
Publications / Theses / PTB publications
2021
S. Dörscher, N. Huntemann, R. Schwarz, R. Lange, E. Benkler, B. Lipphardt, U. Sterr, E. Peik, C. LisdatOptical frequency ratio of a 171Yb+ single-ion clock and a 87Sr lattice clock
Metrologia 58, 015005 (2021)
C. Lisdat and C. KlemptQuantum engineering for optical clocks
Nature 588, 397 (2021)
2020
M. Schulte, C. Lisdat, P.O. Schmidt, U. Sterr, K. HammererProspects and challenges for squeezing-enhanced optical atomic clocks
Nature Comms. 11, 5955 (2020)
S. Dörscher, A. Al.-Masoudi, M. Bober, R. Schwarz, R. Hobson, U. Sterr, C. LisdatDynamical decoupling of laser phase noise in compound atomic clocks
Comm. Physics 3, 185 (2020)
B. M. Roberts, P. Delva, A. Al-Masoudi, A. Amy-Klein, C. Bærentsen, C. F. A. Baynham, E. Benkler, S. Bilicki, S. Bize, W. Bowden, J. Calvert, V. Cambier, E. Cantin, E. A. Curtis, S. Dörscher, M. Favier, F. Frank, P. Gill, R. M. Godun, G. Grosche, C. Guo, A. Hees, I. R. Hill, R. Hobson, N. Huntemann, J. Kronjäger, S. Koke, A. Kuhl, R. Lange, T. Legero, B. Lipphardt, C. Lisdat, J. Lodewyck, O. Lopez, H. S. Margolis, H. Alvarez-Martinez, F. Meynadier, F. Ozimek, E. Peik, P.-E. Pottie, N. Quintin, C. Sanner, L. De Sarlo, M. Schioppo, R. Schwarz, A. Silva, U. Sterr, C. Tamm, R. Le Targat, P. Tuckey, G. Vallet, T. Waterholter, D. Xu, P. WolfSearch for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks
New J. Phys. 22, 093010 (2020)
R. Schwarz, S. Dörscher, A. Al-Masoudi, E. Benkler, T. Legero, U. Sterr, S. Weyers, J. Rahm, B. Lipphardt, C. LisdatLong term measurement of the 87Sr clock frequency at the limit of primary Cs clocks
Phys. Rev. Research 2, 033242 (2020)
Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks
New J. Phys. accepted manuscript (2020)
R. Schwarz, S. Dörscher, A. Al-Masoudi, E. Benkler, T. Legero, U. Sterr, S. Weyers, J. Rahm, B. Lipphardt, C. LisdatLong term measurement of the 87Sr clock frequency at the limit of primary Cs clocks
Phys. Rev. Research 27, 033242 (2020)
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, G.D. Rovera, B. Chupin, C. Shi, S. Bilicki, E. Bookjans, J. Lodewyck, R. Le Targat, P. Delva, S. Bize, F.N. Baynes, C. Baynham, W. Bowden, P. Gill, R.M. Godun, I.R. Hill, R. Hobson, J.M. Jones, S.A. King, P. Nisbet-Jones, A. Rolland, S.L. Shemar, P.B. Whibberley, H.S. MargolisDirect comparisons of European primary and secondary frequency standards via satellite techniques
Metrologia 57, 045005 (2020)
S. Häfner, S. Herbers, S. Vogt, Ch. Lisdat, U. SterrA transportable interrogation laser system with an instability of mod σy = 3×10-16
Opt. Express 28, 16407 (2020)
2019
S. Herbers, S. Dörscher, E. Benkler, Ch. LisdatPhase noise of frequency doublers in optical clock lasers
Opt. Express 27, 23262 (2019)
R. Schwarz, S. Dörscher, A. Al-Masoudi, S. Vogt, Ye Li, Ch. LisdatA compact and robust cooling laser system for an optical strontium lattice clock
Rev. Sci. Instr. 90, 023109 (2019)
2018
