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Alpha cluster condensation in 12C and 16O.

Physical review letters

Tohsaki A, Horiuchi H, Schuck P, Röpke G.
PMID: 11690406
Phys Rev Lett. 2001 Nov 05;87(19):192501. doi: 10.1103/PhysRevLett.87.192501. Epub 2001 Oct 17.

A new alpha-cluster wave function is proposed which is of the alpha-particle condensate type. Applications to 12C and 16O show that states of low density close to the 3 and 4 alpha-particle thresholds in both nuclei are possibly of...

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Tohsaki A, Horiuchi H, Schuck P, et al. Alpha cluster condensation in 12C and 16O. Phys Rev Lett. 2001;87(19):192501doi: 10.1103/PhysRevLett.87.192501.
Tohsaki, A., Horiuchi, H., Schuck, P., & Röpke, G. (2001). Alpha cluster condensation in 12C and 16O. Physical review letters, 87(19), 192501. https://doi.org/10.1103/PhysRevLett.87.192501
Tohsaki, A, et al. "Alpha cluster condensation in 12C and 16O." Physical review letters vol. 87,19 (2001): 192501. doi: https://doi.org/10.1103/PhysRevLett.87.192501
Tohsaki A, Horiuchi H, Schuck P, Röpke G. Alpha cluster condensation in 12C and 16O. Phys Rev Lett. 2001 Nov 05;87(19):192501. doi: 10.1103/PhysRevLett.87.192501. Epub 2001 Oct 17. PMID: 11690406.
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Dynamic structure factor for a two-component model plasma.

Physical review. E, Statistical, nonlinear, and soft matter physics

Selchow A, Röpke G, Wierling A, Reinholz H, Pschiwul T, Zwicknagel G.
PMID: 11736104
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Nov;64(5):056410. doi: 10.1103/PhysRevE.64.056410. Epub 2001 Oct 24.

Analytical results for the structure factor of a two-component model plasma that describe an electron-ion plasma with modified interaction are derived from a Green function approach in different approximations. The random-phase approximation is improved by including the dynamic collision...

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Selchow A, Röpke G, Wierling A, et al. Dynamic structure factor for a two-component model plasma. Phys Rev E Stat Nonlin Soft Matter Phys. 2001;64(5):056410doi: 10.1103/PhysRevE.64.056410.
Selchow, A., Röpke, G., Wierling, A., Reinholz, H., Pschiwul, T., & Zwicknagel, G. (2001). Dynamic structure factor for a two-component model plasma. Physical review. E, Statistical, nonlinear, and soft matter physics, 64(5), 056410. https://doi.org/10.1103/PhysRevE.64.056410
Selchow, A, et al. "Dynamic structure factor for a two-component model plasma." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 64,5 (2001): 056410. doi: https://doi.org/10.1103/PhysRevE.64.056410
Selchow A, Röpke G, Wierling A, Reinholz H, Pschiwul T, Zwicknagel G. Dynamic structure factor for a two-component model plasma. Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Nov;64(5):056410. doi: 10.1103/PhysRevE.64.056410. Epub 2001 Oct 24. PMID: 11736104.
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Plasmon resonance in warm dense matter.

Physical review. E, Statistical, nonlinear, and soft matter physics

Thiele R, Bornath T, Fortmann C, Höll A, Redmer R, Reinholz H, Röpke G, Wierling A, Glenzer SH, Gregori G.
PMID: 18850950
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Aug;78(2):026411. doi: 10.1103/PhysRevE.78.026411. Epub 2008 Aug 21.

Collective Thomson scattering with extreme ultraviolet light or x rays is shown to allow for a robust measurement of the free electron density in dense plasmas. Collective excitations like plasmons appear as maxima in the scattering signal. Their frequency...

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Thiele R, Bornath T, Fortmann C, et al. Plasmon resonance in warm dense matter. Phys Rev E Stat Nonlin Soft Matter Phys. 2008;78(2):026411doi: 10.1103/PhysRevE.78.026411.
Thiele, R., Bornath, T., Fortmann, C., Höll, A., Redmer, R., Reinholz, H., Röpke, G., Wierling, A., Glenzer, S. H., & Gregori, G. (2008). Plasmon resonance in warm dense matter. Physical review. E, Statistical, nonlinear, and soft matter physics, 78(2), 026411. https://doi.org/10.1103/PhysRevE.78.026411
Thiele, R, et al. "Plasmon resonance in warm dense matter." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 78,2 (2008): 026411. doi: https://doi.org/10.1103/PhysRevE.78.026411
Thiele R, Bornath T, Fortmann C, Höll A, Redmer R, Reinholz H, Röpke G, Wierling A, Glenzer SH, Gregori G. Plasmon resonance in warm dense matter. Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Aug;78(2):026411. doi: 10.1103/PhysRevE.78.026411. Epub 2008 Aug 21. PMID: 18850950.
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Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas.

