lorini, E. Bertacco et al., IEEE Trans. Ultrason., Ferroelect., Freq. Cont. 57 (3) , 600-605 (2010)