S. Origlia, M. S. Pramod, S. Schiller, Y. Singh, K. Bongs, R. Schwarz, A. Al-Masoudi, S. Dörscher, S. Herbers, S. Häfner, U. Sterr, Ch. LisdatTowards an optical clock for space: Compact, high-performance optical lattice clock based on bosonic atoms [pdf]1)
Phys. Rev. A 98, 053443 (2018)
S. Dörscher, R. Schwarz, A. Al-Masoudi, S. Falke, U. Sterr, Ch. LisdatLattice-induced photon scattering in an optical lattice clock
Phys. Rev. A 97, 063419 (2018)
Ch. Lisdat, H. SchnatzUhren als Höhenmesser
Physik in unserer Zeit 49, 110 (2018)
T. Mehlstäubler, G. Grosche, Ch. Lisdat, P. Schmidt, H. DenkerAtomic Clocks for Geodesy
Rep. Prog. Phys. 81, 064401 (2018)
J. Grotti, S. Koller, S. Vogt, S. Häfner, U. Sterr, C. Lisdat, H. Denker, C. Voigt, L. Timmen, A. Rolland, F. N. Baynes, H. S. Margolis, M. Zampaolo, P. Thoumany, M. Pizzocaro, B. Rauf, F. Bregolin, A. Tampellini, P. Barbieri, M. Zucco, G. A. Costanzo, C. Clivati, F. Levi, D. CalonicoGeodesy and metrology with a transportable optical clock
Nature Physics 14, 437 (2018)
2017
P. Delva, J. Lodewyck, S. Bilicki, E. Bookjans, G. Vallet, R. Le Targat, P.-E. Pottie, C. Guerlin, F. Meynadier, C. Le Poncin-Lafitte, O. Lopez, A. Amy-Klein, W.-K. Lee, N. Quintin, C. Lisdat, A. Al-Masoudi, S. Dörscher, C. Grebing, G. Grosche, A. Kuhl, S. Raupach, U. Sterr, I. R. Hill, R. Hobson, W. Bowden, J. Kronjäger, G. Marra, A. Rolland, F. N. Baynes, H. S. Margolis, P. GillTest of special relativity using a fiber network of optical clocks
Phys. Rev. Lett. 118, 221102 (2017)
I. Kruse, K. Lange, J. Peise, B. Lücke, L. Pezzé, J. Arlt, W. Ertmer, C. Lisdat, L. Santos, A. Smerzi, C. Klempt0.75 atoms improve the clock signal of 10,000 atoms
Proc. of SPIE 10119,101190D-101190D-10 (2017)
S. B. Koller, J. Grotti, St. Vogt, A. Al-Masoudi, S. Dörscher, S. Häfner, U. Sterr, Ch. LisdatTransportable optical lattice clock with 7×10−17 uncertainty
Phys. Rev. Lett. 118, 073601 (2017)
2016
I. Kruse, K. Lange, J. Peise, B. Lücke, L. Pezzé, J. Arlt, W. Ertmer, C. Lisdat, L. Santos, A. Smerzi, C. KlemptImprovement of an atomic clock using squeezed vacuum
Phys. Rev. Lett. 117, 143004 (2016)
C. Lisdat, G. Grosche, N. Quintin, C. Shi, S. M. F. Raupach, C. Grebing, D. Nicolodi, F. Stefani, A. Al-Masoudi, S. Dörscher, S. Häfner, J. L. Robyr, N. Chiodo, S. Bilicki, E. Bookjans, A. Koczwara, S. Koke, A. Kuhl, F. Wiotte, F. Meynadier, E. Camisard, M. Abgrall, M. Lours, T. Legero, H. Schnatz, U. Sterr, H. Denker, C. Chardonnet, Y. Le Coq, G. Santarelli, A. Amy-Klein, R. Le Targat, J. Lodewyck, O. Lopez, P.-E. PottieA clock network for geodesy and fundamental science
Nature Comms. 7, 12443 (2016)
C. Grebing, A. Al-Masoudi, S. Dörscher, S. Häfner, V. Gerginov, S. Weyers, B. Lipphardt, F. Riehle, U. Sterr, C. LisdatRealization of a time-scale with an optical clock
Optica 3, 563 – 569 (2016)
D. Świerad, S. Häfner, S. Vogt, B. Venon, D. Holleville, S. Bize, A. Kulosa, S. Bode, Y. Singh, K. Bongs, E. M. Rasel, J. Lodewyck, R. Le Targat, C. Lisdat, Uwe SterrUltra-stable clock laser system development towards space applications
Scientific Reports 6, 33973 (2016)
