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Ausgewählte Veröffentlichungen und Literatur

Übersichtsartikel und Bücher von PTB-Autoren

 A. D. Ludlow, M. M. Boyd, Jun Ye, E. Peik, P. O. Schmidt: Optical Atomic Clocks [pdf]. Rev. Mod. Phys. 87. 637 (2015)

A. Bauch: Time and frequency comparisons using radiofrequency signals from satellites [pdf]. Science Direct, Comptes Rendus Physique 16, 5, 471-479 (2015)

A. Bauch: Zeitmessung in der PTB [pdf]5). PTB-Mitteilungen 122, 23-36 (2012)

E. Peik, U. Sterr: Optische Uhren. Physik in unserer Zeit 6, 288-294 (2008)

F. Riehle: Frequency standards: basics and applications. Wiley-VCH, Weinheim (2005)

R. Wynands, S. Weyers: Atomic fountain clocks [pdf]1). Metrologia 42, 64-79 (2005)

A. Bauch: Caesium atomic clocks: function, performance, and applications [pdf]Measurement Science and Technology 14, 1159-1173 (2003)

A. Bauch, H. R. Telle: Frequency standards and frequency measurement. Reports on Progress in Physics 65, 789-843 (2002)

A. Bauch: Eine Notiz zur Geschichte der Caesiumatomuhren [pdf]5).PTB-Mitteilungen 105, 430-433 (1995)

A. Bauch: Genaue Zeit in Wissenschaft und Technik. Physik in unserer Zeit 2, 60-68 (1995)

A. Bauch: Lieferanten der Zeit. Physik in unserer Zeit 4, 188-198 (1994)

Informationsbroschüre der PTB: Die SI-Basiseinheiten, Definition, Entwicklung und Realisierung

Empfohlene Literatur von anderen Autoren

L. Maleki, ed.: Proceedings of the 7th Symposium on Frequency Standards and Metrology. World Scientific, Singapore (2008)

H. J. Metcalf, P.v.d. Straten: Laser cooling and trapping. Springer, Berlin (2006).

N. F. Ramsey: History of early atomic clocks. Metrologia 42, 1-3 (2005)

B. Guinot, E. F. Arias: Atomic time-keeping from 1955 to the present. Metrologia 42, 20-29 (2005)

P. Gill: Proceedings of the 6th Symposium on Frequency Standards and Metrology, ed. World Scientific, Singapore (2001)

C. Audoin, B.Guinot, S. Lyle: The measurement of time. Cambridge University Press, Cambridge (2001)

A. Luiten (Ed.): Frequency measurement and control - advanced techniques and future trends. Springer, Berlin (2001)

T. Jones: Splitting the Second - The story of atomic time. Institute of Physics Publishing, Bristol and Philadelphia (2000)

J. Levine: Introduction to time and frequency metrology. Review of Scientific Instruments 70, 2567-2596 (1999)

P. Fisk: Trapped-ion and trapped-atom microwave frequency standards. Rep. Prog. Phys. 60, 761-817 (1997)

C. Audoin: Caesium beam frequency standards: classical and optically pumped. Metrologia 29, 113-134 (1992)

J. Vanier, C. Audoin: The quantum physics of atomic frequency standards. Adam Hilger, Bristol and Philadelphia (1989)

Caesium-Uhren mit thermischem Atomstrahl

A. Bauch: The PTB primary clocks CS1 and CS2 (pdf)1). Metrologia 42, 43-54 (2005)

A. Bauch, B. Fischer, T. Heindorff, P. Hetzel, G. Petit, R. Schröder, P. Wolf: Comparisons of the PTB primary clocks with TAI in 1999 [pdf]1). Metrologia 37, 683-692 (2000)

A. Bauch, B. Fischer, T. Heindorff, R. Schröder: Performance of the PTB reconstructed primary clock CS1 and an estimate of its current uncertainty [pdf]1). Metrologia 35, 829-845 (1998)