Physical review. E, Statistical, nonlinear, and soft matter physics

Fortmann C, Wierling A, Röpke G.
PMID: 20365663
Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Feb;81(2):026405. doi: 10.1103/PhysRevE.81.026405. Epub 2010 Feb 18.

The dynamic structure factor, which determines the Thomson scattering spectrum, is calculated via an extended Mermin approach. It incorporates the dynamical collision frequency as well as the local-field correction factor. This allows to study systematically the impact of electron-ion...

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Fortmann C, Wierling A, Röpke G. Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas. Phys Rev E Stat Nonlin Soft Matter Phys. 2010;81(2):026405doi: 10.1103/PhysRevE.81.026405.
Fortmann, C., Wierling, A., & Röpke, G. (2010). Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas. Physical review. E, Statistical, nonlinear, and soft matter physics, 81(2), 026405. https://doi.org/10.1103/PhysRevE.81.026405
Fortmann, Carsten, et al. "Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas." Physical review. E, Statistical, nonlinear, and soft matter physics vol. 81,2 (2010): 026405. doi: https://doi.org/10.1103/PhysRevE.81.026405
Fortmann C, Wierling A, Röpke G. Influence of local-field corrections on Thomson scattering in collision-dominated two-component plasmas. Phys Rev E Stat Nonlin Soft Matter Phys. 2010 Feb;81(2):026405. doi: 10.1103/PhysRevE.81.026405. Epub 2010 Feb 18. PMID: 20365663.
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Power-law dependence of the photodarkening rate constant on the inversion in Yb doped fibers.

Optics letters

Jetschke S, Röpke U.
PMID: 19241636
Opt Lett. 2009 Jan 01;34(1):109-11. doi: 10.1364/ol.34.000109.

The description of the photodarkening (PD) kinetics of Yb-doped silica fibers with a stretched exponential function is analyzed in more detail, revealing a dependence of the determined PD parameter values on the measurement time. Thereby, serious uncertainties may occur...

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Jetschke S, Röpke U. Power-law dependence of the photodarkening rate constant on the inversion in Yb doped fibers. Opt Lett. 2009;34(1):109-11doi: 10.1364/ol.34.000109.
Jetschke, S., & Röpke, U. (2009). Power-law dependence of the photodarkening rate constant on the inversion in Yb doped fibers. Optics letters, 34(1), 109-11. https://doi.org/10.1364/ol.34.000109
Jetschke, Sylvia, and Röpke, Ulrich. "Power-law dependence of the photodarkening rate constant on the inversion in Yb doped fibers." Optics letters vol. 34,1 (2009): 109-11. doi: https://doi.org/10.1364/ol.34.000109
Jetschke S, Röpke U. Power-law dependence of the photodarkening rate constant on the inversion in Yb doped fibers. Opt Lett. 2009 Jan 01;34(1):109-11. doi: 10.1364/ol.34.000109. PMID: 19241636.
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Observation of ultrafast nonequilibrium collective dynamics in warm dense hydrogen.

Physical review letters

Fäustlin RR, Bornath T, Döppner T, Düsterer S, Förster E, Fortmann C, Glenzer SH, Göde S, Gregori G, Irsig R, Laarmann T, Lee HJ, Li B, Meiwes-Broer KH, Mithen J, Nagler B, Przystawik A, Redlin H, Redmer R, Reinholz H, Röpke G, Tavella F, Thiele R, Tiggesbäumker J, Toleikis S, Uschmann I, Vinko SM, Whitcher T, Zastrau U, Ziaja B, Tschentscher T.
PMID: 20366540
Phys Rev Lett. 2010 Mar 26;104(12):125002. doi: 10.1103/PhysRevLett.104.125002. Epub 2010 Mar 25.

