Publications

2015

H. Matsubara, A. Tamii, H. Nakada et al.: Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei, Phys. Rev. Lett. 115, 102501 (2015).

B. Dietz, A. Richter, and R. Samajdar: Cross-section fluctuations in open microwave billiards and quantum graphs: The counting-of-maxima method revisited, Phys. Rev. E. 92, 022904 (2015).

B. Dietz, and A. Richter: Quantum and wave dynamical chaos in superconducting microwave billiards, Chaos 25, 097601 (2015).

B. Dietz, T. Klaus, M. Miski-Oglu, and A. Richter: Spectral properties of superconducting microwave photonic crystals modeling Dirac billiards, Phys. Rev. B. 91, 035411 (2015).

2014

S. Bittner, B. Dietz, M. Miski-Oglu, and A. Richter: Dielectric square resonator investigated with microwave experiments, Phys. Rev. E 90, 052909 (2014).

B. Dietz, T. Guhr, B. Gutkin, M. Miski-Oglu, and A. Richter: Spectral properties and dynamical tunneling in constant-width billiards, Phys. Rev. E 90, 022903 (2014). (arXiv)

S. Bittner, B. Dietz, H.L. Harney, M. Miski-Oglu, A. Richter, and F. Schäfer: Scattering experiments with microwave billiards at an exceptional point under broken time-reversal invariance, Phys. Rev. E 89, 032909 (2014). (arXiv)

2013

S. Bittner, E. Bogomolny, B. Dietz, M. Miski-Oglu, and A. Richter: Experimental observation of localized modes in a dielectric square resonator, Phys. Rev. E 88, 062906 (2013). (arXiv)

B. Dietz, M. Miski-Oglu, N. Pietralla, A. Richter, L. von Smekal, J. Wambach, F. Iachello Lifshitz and Excited State Quantum Phase Transitions in Microwave Dirac Billiards

Phys. Rev. B 88,104101 (2013). (arXiv)

S. Kumar, A. Nock, H.-J. Sommers, T. Guhr, B. Dietz, M. Miski-Oglu, A. Richter, and F. Schäfer Distribution of Scattering Matrix Elements in Quantum Chaotic Scattering

Phys. Rev. Lett. 111, 030403 (2013). (arXiv)

S. Bittner, B. Dietz, M. Miski-Oglu, A. Richter, C. Ripp, E. Sadurní, and W. P. Schleich Bound states in sharply bent waveguides: Analytical and experimental approach

Phys. Rev. E 87, 042912 (2013). (arXiv)

2012:

S. Bittner, B. Dietz, R. Dubertrand, J. Isensee, M. Miski-Oglu, and A. Richter: Trace formula for chaotic dielectric resonators tested with microwave experiments, Phys. Rev. E 85, 056203 (2012). (arXiv)

S. Bittner, B. Dietz, M. Miski-Oglu, and A. Richter: Extremal transmission through a microwave photonic crystal and the observation of edge states in a rectangular Dirac billiard, Phys. Rev. B 85, 064301 (2012). (arXiv)

S. Bittner, E. Bogomolny, B. Dietz, M. Miski-Oglu, and A. Richter: Application of a trace formula to the spectra of flat three-dimensional dielectric resonators, Phys. Rev. E 85, 026203 (2012). (arXiv)

S. Bittner, B. Dietz, U. Günther, H. L. Harney, M. Miski-Oglu, A. Richter, and F. Schäfer: PT symmetry and spontaneous symmetry breaking in microwave billiards, Phys. Rev. Lett. 108, 024101 (2012). (arXiv)

2011:

S. Bittner, B. Dietz, M. Miski-Oglu, P. Oria Iriarte, A. Richter, and F. Schäfer: Double-Slit Experiments with Microwave Billiards, Phys. Rev. E 84, 016221 (2011). (arXiv)

B. Dietz, H. L. Harney, O. N. Kirillov, M. Miski-Oglu, A. Richter, and F. Schäfer: Exceptional Points in a Microwave Billiard with Time-Reversal Invariance Violation, Phys. Rev. Lett. 106, 150403 (2011). (arXiv)

B. Dietz, A. Richter, and H. A. Weidenmüller: Correlation widths in quantum-chaotic scattering, Phys. Lett. B 697, 313 (2011). (arXiv)

2010:

B. Dietz, and H. A. Weidenmüller: Photonuclear reactions induced by intense short laser pulses, Phys. Lett. B 693, 316 (2010). (arXiv)

G. E. Mitchell, A. Richter, and H. A. Weidenmüller: Random Matrices and Chaos in Nuclear Physics: Nuclear Reactions, Rev. Mod. Phys. 82, 2845 (2010). (arXiv)