A. Bauch, R. Schröder: Experimental Verification of the Shift of the Cesium Hyperfine Transition Frequency due to Blackbody Radiation [pdf]2). Phys. Rev. Lett. 78, 622-625 (1997)

A. Bauch: Optical Pumping in Cs Atomic Clocks. PTB-Bericht, PTB-Opt-51, Braunschweig, 105-113 (1996)

S. Weyers: Optische Zustandspräparation und Detektion in einer Caesium-Atomuhr mit magnetischer Zustandsselektion. Dissertation der Universität Münster. PTB-Bericht, PTB-Opt-45, Braunschweig (1994)


V. Gerginov, N. Nemitz, and S. Weyers: Initial atomic coherences and Ramsey frequency pulling in fountain clocks2) Phys. Rev. A. 90, 033829 (2014)

M. Kazda, V. Gerginov, N. Nemitz, and S. Weyers: Investigation of Rapid Adiabatic Passage for Controlling Collisional Frequency Shifts in a Caesium Fountain Clock [pdf]4). IEEE Transactions on Instrumentation and Measurement 62 (10), 2812-2819 (2013)

N. Nemitz, V. Gerginov, R. Wynands, S. Weyers: Atomic trajectory characterization in a fountain clock based on the spectrum of a hyperfine transition [pdf]1) Metrologia 49, 468-478 (2012)

S. Weyers, V. Gerginov, N. Nemitz, R. Li and K. Gibble: Distributed cavity phase frequency shifts of the caesium fountain PTB-CSF2 [pdf]1)Metrologia 49, 82-87 (2012)

V. Gerginov, N. Nemitz, S. Weyers, R. Schröder,  D. Griebsch and R. Wynands: Uncertainty evaluation of the caesium fountain clock PTB-CSF2 [pdf]1). Metrologia 47, 65-79 (2010)

B. Lipphardt, G. Grosche, U. Sterr, Chr. Tamm, S. Weyers and H. Schnatz: The Stability of an Optical Clock Laser Transferred to the Interrogation Oscillator for a Cs Fountain [pdf]4). IEEE Transactions on Instrumentation and Measurement 58 (4), 1258–1262 (2009)

S. Weyers, B. Lipphardt, and H. Schnatz: Reaching the quantum limit in a fountain clock using a microwave oscillator phase locked to an ultrastable laser [pdf]2). Phys. Rev. A 79, 031803(R) (2009)

K. Szymaniec, W. Chalupczak, S. Weyers, R. Wynands: Prospects of operating a caesium fountain clock at zero collisional frequency shift [pdf]3). Applied Physics B 89, 187–193 (2007)

K. Szymaniec, W. Chalupczak, S. Weyers, R. Wynands: Apparent power-dependent frequency shift due to collisions in a caesium fountain [pdf]4). IEEE Trans. Ultrason. Ferroelectr. Freq. Control 54, 1721-1722 (2007)

K. Szymaniec, W. Chalupczak, E. Tiesinga, C. J. Williams, S. Weyers, R. Wynands: Cancellation of the collisional frequency shift in caesium fountain clocks [pdf]2). Phys. Rev. Lett. 98, 153002-1-4 (2007)

R. Wynands, R. Schröder, S. Weyers: Majorana transitions in an atomic fountain clock [pdf]4). IEEE Trans. Instrum. Meas. 56, 660-663 (2007)

S. Weyers, R. Schröder und R. Wynands: Effects of microwave leakage in caesium clocks: theoretical and experimental results [pdf]. Proc.of the 20th European Frequency and Time Forum, 173-180 (2006)

A. Bauch, S. Weyers: New experimental limit on the validity of local position invariance [pdf]2). Phys. Rev. D 65, 081101-1-4(R) (2002)

