University of Heidelberg
Ulrich Schmidt homepage

Ulrich Schmidt

Phone +49 6221 54 19460
Room INF 226 | 03.111
Email ulrich.schmidt(_a)physi.uni-heidelberg.de

ANP PAT Apl. Prof.
Physikalisches Institut

Research Interests

Tech| Spin Manipulation - Gas Spin Comagnetometry - Neutron Optics - Neutron Detectors - Ultra Cold Neutrons - Spin Echo
Fields| Particle Physics - Nuclear Physics - Neutron Physics - EDM - Lorentz and CPT Symmetry

Scientific Education

2016 Apl. Prof.
Physikalisches Institut, Heidelberg University
2011 Group Leader
Physikalisches Institut, Heidelberg University
2005 Habilitation in Experimental Physics
Physikalisches Institut, Heidelberg University
1995 Doctoral Thesis
Technische Universität München Department E21
1990 Diploma in Physics
Physikalisches Institut, Heidelberg University

Research experience

2016- Apl. Professor
Physikalisches Institut, Heidelberg University
2005-2016 Privatdozent
Physikalisches Institut, Heidelberg University
2001-2005 Scientific Assistant
Physikalisches Institut, Heidelberg University
1998-2001 Research Associate
Department of Physics, University of Washington, Seattle
1995-1998 Scientific Assistant
Physikalisches Institut, Heidelberg University
1991-1995 Scientific Assistant
Technische Universität München Department E21

Scientific Highlights

2019 F. Allmendinger et al.
Measurement of the permanent electric dipole moment of the 129Xe atom
Phys. Rev. A 100, 022505 DOI: 10.1103/PhysRevA.100.022505
2018 C. Roick, D. Dubbers, B. Märkisch, H. Saul and U. Schmidt
Electron time-of-flight: A new tool in β-decay spectroscopy
Phys. Rev. C 97, 035502 DOI: 10.1103/PhysRevC.97.035502
2015 M. Köhli et al.
Footprint characteristics revised for field-scale soil moisture monitoring with cosmic-ray neutrons
Water Resources Research, 51, 5772-5790 DOI: 10.1002/2015WR017169
2014 F. Allmendinger et al.
New Limit on Lorentz-Invariance- and CPT-Violating Neutron Spin Interactions Using a Free-Spin-Precession 3He-129Xe Comagnetometer
Phys. Rev. Lett. 112, 110801 DOI: 10.1103/PhysRevLett.112.110801
2013 K. Tullney et al.
Constraints on Spin-Dependent Short-Range Interaction between Nucleons
Phys. Rev. Lett. 111, 100801 DOI: 10.1103/PhysRevLett.111.100801
2009 S. Filipp et al.
Experimental Demonstration of the Stability of Berry's Phase for a Spin-1/2 Particle
Phys. Rev. Lett. 102, 030404 DOI: 10.1103/PhysRevLett.102.030404
2001 C.D. Hoyle et al.
Submillimeter Test of the Gravitational Inverse-Square Law: A Search for "Large" Extra Dimensions
Phys. Rev. Lett. 86, 1418-1421 DOI: 10.1103/PhysRevLett.86.1418
1999 S. Bässler et al.
Improved Test of the Equivalence Principle for Gravitational Self-Energy
Phys. Rev. Lett. 83, 3585-3588DOI: 10.1103/PhysRevLett.83.3585

Publications

Full Publication List    see pdf-File

2019

PRA F. Allmendinger et al.
Measurement of the permanent electric dipole moment of the 129Xe atom
Phys. Rev. A 100, 022505 DOI: 10.1103/PhysRevA.100.022505

2018

NIMA M. Köhli et al.
Response functions for detectors in cosmic ray neutron sensing
Nucl. Instr. and Meth. A 902, 184-189 DOI: 10.1016/j.nima.2018.06.052
PRC C. Roick et al.
Electron time-of-flight: A new tool in β-decay spectroscopy
Phys. Rev. C 97, 035502 (2018) DOI: 10.1103/PhysRevC.97.035502

2017

EJP F. Allmendinger et al.
Precise Measurement of Magnetic Field Gradients from Free Spin Precession Signals of 3He and 129Xe Magnetometers
Eur. J. Phys 71, 71-98 DOI: 10.1140/epjd/e2017-70505-4
HESS M. Schrön et al.
Improving calibration and validation of cosmic-ray neutron sensors in the light of spatial sensitivity
Hydrol. Earth Syst. Sci. 21, 5009-5030 DOI: 10.5194/hess-21-5009-2017