S. Bittner, B. Dietz, M. Miski-Oglu, P. Oria-Iriarte, A. Richter, and F. Schäfer: Observation of a Dirac point in microwave experiments with a photonic crystal modeling graphene, Phys. Rev. B 82, 014301 (2010). (arXiv)

S. Bittner, E. Bogomolny, B. Dietz, M. Miski-Oglu, P. Oria Iriarte, A. Richter, and F. Schäfer: Experimental test of a trace formula for two-dimensional dielectric resonators, Phys. Rev. E 81, 066215 (2010). (arXiv)

B. Dietz, T. Friedrich, H. L. Harney, M. Miski-Oglu, A. Richter, F. Schäfer, and H. A. Weidenmüller: Quantum chaotic scattering in microwave resonators, Phys. Rev. E 81, 036205 (2010). (arXiv)

B. Dietz, H. L. Harney, A. Richter, F. Schäfer, and H. A. Weidenmüller: Cross-section fluctuations in chaotic scattering, Phys. Lett. B 685, 263 (2010). (arXiv)

2009:

A. Bäcker, B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, F. Schäfer, and S. Tomsovic: Friedel oscillations in microwave billiards, Phys. Rev. E 80, 066210 (2009). (arXiv)

C. Poli, B. Dietz, O. Legrand, F. Mortessagne, and A. Richter: Avoided-level-crossing statistics in open chaotic billiards, Phys. Rev. E 80, 035204(R) (2009). (arXiv)

B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, F. Schäfer, and T. H. Seligmann: Nonperiodic echoes from quantum mushroom-billiard hats, Phys. Rev. E 80, 036212 (2009). (arXiv)

S. Bittner, B. Dietz, M. Miski-Oglu, P. Oria Iriarte, A. Richter, and F. Schäfer: Experimental test of a two-dimensional approximation for dielectric microcavities, Phys. Rev. A 80, 023825 (2009). (arXiv)

B. Dietz, T. Friedrich, H. L. Harney, M. Miski-Oglu, A. Richter, F. Schäfer, J. Verbaarschot, and H. A. Weidenmüller: Induced Violation of Time-Reversal Invariance in the Regime of Weakly Overlapping Resonances, Phys. Rev. Lett. 103, 064101 (2009). (arXiv)

2008:

B. Dietz, T. Friedrich, H. L. Harney, M. Miski-Oglu, A. Richter, F. Schäfer, and H. A. Weidenmüller: Chaotic scattering in the regime of weakly overlapping resonances, Phys. Rev. E 78, 055204(R) (2008). (arXiv)

B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, and F. Schäfer: Properties of nodal domains in a pseudointegrable barrier billiard, Phys. Rev. E 78, 045201(R) (2008).

S. Åberg, T. Guhr, M. Miski-Oglu, and A. Richter: Superscars in Billiards: A Model for Doorway States in Quantum Spectra, Phys. Rev. Lett. 100, 204101 (2008). (arXiv, pdf)

B. Dietz, B. Mößner, T. Papenbrock, U. Reif, and A. Richter: Bouncing ball orbits and symmetry breaking effects in a three-dimensional chaotic billiard, Phys. Rev. E 77, 046221 (2008). (arXiv, pdf)

A. Y. Abul-Magd, B. Dietz, T. Friedrich, and A. Richter: Spectral fluctuations of billiards with mixed dynamics: From time series to superstatistics, Phys. Rev. E 77, 046202 (2008). (arXiv)

E. G. Altmann, T. Friedrich, A. E. Motter, H. Kantz, and A. Richter: Prevalence of marginally unstable periodic orbits in chaotic billiards, Phys. Rev. E 77, 016205 (2008). (arXiv)

2007:

B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, and F. Schäfer: Spectral properties of Bunimovich mushroom billiards, Phys. Rev. E. 75, 035203(R) (2007). (arXiv)

B. Dietz, T. Friedrich, H. L. Harney, M. Miski-Oglu, A. Richter, F. Schäfer, and H. A. Weidenmüller: Induced Time-Reversal Symmetry Breaking Observed in Microwave Billiards, Phys. Rev. Lett. 98, 074103 (2007). (arXiv)

B. Dietz, T. Friedrich, J. Metz, M. Miski-Oglu, A. Richter, F. Schäfer, and C. A. Stafford: Rabi oscillations at exceptional points in microwave billiards, Phys. Rev. E. 75, 027201 (2007). (arXiv)

2006:

E. Bogomolny, B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, F. Schäfer, and C. Schmit: First Experimental Observation of Superscars in a Pseudointegrable Barrier Billiard, Phys. Rev. Lett. 97, 254102 (2006). (arXiv)