S. Vogt, S. Häfner, J. Grotti, S. Koller, A. Al-Masoudi, U. Sterr, C. LisdatA transportable optical lattice clock
Journal of Physics: Conference Series 723, 012020 (2016)
D. Matei, T. Legero, C. Grebing, S. Häfner, C. Lisdat, R. Weyrich, W. Zhang, L. Sonderhouse, J. M. Robinson, F. Riehle, J, Ye, U. SterrA second generation of low thermal noise cryogenic silicon resonators
Journal of Physics: Conference Series 723, 012031 (2016)
S. Origlia, S. Schiller, M.S. Pramod, L. Smith, Y. Singh, W. He, S. Viswam, D. Świerad, J. Hughes, K. Bongs, U. Sterr, C. Lisdat, S. Vogt, S. Bize, J. Lodewyck, R. Le Targat, D. Holleville, B. Venon, P. Gill, G. Barwood, I.R. Hill, Y. Ovchinnikov, A. Kulosa, W. Ertmer, E.-M. Rasel, J. Stuhler, W. KaendersDevelopment of a strontium optical lattice clock for the SOC mission on the ISS
Proc. of SPIE 9900, 990003-1 (2016)
2015
A. Al-Masoudi, S. Dörscher, S. Häfner, U. Sterr, C. LisdatNoise and instability of an optical lattice clock
Phys. Rev. A 92, 063814 (2015)
E. Benkler, Ch. Lisdat, U. SterrOn the relation between uncertainties of weighted frequency averages and the various types of Allan deviations
Metrologia 52, 565 (2015)
K. Bongs, Y. Singh, L. Smith, W. He, O. Kock, D. Swierad, J. Hughes, S. Schiller, S. Alighanbari, S. Origlia, S. Vogt, U. Sterr, Ch. Lisdat, R. Le Targat, J. Lodewyck, D. Holleville, B. Venon, S. BizeDevelopment of a strontium optical lattice clock for the SOC mission on the ISS
C. R. Physique 16, 553 – 564 (2015)
S. Häfner, S. Falke, C. Grebing, S. Vogt, T. Legero, M. Merimaa, C. Lisdat, Uwe Sterr
8×10-17 fractional laser frequency instability with a long room-temperature cavity
Opt. Lett. 40, 2112 – 2115 (2015)
2014
N. Poli, M. Schioppo, S. Vogt, St. Falke, U. Sterr, Ch. Lisdat, & G. M. Tino
A transportable strontium optical lattice clock
Appl. Phys. B 117, 1107 – 1116 (2014)
C. Hagemann, C. Grebing, C. Lisdat, S. Falke, T. Legero, U. Sterr, F. Riehle, M. J. Martin, J. Ye Ultra-stable laser with average fractional frequency drift rate below 5×10-19 /s
Opt. Lett. 39, 5102 – 5105 (2014)
H. Hachisu, M. Fujieda, S. Nagano, T. Gotoh, A. Nogami, T. Ido, St. Falke, N. Huntemann, C. Grebing, B. Lipphardt, Ch. Lisdat, D. PiesterDirect comparison of optical lattice clocks with an intercontinental baseline of 9 000 km
Opt. Lett. 39, 4072 – 4075 (2014)
S. Falke, N. Lemke, C. Grebing, B. Lipphardt, S. Weyers, V. Gerginov, N. Huntemann, C. Hagemann, A. Al-Masoudi, S. Häfner, S. Vogt, U. Sterr, & C. Lisdat
A strontium lattice clock with 3×10-17 inaccuracy and its frequency
New J. Phys. 16, 073023 (2014)
2013
C. Hagemann, C. Grebing, T. Kessler, S. Falke, N. Lemke, C. Lisdat, H. Schnatz, F. Riehle, & U. SterrProviding 10-16 short-term stability of a 1.5 µm laser to optical clocks
IEEE Trans. Instrum. Meas. 62, 1556 – 1562 (2013)
2012
T. Middelmann, S. Falke, C. Lisdat, & U. SterrHigh Accuracy Correction of Blackbody Radiation Shift in an Optical Lattice Clock
Phys. Rev. Lett. 109, 263004 (2012)
M. Schioppo, N. Poli, M. Prevedelli, S. Falke, C. Lisdat, U. Sterr, & G. M. TinoA compact and efficient strontium oven for laser-cooling experiments