S. Weyers, A. Bauch, R. Schöder, Chr. Tamm: The atomic caesium fountain CSF1 of PTB. Proc. of the 6th Symposium on Frequency Standards and Metrology, ed.: P. Gill, ISBN 981-02-4911-X, World Scientific, Singapore, 64-71 (2001)

S. Weyers, U. Hübner, R. Schröder, Chr. Tamm, A. Bauch: Uncertainty evaluation of the atomic caesium fountain CSF1 of the PTB [pdf]1). Metrologia 38, 343-352 (2001)

T. Parker, P. Hetzel, S. Jefferts, S. Weyers, L. Nelson, A. Bauch, J. Levine: First Comparison of Remote Cesium Fountains [pdf]4). Proc. 2001 IEEE International Frequency Control Symposium and PDA Exhibition, 6-8, Seattle, USA, 63-68 (2001)

S. Weyers, A. Bauch, U. Hübner, R. Schröder, Chr. Tamm: First Performance Results of the PTB's Atomic Caesium Fountain and a Study of Contributions to its Frequency Instability [pdf]4). IEEE Transaction on Ultrasonics, Ferroelectrics, and Frequency Control 47, No. 2, 432-437 (2000)

S. Weyers, D. Griebsch, U. Hübner, R. Schröder, C. Tamm, A. Bauch: Die neue Caesiumfontaene der PTB [pdf]5). PTB-Mitteilungen 109, 483-491 (1999)

Langwellensender DCF77

D. Piester, A. Bauch, J. Becker, A. Hoppmann: Time and frequency broadcast with DCF77 [pdf]; Proc. 43rd Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, 14-17 Nov 2011, Long Beach, California, USA, pp. 185-196 (2012).

A. Bauch, P. Hetzel, D. Piester: Zeit- und Frequenzverbreitung mit DCF77: 1959 – 2009 und darüber hinaus [pdf]5).PTB-Mitteilungen 119, Heft 3, 217-240 (2009). Sonderausgabe in englisch: Special Topic: 50 years of time dissemination with DCF77

D. Piester, A. Bauch, J. Becker, T. Polewka, M. Rost, D. Sibold, E. Staliuniene: PTB’s Time and Frequency Activities in 2006: New DCF77 Electronics, New NTP Servers, and Calibration Activities [pdf]; Proc. 38th Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, Reston, Virginia, USA, 5-7 Dec 2006, 37-47 (2007)

D. Piester, P. Hetzel, A. Bauch: Zeit- und Normalfrequenzverbreitung mit DCF77 [pdf]5); PTB-Mitteilungen 114, Heft 4, 345-368 (2004)

P. Hetzel: Der Langwellensender DCF77 auf 77,5 kHz: 40 Jahre Zeitsignale und Normalfrequenz, 25 Jahre kodierte Zeitinformation [pdf]5); PTB-Mitteilungen 109, Heft 1, 11-18 (1999)

P. Hetzel: Time dissemination via the LF transmitter DCF77 using a pseudo-random phase-shift keying of the carrier  [pdf]. Proc. 2nd European Frequency and Time Forum, 16-18 Mar 1988, Neuchâtel, Switzerland, 351-364 (1988)

P. Hetzel: Zeitübertragung auf Langwelle durch amplitudenmodulierte Zeitsignale und pseudozufällige Umtastung der Trägerphase [pdf]. Dissertation, Universität Stuttgart (1987)

Zeit- und Frequenzübertragung

H. Hachisu, M. Fujieda, S. Nagano, T. Gotoh, A. Nogami, T. Ido, S. Falke, N. Huntemann, C. Grebing, B. Lipphardt, C. Lisdat, D. Piester: Direct comparison of optical lattice clocks with an intercontinental baseline of 9 000 km. Optics Letters 39, 14, 4072-5 (2014). doi: 10.1364/OL.39.004072arXiv: 1403.6285

M. Fujieda, D. Piester, T. Gotoh, J. Becker, M. Aida and A. Bauch: Carrier-phase two-way satellite frequency transfer over a very long baseline. Metrologia 51, 253-262 (2014). doi:10.1088/0026-1394/51/3/253arXiv: 1403.3193