B. Dietz, T. Friedrich, M. Miski-Oglu, A. Richter, T.H. Seligman, and K. Zapfe: Nonperiodic echoes from mushroom billiard hats, Phys. Rev. E 74, 056207 (2006). (arXiv)

B. Dietz, T. Guhr, H. L. Harney, and A. Richter: Strength Distributions and Symmetry Breaking in Coupled Microwave Billiards, Phys. Rev. Lett. 96, 254101 (2006). (arXiv)

B. Dietz, A. Heine, A. Richter, O. Bohigas, and P. Leboeuf: Spectral statistics in an open parametric billiard system, Phys. Rev. E 73, 035201R (2006). (arXiv)

2005:

C. Dembowski, B. Dietz, T. Friedrich, H.-D. Gräf, H.L. Harney, A. Heine, M. Miski-Oglu, and A. Richter: Distribution of resonance strengths in microwave billiards of mixed and chaotic dynamics, Phys. Rev. E 71, 046202 (2005).(pdf)

R. Hofferbert, H. Alt, C. Dembowski, H.-D. Gräf, H.L. Harney, A. Heine, H. Rehfeld, and A. Richter: Experimental investigations of chaos-assisted tunneling in a microwave annular billiard, Phys. Rev. E 71, 046201 (2005).

B. Dietz, A. Heine, V. Heuveline, and A. Richter: Test of a numerical approach to the quantization of billiards, Phys. Rev. E 71, 026703 (2005).

2004:

C. Dembowski, B. Dietz, T. Friedrich, H.-D. Gräf, A. Heine, C. Mejía-Monasterio, M. Miski-Oglu, A. Richter, and T. H. Seligman: First Experimental Evidence for Quantum Echoes in Scattering Systems, Phys. Rev. Lett. 93, 134102 (2004). (arXiv)

S. Åberg, A. Heine, G. E. Mitchell, A. Richter: Isospin symmetry breaking in 93Tc and statistical properties, Physics Letters B 598, 42 (2004).

J. Enders, T. Guhr, A. Heine, P. von Neumann-Cosel, V. Yu. Ponomarev, A. Richter, J. Wambach: Spectral statistics and the fine structure of the electric pygmy dipole resonance in N=82 nuclei, Nuclear Physics A 741, 3 (2004).

C. Dembowski, B. Dietz, H.-D. Gräf, H.-L. Harney, A. Heine, W. D. Heiss, and A. Richter: Encircling an exceptional point, Phys. Rev. E 69, 056216 (2004). (arXiv)

2003:

F. Beck, C. Dembowski, A. Heine, and A. Richter: R-matrix theory of driven electromagnetic cavities, Phys. Rev. E 67, 066208 (2003).

C. Dembowski, B. Dietz, H.-D. Gräf, H.-L. Harney, A. Heine, W. D. Heiss, and A. Richter: Observation of a Chiral State in a Microwave Cavity, Phys. Rev. Lett. 90, 034101 (2003).

C. Dembowski, B. Dietz, H.-D. Gräf, A. Heine, F. Leyvraz, M. Miski-Oglu, A. Richter, and T. H. Seligman: Phase Shift Experiments Identifying Kramers Doublets in a Chaotic Superconducting Microwave Billiard of Threefold Symmetry, Phys. Rev. Lett. 90, 014102 (2003).

2002:

C. Dembowski, B. Dietz, H.-D. Gräf, A. Heine, T. Papenbrock, A. Richter, and C. Richter: Experimental Test of a Trace Formula for a Chaotic Three Dimensional Microwave Cavity, Phys. Rev. Lett. 89, 064101 (2002).

A. Y. Abul-Magd, C. Dembowski, H. L. Harney, and M. H. Simbel: Bayesian analysis of level-spacing distributions for chaotic systems with broken symmetry, Phys. Rev. E 65, 056221 (2002).

2001:

C. Dembowski, H.-D. Gräf, A. Heine, T. Hesse, H. Rehfeld, and A. Richter: First Experimental Test of a Trace Formula for Billiard Systems Showing Mixed Dynamics, Phys. Rev. Lett. 86, 3284 (2001).

C. Dembowski, H.-D. Gräf, H.L. Harney, A. Heine, W.D. Heiss, H. Rehfeld, and A. Richter: Experimental Observation of the Topological Structure of Exceptional Points, Phys. Rev. Lett. 86, 787 (2001).

2000:

C. Dembowski, H.-D. Gräf, A. Heine, H. Rehfeld, A. Richter, and C. Schmit: Gaussian unitary ensemble statistics in a time-reversal invariant microwave triangular billiard, Phys. Rev. E 62, R4516 (2000).

M. Philipp, P. von Brentano, G. Pascovici, and A. Richter: Frequency and width crossing of two interacting resonances in a microwave cavity, Phys. Rev. E 62, 1922 (2000).