Rev. Sci. Instrum. 83, 103101 (2012)
T. Middelmann, S. Falke, C. Lisdat, & U. SterrLong range transport of ultra cold atoms in a far-detuned one-dimensional optical lattice
New J. Phys. 14, 073020 (2012)
S. Falke, M. Misera, U. Sterr, & C. LisdatDelivering pulsed and phase stable light to atoms of an optical clock
Appl. Phys. B 107, 301 – 311 (2012)
S. Schiller, A. Görlitz, A. Nevsky, S. Alighanbari, S. Vasilyev, C. Abou-Jaoudeh, G. Mura, T. Franzen, U. Sterr, S. Falke, C. Lisdat, E. Rasel, A. Kulosa, S. Bize, J. Lodewyck, G. M. Tino, N. Poli, M. Schioppo, K. Bongs, Y. Singh, P. Gill, G. Barwood, Y. Ovchinnikov, J. Stuhler, W. Kaenders, C. Braxmaier, R. Holzwarth, A. Donati, S. Lecomte, D. Calonico, & F. Levi The Space Optical Clocks Project: Development of high-performance transportable and breadboard optical clocks and advanced subsystems
arXiv:1206.3765 (2012)
2011
S. Falke, H. Schnatz, J. S. R. Vellore Winfred, T. Middelmann, S. Vogt, S. Weyers, B. Lipphardt, G. Grosche, F. Riehle, U. Sterr, & C. LisdatThe 87Sr optical frequency standard at PTB
Metrologia 48, 399 – 407 (2011)
S. Vogt, C. Lisdat, T. Legero, U. Sterr, I. Ernsting, A. Nevsky, & S. SchillerDemonstration of a Transportable 1 Hz-Linewidth Laser
Appl. Phys. B 104, 741 – 745 (2011)
T. Middelmann, C. Lisdat, S. Falke, J. S. R. Vellore Winfred, F. Riehle, & U. SterrTackling the blackbody shift in a strontium optical lattice clock
IEEE Trans. Instrum. Meas. 60, 2550 – 2557 (2011)
2010
V. I. Yudin, A. V. Taichenachev, C. W. Oates, Z. W. Barber, N. D. Lemke, A. D. Ludlow, U. Sterr, C. Lisdat, & F. RiehleHyper-Ramsey Spectroscopy of Optical Clock Transitions
Phys. Rev. A 81, 011804(R) (2010)
S. Liu, I. Sherstov, Ch. Lisdat, H. Knöckel, & E. TiemannRamsey-Bordé interferometer and embedded Ramsey interferometer with molecular matter waves of 39K2
Eur. Phys. J. D 58, 369 – 377(2010)
2009
Ch. Lisdat, J. S. R. Vellore Winfred, T. Middelmann, F. Riehle, & U. Sterr: Collisional Losses, Decoherence, and Frequency Shifts in Optical Lattice Clocks with Bosons
Phys. Rev. Lett. 103, 090801 (2009)
T. Legero, C. Lisdat, J. S. R. Vellore Winfred, H. Schnatz, G. Grosche, F. Riehle, & U. SterrInterrogation laser for a strontium lattice clock
IEEE Trans. Instrum. Meas. 58, 1252 – 1257 (2009)
H. Salami, T. Bergeman, B. Beser, J. Bai, E. H. Ahmed, S. Kotochigova, A. M. Lyyra, J. Huennekens, C. Lisdat, A. V. Stolyarov, O. Dulieu, P. Crozet, & A. J. Ross: Spectroscopic observations, spin-orbit functions, and coupled-channel deperturbation analysis of data on the A 1Σu+ and b 3Πu states of Rb2
Phys. Rev. A 80, 022515 (2009)
A. V. Taichenachev, V. I. Yudin, C. W. Oates, Z. W. Barber, N. D. Lemke, A. D. Ludlow, U. Sterr, C. Lisdat, & F. RiehleCompensation of Field-Induced Frequency Shifts in Ramsey Spectroscopy of Optical Clock Transitions
JETP Lett. 90, 713 – 717 (2009)
T. Legero, Ch.Lisdat, J. S. R. Vellore Winfred, H. Schnatz, G. Grosche, F. Riehle, & U. Sterr
L. Maleki (Ed.)Clock Laser System for a Strontium Lattice Clock