We investigate ultrafast (fs) electron dynamics in a liquid hydrogen sample, isochorically and volumetrically heated to a moderately coupled plasma state. Thomson scattering measurements using 91.8 eV photons from the free-electron laser in Hamburg (FLASH at DESY) show that...

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Fäustlin RR, Bornath T, Döppner T, et al. Observation of ultrafast nonequilibrium collective dynamics in warm dense hydrogen. Phys Rev Lett. 2010;104(12):125002doi: 10.1103/PhysRevLett.104.125002.
Fäustlin, R. R., Bornath, T., Döppner, T., Düsterer, S., Förster, E., Fortmann, C., Glenzer, S. H., Göde, S., Gregori, G., Irsig, R., Laarmann, T., Lee, H. J., Li, B., Meiwes-Broer, K. H., Mithen, J., Nagler, B., Przystawik, A., Redlin, H., Redmer, R., Reinholz, H., Röpke, G., Tavella, F., Thiele, R., Tiggesbäumker, J., Toleikis, S., Uschmann, I., Vinko, S. M., Whitcher, T., Zastrau, U., Ziaja, B., & Tschentscher, T. (2010). Observation of ultrafast nonequilibrium collective dynamics in warm dense hydrogen. Physical review letters, 104(12), 125002. https://doi.org/10.1103/PhysRevLett.104.125002
Fäustlin, R R, et al. "Observation of ultrafast nonequilibrium collective dynamics in warm dense hydrogen." Physical review letters vol. 104,12 (2010): 125002. doi: https://doi.org/10.1103/PhysRevLett.104.125002
Fäustlin RR, Bornath T, Döppner T, Düsterer S, Förster E, Fortmann C, Glenzer SH, Göde S, Gregori G, Irsig R, Laarmann T, Lee HJ, Li B, Meiwes-Broer KH, Mithen J, Nagler B, Przystawik A, Redlin H, Redmer R, Reinholz H, Röpke G, Tavella F, Thiele R, Tiggesbäumker J, Toleikis S, Uschmann I, Vinko SM, Whitcher T, Zastrau U, Ziaja B, Tschentscher T. Observation of ultrafast nonequilibrium collective dynamics in warm dense hydrogen. Phys Rev Lett. 2010 Mar 26;104(12):125002. doi: 10.1103/PhysRevLett.104.125002. Epub 2010 Mar 25. PMID: 20366540.
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Two-dimensional high-precision fiber waveguide arrays for coherent light propagation.

Optics express

Röpke U, Bartelt H, Unger S, Schuster K, Kobelke J.
PMID: 19547003
Opt Express. 2007 May 28;15(11):6894-9. doi: 10.1364/oe.15.006894.

Fiber waveguide arrays can be applied as a very useful tool for the investigation of effects in discrete optics. The observation of coherent propagation in such discrete waveguide arrays requires, however, high structural precision and great material homogeneity. The...

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Röpke U, Bartelt H, Unger S, et al. Two-dimensional high-precision fiber waveguide arrays for coherent light propagation. Opt Express. 2007;15(11):6894-9doi: 10.1364/oe.15.006894.
Röpke, U., Bartelt, H., Unger, S., Schuster, K., & Kobelke, J. (2007). Two-dimensional high-precision fiber waveguide arrays for coherent light propagation. Optics express, 15(11), 6894-9. https://doi.org/10.1364/oe.15.006894
Röpke, U, et al. "Two-dimensional high-precision fiber waveguide arrays for coherent light propagation." Optics express vol. 15,11 (2007): 6894-9. doi: https://doi.org/10.1364/oe.15.006894
Röpke U, Bartelt H, Unger S, Schuster K, Kobelke J. Two-dimensional high-precision fiber waveguide arrays for coherent light propagation. Opt Express. 2007 May 28;15(11):6894-9. doi: 10.1364/oe.15.006894. PMID: 19547003.
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Three-dimensional light bullets in arrays of waveguides.

Physical review letters

Minardi S, Eilenberger F, Kartashov YV, Szameit A, Röpke U, Kobelke J, Schuster K, Bartelt H, Nolte S, Torner L, Lederer F, Tünnermann A, Pertsch T.
PMID: 21231663
Phys Rev Lett. 2010 Dec 31;105(26):263901. doi: 10.1103/PhysRevLett.105.263901. Epub 2010 Dec 20.