T. Feldmann, A. Bauch, D. Piester, P. Alvarez, D. Autiero, J. Serrano, G. Brunetti: Relative Calibration of the Time Transfer Link between CERN and LNGS for Precise Neutrino Time of Flight Measurements [pdf]. Proc. 44th Annual Precise Time and Time Interval (PTTI) Systems and Application Meeting, 26-29 Nov 2012, Reston, Virginia, USA,141-150, (2012)

M. Rost, D. Piester, W. Yang, T. Feldmann, T. Wübbena, A. Bauch: Time transfer through optical fibers over a distance of 73 km with an uncertainty below 100 ps [pdf]1). Metrologia 49, 6, 772-778, (2012). doi: 10.1088/0026-139/49/6/772arXiv:1209.4467

T. Feldmann: Advances in GPS based Time and Frequency Comparisons for Metrological Use [pdf]. Dissertation, Leibniz Universität Hannover (2011)

D. Piester, M. Rost, M. Fujieda, T. Feldmann, A. Bauch: Remote atomic clock synchronization via satellites and optical fibers. Adv. Radio Sci, 9, 1-7, (2011). doi: 10.5194/ars-9-1-2011

A. Bauch, D. Piester, M. Fujieda, W. Lewandowski: Directive for operational use and data handling in two-way satellite time and frequency transfer (TWSTFT), Rapport BIPM-2011/01

T. Feldmann, A. Bauch, D. Piester, M. Rost, E. Goldberg, S. Mitchell, B. Fonville: Advanced GPS-based time link calibration with PTB’s new GPS calibration setup  [pdf]. Proc. 42nd Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, 15-18 Nov 2010, Reston, Virginia, USA, 509-526 (2011).

T. Feldmann, A. Bauch, D. Piester, A. Stefanov, L.-G. Bernier, C. Schlunegger, K. Liang: On improved GPS-based calibration of the time links between METAS and PTB [pdf]. Proc. 24th European Frequency and Time Forum, 13-16 April 2010, Noordwijk, The Netherlands, paper 12.3 (2010).

M. Rost, M. Fujieda, D. Piester: Time Transfer Through Optical Fibers (TTTOF): Progress on Calibrated Clock Comparisons [pdf]. Proc. 24th European Frequency and Time Forum, 13-16 April 2010, Noordwijk, The Netherlands, paper 6.4 (2010).

H. Esteban, J. Palacio, F. J. Galindo, T. Feldmann, A. Bauch, D. Piester: Improved GPS-Based Time Link Calibration Involving ROA and PTB [pdf]4). IEEE Trans. UFFC 57, 3, 714-720 (2010). doi: 10.1109/TUFFC.2010.1469

D. Piester, T. Feldmann, A. Bauch, M. Fujieda, T. Gotoh: Concept for an Accurate Calibration of Long Baseline Two-Way Satellite Time and Frequency Transfer (TWSTFT) Links via Two Separated Transponders on One Telecommunication Satellite [pdf]4). Proc. European Frequency and Time Forum – IEEE Frequency Control Symposium Joint Conference, 20-24 Apr 2009, Besançon, France, 1076-1081, (2009). doi: 10.1109/FREQ.2009.5168362

A. Bauch, D. Piester, B. Blanzano, O. Koudelka, E. Kroon, E. Dierikx, P. Whibberley, J. Achkar, D. Rovera, L. Lorini, F. Cordara, C. Schlunegger: Results of the 2008 TWSTFT Calibration of Seven European Stations [pdf]4) . Proc. European Frequency and Time Forum – IEEE Frequency Control Symposium Joint Conference, 20-24 Apr 2009, Besançon, France, 1209-1215, (2009). doi: 10.1109/FREQ.2009.5168392