Proceedings of the 7th Symposium Frequency Standards and Metrology, World Scientific, 427 – 431 (2009)
2008
T. Nazarova, Ch. Lisdat, F. Riehle, & U. SterrLow-frequency-noise diode laser for atom interferometry
J. Opt. Soc. Am. B 25, 1632 – 1638 (2008)
S. Falke, H. Knöckel, J. Friebe, M. Riedmann, E. Tiemann, & C. Lisdat Potassium ground-state scattering parameters and Born-Oppenheimer potentials from molecular spectroscopy
Phys. Rev. A 78, 012503 (2008)
2007 und davor
Ch. Grain, T. Nazarova, C. Degenhardt, F. Vogt, Ch. Lisdat, E. Tiemann, U. Sterr, & F. RiehleFeasibility of narrow-line cooling in optical dipole traps
Eur. Phys. J. D 42, 317 – 324 (2007)
F. Vogt, Ch. Grain, T. Nazarova, U. Sterr, F. Riehle, Ch. Lisdat, & E. TiemannDetermination of the calcium ground state scattering length by photoassociation spectroscopy at large detunings
Eur. Phys. J. D 44, 73 – 79 (2007)
C. Degenhardt, H. Stoehr, Ch. Lisdat, G. Wilpers, H. Schnatz, B. Lipphardt, T. Nazarova, P.-E. Pottie, U. Sterr, J. Helmcke, & F. RiehleCalcium optical frequency standard with ultracold atoms: Approaching 10-15 relative uncertainty
Phys. Rev. A 72, 062111-1-17 (2005)
C. Degenhardt, H. Stoehr, U. Sterr, F. Riehle, & Ch. LisdatWavelength dependent ac-Stark shift of the 1S0-3P1 transition at 657 nm in Ca
Phys. Rev. A 70, 023414-1-6 (2004)
U. Sterr, C. Degenhardt, H. Stoehr, Ch. Lisdat, H. Schnatz, J. Helmcke, F. Riehle, G. Wilpers, Ch. Oates, & L. HollbergThe Optical Calcium Frequency Standards of PTB and NIST
C. R. Physique 5, 845 – 855 (2004)
C. Degenhardt, T. Binnewies, G. Wilpers, U. Sterr, F. Riehle, Ch. Lisdat, & E. TiemannPhotoassociation spectroscopy of cold calcium atoms
Phys. Rev. A 67, 043408-1-6 (2003)
Publisher Copyright
1) Copyright: The American Physical Society (APS)
PhD theses (online here)
Jacopo Grotti, 2018: A transportable optical lattice clock for metrology and geodesy
Ali Al-Masoudi, 2016: A strontium lattice clock with reduced blackbody radiation shift
Stefan Vogt, 2015: Eine transportable optische Gitteruhr basierend auf Strontium
Sebastian Häfner, 2015: Ultrastabile Lasersysteme für Weltraum und Bodenanwendungen
Thomas Middelmann, 2013:
Bestimmung des Einflusses thermischer Strahlung auf eine optische Strontium-Gitteruhr
Joseph Sundar Raaj Vellore Winfred, 2010:
Investigation of collisional losses and decoherence in a 1-D optical lattice clock with 88Sr
PTB publications
maßstäbe Heft 12: Meilensteine, Am Puls der Zeit (2013)
PTB-Mitteilungen 2018, Heft 3: Quantentechnologie mit Atomen und Photonen Teil I
PTB-Mitteilungen 2009, Heft 2: QUEST
PTBnews 3/2018: Mobile Atomuhr als Höhenmesser
PTBnews 2/2017: Most accurate and most stable transportable optical clock
PTBnews 3/2016: A “light highway” for highprecision frequencies
PTBnews 2/2016: World record for two optical clocks
PTBnews 2/2013: Optical strontium clock to become much more accurate
PTBnews 1/2011: PTB's strontium lattice clock is ticking
PTBnews 2/2009: Collisions in optical lattice clocks under control