C. Dembowski, H.-D. Gräf, A. Heine, R. Hofferbert, H. Rehfeld, and A. Richter: First Experimental Evidence for Chaos-Assisted Tunneling in a Microwave Annular Billiard, Phys. Rev. Lett. 84, 867 (2000).

1999:

C. Dembowski, H.-D. Gräf, R. Hofferbert, H. Rehfeld, A. Richter, and T. Weiland: Anderson localization in a string of microwave cavities, Phys. Rev. E 60, 3942 (1999).

H. Alt, C. Dembowski, H.-D. Gräf, R. Hofferbert, H. Rehfeld, A. Richter, and C. Schmit: Experimental versus numerical eigenvalues of a Bunimovich stadium billiard: A comparison, Phys. Rev. E 60, 2851 (1999).

1998:

H. Alt, C. I. Barbosa, H.-D. Gräf, T. Guhr, H. L. Harney, R. Hofferbert, H. Rehfeld, and A. Richter: Coupled Microwave Billiards as a Model for Symmetry Breaking, Phys. Rev. Lett. 81, 4847 (1998).

H. Alt, A. Bäcker, C. Dembowski, H.-D. Gräf, R. Hofferbert, H. Rehfeld, and A. Richter: Mode fluctuation distribution for spectra of superconducting microwave billiards, Phys. Rev. E 58, 1737 (1998).

1997:

H. Alt, C. Dembowski, H.-D. Gräf, R. Hofferbert, H. Rehfeld, A. Richter, R. Schuhmann, and T. Weiland: Wave Dynamical Chaos in a Superconducting Three-Dimensional Sinai Billiard, Phys. Rev. Lett. 79, 1026 (1997.

H. Alt, H.-D. Gräf, T. Guhr, H.L. Harney, R. Hofferbert, H. Rehfeld, A. Richter and P. Schardt: Correlation-hole method for spectra of superconducting microwave billiards, Phys. Rev. E 55, 6674 (1997).

1996:

H. Alt, H.-D. Gräf, R. Hofferbert, H. Rehfeld, A. Richter, P. Schardt and A. Wirzba: Chaotic dynamics in a three-dimensional superconducting microwave billiard, Phys. Rev. E 54, 2303 (1996).

H. Alt, H.-D. Gräf, H. L. Harney, R. Hofferbert, H. Lengeler, A. Richter, P. Schardt and H.A. Weidenmüller: Reply on the comment on “Gaussian Orthogonal Ensemble-Statistics in a Microwave Stadium Billiard with Chaotic Dynamics: Porter-Thomas Distribution and Algebraic Decay of Time Correlations”, by A. Kudrolli and S. Sridhar, Phys. Rev. Lett. 76, 3037 (1996).

H. Alt, H.-D. Gräf, H. L. Harney, R. Hofferbert, H. Rehfeld, A. Richter and P. Schardt: Decay of classical chaotic systems: The case of the Bunimovich stadium, Phys. Rev. E 53, 2217 (1996).

H. Alt, P. von Brentano, H.-D. Gräf, R. Hofferbert, M. Philipp, H. Rehfeld, A. Richter and P. Schardt: Precision test of the Breit-Wigner formula on resonances in a superconducting microwave cavity, Phys. Lett. B 366, 7 (1996).

1995:

H. Alt, H.-D. Gräf, H. L. Harney, R. Hofferbert, H. Lengeler, A. Richter, P. Schardt and H. A. Weidenmüller: Gaussian Orthogonal Ensemble-Statistics in a Microwave Stadium Billiard with Chaotic Dynamics: Porter-Thomas Distribution and Algebraic Decay of Time Correlations, Phys. Rev. Lett. 74, 62 (1995).

1994:

H. Alt, H.-D. Gräf, H.L. Harney, R. Hofferbert, H. Lengeler, C. Rangacharyulu, A. Richter and P. Schardt: Superconducting billiard cavities with chaotic dynamics: An experimental test of statistical measures, Phys. Rev. E 50, R1 (1994).

1993:

H. Alt, P. von Brentano, H.-D. Gräf, R.-D. Herzberg, M. Philipp, A. Richter and P. Schardt, Resonances of a superconducting microwave cavity: A test of the Breit-Wigner formula over a large dynamic range, Nucl. Phys. A 560, 293 (1993).

1992:

H.-D. Gräf, H. L. Harney, H. Lengeler, C. H. Lewenkopf, C. Rangacharyulu, A. Richter, P. Schardt and H. A. Weidenmüller: Distribution of Eigenstates in a Superconducting Stadium Billiard with Chaotic Dynamics, Phys. Rev. Lett. 69, 1296 (1992).

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