D. Piester, M. Fujieda, M. Rost, A. Bauch: Time Transfer Through Optical Fibers (TTTOF): First Results of Calibrated Clock Comparisons [pdf], Proc. 41th Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, 16-19 Nov 2009, Santa Ana Pueblo, New Mexico, USA (2009)

D. Piester, A. Bauch, J. Becker, E. Staliuniene, C. Schlunegger: On Measurement Noise in the European TWSTFT Network. IEEE Trans. UFFC, 1906-1912 (2008)

D. Piester, A. Bauch, L. Breakiron, D. Matsakis, B. Blanzano, O. Koudelka: Time transfer with nanosecond accuracy for the realization of International AtomicTime [pdf)1). Metrologia 45, 185-198 (2008)

D. Piester, A. Bauch, M. Fujieda, T. Gotoh, M. Aida, H. Maeno, M. Hosokawa, S. H. YangStudies on instabilities in long-baseline two-way satellite time and frequency transfer (TWSTFT) including a troposphere delay model [pdf]. Proc. 39th Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting, 27-29 Nov 2007, Long Beach, California, USA, 211-222 (2008)

J. Achkar, P. Tuckey, P. Uhrich, D. Valat, A. Batchelor, G. Burden, A. Bauch, D. Piester, F. Cordara, P. Tavella, J. Davis, J. Delporte, R. Jones, T. Levin, G. Staton, J. Nawrocki, J.-M. Piéplu: Fidelity – Progress Report on Delivering the Prototype Galileo Time Service Provider [pdf]4). Proc. IEEE International Frequency Control Symposium Jointly with the 21st European Frequency and Time Forum, Geneva, Switzerland, 29 May – 1 Jun 2007, 446-451 (2007). doi: 10.1109/FREQ.2007.4319114

D. Piester, C. Schlunegger, A. Bauch, J. Becker, G. Dudle, E. Staliuniene: Two-way satellite time transfer for Galileo [pdf]. Proc. 1st Colloquium Scientific and Fundamental Aspects of the Galileo Programme, 1-4 Oct (2007), Toulouse, France, on CD-ROM, 8 pages, 2007.

M. Fujieda, T. Gotoh, D. Piester, M. Kumagai, S. Weyers, A. Bauch, R. Wynands, M. Hosokawa: First comparison of primary frequency standards between Europe and Asia [pdf]4). Proc. IEEE International Frequency Control Symposium Jointly with the 21st European Frequency and Time Forum, Geneva, Switzerland, 29 May – 1 Jun 2007, 937-941 (2007). doi: 10.1109/FREQ.2007.4319217

A. Bauch, J. Achkar, S. Bize, D. Calonico, R. Dach, R. Hlavać, L. Lorini, T. Parker, G. Petit, D. Piester, K. Szymaniec, P. Uhrich: Comparison between frequency standards in Europe and the US at the 10-15 uncertainty level [pdf]1). Metrologia 43, 109-120 (2006)

C. Hackman, J. Levine, T. Parker, D. Piester, J. Becker: A Straightforward Frequency-Estimation Technique for GPS Carrier-Phase Time Transfer; IEEE Trans. UFFC, 53, 9, 1570-1583 (2006)

H. Maeno, M. Fujieda, D. Piester, A. Bauch, M. Aida, Q. T. Lam, Y. Takahashi: Establishment of a TWSTFT link between Asia and Europe connecting NICT and PTB [pdf]. Proc. 20th European Frequency and Time Forum, 27-30 Mar 2006, Braunschweig, Germany, 575-579 (2006).

