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CONTACT

Head of the group:

Prof. Dr. Thorsten Schumm
Tel.: +43-1-58801-141896
Fax: +43-1-58801-14199
Room number: ZA 01 40

TU Wien - Atominstitut
Stadionallee 2
1020 Vienna
Austria

Publications

2019

Energy of the Th-229 nuclear clock transition
Benedict Seiferle, Lars von der Wense, Pavlo V. Bilous, Ines Amersdorffer, Christoph Lemell, Florian Libisch,Simon Stellmer, Thorsten Schumm, Christoph E. Düllmann, Adriana Pálffy, Peter G. Thirolf
https://arxiv.org/pdf/1905.06308.pdf (2019)

X-ray pumping of the Th-229 nuclear clock isomer
Takahiko Masuda, Akihiro Yoshimi, Akira Fujieda, Hiroyuki Fujimoto, Hiromitsu Haba, Hideaki Hara, Takahiro Hiraki, Hiroyuki Kaino, Yoshitaka Kasamatsu, Shinji Kitao, Kenji Konashi, Yuki Miyamoto, Koichi Okai, Sho Okubo, Noboru Sasao, Makoto Seto, Thorsten Schumm, Yudai Shigekawa, Kenta Suzuki, Simon Stellmer, Kenji Tamasaku, Satoshi Uetake, Makoto Watanabe, Tsukasa Watanabe, Yuki Yasuda, Atsushi Yamaguchi, Yoshitaka Yoda, Takuya Yokokita, Motohiko Yoshimura, Koji Yoshimura
https://arxiv.org/pdf/1902.04823.pdf (2019)

All-solid-state VUV frequency comb at 160 nm using high-harmonic generation in nonlinear femtosecond enhancement cavity
J. Seres, E. Seres, C. Serrat, E. C. Young, J. S. Speck, T. Schumm
Optics Express Vol. 27, Issue 5, pp. 6618-6628 (2019)

Nubis et Nuclei: A study on Noise and Precision
K. Ergenzinger, T. Schumm, S. Stellmer
Leonardo Vol. 52, Issue 1 (2019)

2018

Non-Perturbative generation of DUV/VUV harmonics from crystal surfaces at 108 MHz repetition rate
J. Seres, E. Seres, C. Serrat, T. Schumm
Optics Express Vol 26, Issue 17, pp. 21900-21909 (2018)

Towards an energy measurement of the internal conversion electron in the de-excitation of the Th-229 isomer
S. Stellmer, Y. Shigekawa, V. Rosecker, G. A. Kazakov, Y. Kasamatsu, Y. Yasuda, A. Shinohara, T. Schumm
Phys. Rev. C 98, 014317 (2018)

Attempt to optically excite the nuclear isomer in Th-229
S. Stellmer, G. A. Kazakov, M. Schreitl, H. Kaser, M. Kolbe, T. Schumm
Phys. Rev. A 97, 062506 (2018)

Relaxation to a Phase-locked Equilibrium State in a One-dimensional Bosonic Josephson Junction
M. Pigneur, T. Berrada, M. Bonneau, T. Schumm, E. Demler, J. Schmiedmayer
Phys. Rev. Lett. 120, 173601 (2018)

Nuclear resonant scattering experiment with fast time response: Photonuclear excitation of Hg-201
A. Yoshimi, H. Hara, T. Hiraki, Y. Kasamatsu, S. Kitao, Y. Kobayashi, K. Konashi, R. Masuda, T. Masuda, Y. Miyamoto, K. Okai, S. Okubo, R. Ozaki, N. Sasao, O. Sato, M. Seto, T. Schumm, Y. Shigekawa, S. Stellmer, K. Suzuki, S. Uetake, M. Watanabe, A. Yamaguchi, Y. Yasuda, Y. Yoda, K. Yoshimura, M. Yoshimura
Phys. Rev. C 97, 024607 (2018)

2017

Prospects for a bad cavity laser using a large ion crystal
G. Kazakov, J. Bohnet, T. Schumm
Phys. Rev. A 96, 023412 (2017)

Internal conversion from excited electronic states of  229Th ions
P. V. Bilous, G. A. Kazakov, I. D. Moore, T. Schumm, A. Pàlffy
Phys. Rev. A 95, 032503 (2017)

Stability analysis for bad cavity lasers using inhomogeneously broadened spin-1/2 atoms as a gain medium
G. Kazakov, T. Schumm
Phys. Rev. A 95, 023839 (2017)

2016

Feasibility study of measuring the Th-229 nuclear isomer transition with U-233 doped crystals
S. Stellmer, M. Schreitl, G. Kazakov, J. Sterba, T. Schumm
Phys. Rev. C 94, 014302 (2016)

Towards a measurement of the nuclear clock transition in 229 Th
S. Stellmer, M. Schreitl, G. Kazakov, K. Yoshimura, T. Schumm
Journal of Physics: Conference Series Vol. 723, 012059 (2016)

Non-planar femtosecond enhancement cavity for VUV frequency comb applications
Georg Winkler, Jakob Fellinger, Jozsef Seres, Enikoe Seres, Thorsten Schumm
Optics Letters Vol. 24, Issue 5, pp. 5253-5262 (2016)

2015

Parametric-squeezing amplification of Bose-Einstein condensates
G. Jäger, T. Berrada, J. Schmiedmayer, T. Schumm, U. Hohenester
Phys. Rev. A 92, 053632 (2015)

Radioluminescence and photoluminescence of Th:CaF2 crystals
S. Stellmer, M. Schreitl, T. Schumm
Nature Scientific Reports 5, 15580 (2015)

Magic radio-frequency dressing for trapped atomic microwave clocks
G. Kazakov, T. Schumm
Phys. Rev. A 91, 023404 (2015)

2014

229Thorium-doped calcium fluoride for nuclear laser spectroscopy
P. Dessovic, P. Mohn, R. A. Jackson, G. Winkler, M. Schreitl, G. Kazakov, T. Schumm
Journal of Physics: Condensed Matter Vol. 26, 105402 (2014)

Prospects for measuring the 229Th isomer energy using a metallic magnetic microcalorimeter
G. A. Kazakov, V. Schauer, J. Schwestka, S. P. Stellmer, J. H. Sterba, A. Fleischmann, L. Gastaldo, A. Pabinger, C. Enss, T. Schumm
Nuclear Instruments and Methods in Physics Research A Vol. 735, pp. 229-239 (2014)

2013

Active optical frequency standard using sequential coupling of optical ensembles
G. Kazakov, T. Schumm
Phys. Rev. A 87, 013821 (2013)

2012

Performance of a 229Thorium solid-state nuclear clock
G. A. Kazakov, A. N. Litvinov, V. I. Romanenko, L. P. Yatsenko, A. V. Romanenko, M. Schreitl, G. Winkler, T. Schumm
New Journal of Physics Vol. 14, 083019 (2012)