2016

Conf F. Allmendinger et al.
Limit on Lorentz-Invariance- and CPT-Violating Neutron Spin Interactions Using a 3He and 129Xe Comagnetometer
Int. J. Mod. Phys. Conf. Ser. 40, 1660082 DOI: 10.1142/S201019451660082X
Conf K. Tullney et al.
Search for Spin-Dependent Short-Range Interaction with an 3He/129Xe Clock Comparison Experiment
Int. J. Mod. Phys. Conf. Ser. 40, 1660083 DOI: 10.1142/S2010194516600831
NIMA D. Dubbers et al.
Generation of narrow peaks in spectroscopy of charged particles
Nucl. Instr. and Meth. A 837, 50-57 DOI: 10.1016/j.nima.2016.09.004
NIMA M. Köhli et al.
Efficiency and spatial resolution of the CASCADE thermal neutron detector
Nucl. Instr. and Meth. A 828, 242-249 DOI: 10.1016/j.nima.2016.05.014
Conf M. Köhli et al.
CASCADE - a multi-layer Boron-10 neutron detection system
IOP Journal of Physics: Conference Series 746, 012003 (VI European Conference on Neutron Scattering - ECNS2015) DOI: 10.1088/1742-6596/746/1/012003

2015

WRR M. Köhli et al.
Footprint characteristics revised for field-scale soil moisture monitoring with cosmic-ray neutrons
Water Resources Research, 51, 5772-5790 DOI: 10.1002/2015WR017169
Conf H. Abele et al.
High Precision Experiments with Cold and Ultra-Cold Neutrons
JPS Conference Proceedings 8, 026001 DOI: 10.7566/JPSCP.8.026001

2014

NIMA G. Modzel et al.
Absolute effciency measurements with the 10B based Jalousie detector
Nucl. Instr. and Meth. A 734, 90-95 DOI: 10.1016/j.nima.2014.01.007
PRL T. Jenke et al.
Gravity Resonance Spectroscopy Constrains Dark Energy and Dark Matter Scenarios
Phys. Rev. Lett. 112, 151105 DOI: 10.1103/PhysRevLett.112.151105
Conf F. Allmendinger et al.
Using a rotating magnetic guiding field for the 3He-129Xe-Comagnetometer
CPT and Lorentz Symmetry - Proceedings of the Sixth Meeting Bloomington, 252-254 DOI: 10.1142/9789814566438_0064

2013

PPN S. Karpuk et al.
Spin polarized He-3: From basic research to medical applications
Physics of Particles and Nuclei 44, 904-908 DOI: 10.1134/S1063779613060105
AnnPhys W. Heil et al.
Spin clocks: Probing fundamental symmetries in nature
Annalen der Physik 525, 539-549 DOI: 10.1002/andp.201300048
HyInt F. Allmendinger et al.
Searches for Lorentz violation in 3He/129Xe clock comparison experiments
Hyperfine Interactions 215, 15-23 DOI: 10.1007/s10751-013-0785-x
Bio M.C. Sobotta et al.
Exposing cells to H2O2: A quantitative comparison between continuous low-dose and one-time high-dose treatments
Free Radical Biology and Medicine 60, 325-335 DOI: 10.1016/j.freeradbiomed.2013.02.017
arXiv T. Jenke et al.
A quantized frequency reference in the short-ranged gravity potential and its application for dark matter and dark engery searches
arxiv:hep-ex , - arXiv:1208.3875

2012

NIMA G. Modzel et al.
The 10B based Jalousie neutron detector - an alternative for 3He filled position sensitive counter tubes
Nucl. Instr. and Meth. A 686, 151-155 DOI: 10.1016/j.nima.2012.05.075
Conf G. Konrad et al.
Neutron decay with PERC: A progress report
Journal of Physics: Conference Series 340, 012048 DOI: 10.1088/1742-6596/340/1/012048

2011

EPJA T. Lauer et al.
Experimental investigation of a low-cost solid state detector with high spatial resolution for ultracold neutrons
The European Physical Journal A 47, 150 DOI: 10.1140/epja/i2011-11150-0
Conf M. Burghoff et al.
Probing Lorentz invariance and other fundamental symmetries in 3He/129Xe clock-comparison experiments
Journal of Physics: Conference Series 295, 012017 DOI: 10.1088/1742-6596/295/1/012017
SciInst W. Häussler et al.
Detection of high frequency intensity oscillations at RESEDA using the CASCADE detector
The Review of Scientific Instruments 82, 045101 DOI:10.1063/1.3571300
Conf C.J. Schmidt et al.
CASCADE with NRSE: Fast intensity modulation techniques used in quasielastic neutron scattering
Journal of Physics: Conference Series 251, 012067 DOI:10.1088/1742-6596/251/1/012067
NIMA M. Klein et al.
CASCADE, neutron detectors for highest count rates in combination with ASIC/FPGA based readout electronics
Nucl. Instr. and Meth. A 628, 9-18 DOI: 10.1016/j.nima.2010.06.278

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