D. Piester, A. Bauch, J. Becker, T. Polewka, A. McKinley, L. Breakiron, A. Smith, B. Fonville, D. Matsakis: Two-Way Satellite Time Transfer between USNO and PTB [pdf]4). Proc. 2005 Joint IEEE International Frequency Control Symposium and Precise Time and Time Interval Systems and Applications Meeting, 29-31 Aug 2005, Vancouver, BC, Canada, 316-323, 2005. doi: 10.1109/FREQ.2005.1573952

Optische Frequenznormale mit gespeicherten Ionen

Chr. Tamm, N. Huntemann, B. Lipphardt, V. Gerginov, N. Nemitz, M. Kazda, S. Weyers,  E. Peik: Cs-Based Optical Frequency Measurement Using Cross-Linked Optical and Microwave Oscillators [pdf].2) Phys. Rev. A  89, 023820 (2014)

N. Huntemann, B. Lipphardt, M. Okhapkin, Chr. Tamm, E. Peik, A.V. Taichenachev, V. I. Yudin: Generalized Ramsey Excitation Scheme with Suppressed Light Shift [pdf].2) Phys. Rev. Lett. 109, 213002 (2012)

N. Huntemann, M. Okhapkin, B. Lipphardt, S. Weyers, Chr. Tamm, E. Peik: High-Accuracy Optical Clock Based on the Octupole Transition in 171Yb+ [pdf] 2) Phys. Rev. Lett. 108, 090801 (2012)

V. I. Yudin, A. V. Taichenachev, M. V. Okhapkin, S. N. Bagayev, Chr. Tamm, E. Peik, N. Huntemann, T.E. Mehlstäubler, F. Riehle: Atomic clocks with Suppressed Blackbody Radiation Shift [pdf]2). Phys. Rev. Lett. 107, 030801 (2011)

I. Sherstov, M. Okhapkin, B. Lipphardt, Chr. Tamm, E. Peik: Diode-laser system for high-resolution spectroscopy of the 2S1/2  2F7/2 octupole transition in 171Yb+ [pdf] 2). Phys. Rev. A 81, 021805(R) (2010)

Chr. Tamm, S. Weyers, B. Lipphardt, E. Peik: Stray-field-induced quadrupole shift and absolute frequency of the 688-THz 171Yb+ single-ion optical frequency standard [pdf]2). Phys. Rev. A 80, 043403 (2009)

Chr. Tamm, B. Lipphardt, H. Schnatz, R. Wynands, S. Weyers, T . Schneider, E. Peik: 171Yb+ single-ion optical frequency standard at 688 THz [pdf]4). IEEE Trans. Instrum. Meas. 56, 601 (2007)

E. Peik, T. Schneider, Chr. Tamm: Laser frequency stabilization to a single ion.

J. Phys. B: At. Mol. Opt. Phys. 39, 145 (2006)

T. Schneider, E. Peik, Chr. Tamm: Sub-hertz optical frequency comparisons between two trapped 171Yb+ ions [pdf]2). Phys. Rev. Lett. 94, 230801 (2005)

J. Stenger, H. Schnatz, Chr. Tamm, H. R. Telle: Ultraprecise Measurement of Optical Frequency Ratios [pdf]2). Phys. Rev. Lett. 88, 073601 (2002)

Tests auf Veränderungen der Naturkonstanten

N. Huntemann, B. Lipphardt, Chr. Tamm, V. Gerginov, S. Weyers, E. Peik: Improved Limit on a Temporal Variation of m p /m e from Comparisons Yb+ and Cs Atomic Clocks (pdf]2). Phys. Rev. Lett. 133, 210802 (2014)

E. Peik: Fundamental constants and units and the search for temporal variations (pdf]Nuclear Phys. B. (Proc. Suppl.) 203, 18 (2010)

S. G. Karshenboim, E. Peik: Astrophysics, atomic clocks and fundamental constants.
Eur. Phys. J. Special Topics 163, 1 (2008)

E. Peik, B. Lipphardt, H. Schnatz, Chr. Tamm, S. Weyers, R. Wynands: Laboratory limits on temporal variations of fundamental constants: an update. Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity, Eds.: H. Kleinert, R. T. Jantzen and R. Ruffini (World Scientifc, Singapore) 941-951 (2008); arXiv: physics/0611088

S. G. Karshenboim, V. Flambaum, E. Peik: Atomic clocks and constraints on variations of fundamental constants. Handbook of Atomic, Molecular and Optical Physics, Ed.: G. Drake, 2. edition (Springer, New York) 455-463 (2005); arXiv: physics/0410074

E. Peik, B. Lipphardt, H. Schnatz, T. Schneider, Chr. Tamm, S. G. Karshenboim: Limit on the present temporal variation of the fine structure constant [pdf]2). Phys. Rev. Lett. 93, 170801 (2004)

Chr. Tamm, T. Schneider, E. Peik: Trapped ion optical frequency standards for laboratory tests of alpha-variability, in: Astrophysics, Clocks and Fundamental Constants, Lecture Notes in Physics Vol. 648, Eds.: S. G. Karshenboim, E. Peik (Springer, Heidelberg, 2004)


Optische Kernspektroskopie von 229Th 

M. V. Okhapkin,  D. M. Meier,  E. Peik, M. S. Safronova, M. G. Kozlov, S. G. Porsev: Observation of an unexpected negative isotope shift in 229Th+ and its theoretical explanation. Phys. Rev. A922), 020503 (2015)

E. Peik, M. Okhapkin: Nuclear clocks based on resonant excitation of gamma-transitions [pdf]. C. R. Physique 15, 516-523 (2015)

A. Yamaguchi, M. Kolbe, H. Kaser, T. Reichel, A. Gottwald, E. Peik:  Experimental search for the low-energy nuclear transition in 229Th with undulator radiation[pdf]1). New J. Phys. 17, 053053 (2015)

O. A. Herrera-Sancho, N. Nemitz, M. V. Okhapkin, E. Peik: Energy levels of Th+ between 7.3 and 8.3 eV [pdf]2)Phys. Rev. A 88, 012512 (2013)

E. Peik, K. Zimmermann: Comment on ‘‘Observation of the Deexcitation of the 229mTh Nuclear Isomer’’ [pdf]2)PRL 111, 018901 (2013)

O. A. Herrera-Sancho, M. V. Okhapkin, K. Zimmermann, Chr. Tamm, E. Peik: Two-photon laser excitaton of trapped 232Th+  ions via the 402-nm resonance line [pdf]2). Phys. Rev. A 85, 033402 (2012)

K. Zimmermann, M. V. Okhapkin, O. A. Herrera-Sancho, and E. Peik: Laser ablation loading of a radiofrequency ion trap [pdf]3)Appl.Phys.B. 107, 883 (2012)

S. G. Porsev, V. V. Flambaum, E. Peik, Chr. Tamm: Excitation of the isomeric 229mTh nuclear state via an electronic bridge process in 229Th+ [pdf]2). Phys. Rev. Lett. 105, 182501 (2010)

K. Zimmermann: Experiments towards optical nuclear spectroscopy with Thorium-229 [pdf]. Dissertation, Leibniz Universität Hannover, (2010) 

E. Peik, K. Zimmermann, M. Okhapkin, Chr. Tamm: Prospects for a nuclear optical frequency standard based on Thorium-229. Proceedings of the 7th Symposium on Frequency Standards and Metrology; arXiv:0812.3458

E. Peik: Long-lasting photoluminescence in polymers [pdf]1)J.Phys. D: Appl. Phys. 40, 3330 (2007)

E. Peik, Chr. Tamm: Nuclear laser spectroscopy of the 3.5 eV transition in Th-229 [pdf]1). Europhys. Lett. 61, 181-186 (2003)

Publisher Copyright

1) Copyright: IOP Publishing Ldt.

2) Copyright: The American Physical Society (APS) 

3) Copyright: Springer Verlag (The final publication is available at www.spingerlink.com)

4) Copyright: Institute of Electrical and Electronics Engineers (IEEE)

5) Copyright: Wirtschaftsverlag NW, Verlag für neue Wissenschaft GmbH, Bremerhaven