We report the first experimental observation of three-dimensional light bullets, excited by femtosecond pulses in a system featuring quasi-instantaneous cubic nonlinearity and a periodic, transversally modulated refractive index. Stringent evidence of the excitation of light bullets is based on...

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Minardi S, Eilenberger F, Kartashov YV, et al. Three-dimensional light bullets in arrays of waveguides. Phys Rev Lett. 2010;105(26):263901doi: 10.1103/PhysRevLett.105.263901.
Minardi, S., Eilenberger, F., Kartashov, Y. V., Szameit, A., Röpke, U., Kobelke, J., Schuster, K., Bartelt, H., Nolte, S., Torner, L., Lederer, F., Tünnermann, A., & Pertsch, T. (2010). Three-dimensional light bullets in arrays of waveguides. Physical review letters, 105(26), 263901. https://doi.org/10.1103/PhysRevLett.105.263901
Minardi, S, et al. "Three-dimensional light bullets in arrays of waveguides." Physical review letters vol. 105,26 (2010): 263901. doi: https://doi.org/10.1103/PhysRevLett.105.263901
Minardi S, Eilenberger F, Kartashov YV, Szameit A, Röpke U, Kobelke J, Schuster K, Bartelt H, Nolte S, Torner L, Lederer F, Tünnermann A, Pertsch T. Three-dimensional light bullets in arrays of waveguides. Phys Rev Lett. 2010 Dec 31;105(26):263901. doi: 10.1103/PhysRevLett.105.263901. Epub 2010 Dec 20. PMID: 21231663.
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Laboratory tests of low density astrophysical nuclear equations of state.

Physical review letters

Qin L, Hagel K, Wada R, Natowitz JB, Shlomo S, Bonasera A, Röpke G, Typel S, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Barbui M, Rodrigues MR, Schmidt K, Fabris D, Lunardon M, Moretto S, Nebbia G, Pesente S, Rizzi V, Viesti G, Cinausero M, Prete G, Keutgen T, El Masri Y, Majka Z, Ma YG.
PMID: 22680857
Phys Rev Lett. 2012 Apr 27;108(17):172701. doi: 10.1103/PhysRevLett.108.172701. Epub 2012 Apr 24.

Clustering in low density nuclear matter has been investigated using the NIMROD multidetector at Texas A&M University. Thermal coalescence modes were employed to extract densities, ρ, and temperatures, T, for evolving systems formed in collisions of 47A MeV (40)Ar+(112)Sn,...

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Qin L, Hagel K, Wada R, et al. Laboratory tests of low density astrophysical nuclear equations of state. Phys Rev Lett. 2012;108(17):172701doi: 10.1103/PhysRevLett.108.172701.
Qin, L., Hagel, K., Wada, R., Natowitz, J. B., Shlomo, S., Bonasera, A., Röpke, G., Typel, S., Chen, Z., Huang, M., Wang, J., Zheng, H., Kowalski, S., Barbui, M., Rodrigues, M. R., Schmidt, K., Fabris, D., Lunardon, M., Moretto, S., Nebbia, G., Pesente, S., Rizzi, V., Viesti, G., Cinausero, M., Prete, G., Keutgen, T., El Masri, Y., Majka, Z., & Ma, Y. G. (2012). Laboratory tests of low density astrophysical nuclear equations of state. Physical review letters, 108(17), 172701. https://doi.org/10.1103/PhysRevLett.108.172701
Qin, L, et al. "Laboratory tests of low density astrophysical nuclear equations of state." Physical review letters vol. 108,17 (2012): 172701. doi: https://doi.org/10.1103/PhysRevLett.108.172701
Qin L, Hagel K, Wada R, Natowitz JB, Shlomo S, Bonasera A, Röpke G, Typel S, Chen Z, Huang M, Wang J, Zheng H, Kowalski S, Barbui M, Rodrigues MR, Schmidt K, Fabris D, Lunardon M, Moretto S, Nebbia G, Pesente S, Rizzi V, Viesti G, Cinausero M, Prete G, Keutgen T, El Masri Y, Majka Z, Ma YG. Laboratory tests of low density astrophysical nuclear equations of state. Phys Rev Lett. 2012 Apr 27;108(17):172701. doi: 10.1103/PhysRevLett.108.172701. Epub 2012 Apr 24. PMID: 22680857.
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Contribution of electron-atom collisions to the plasma conductivity of noble gases.

Physical review. E

Rosmej S, Reinholz H, Röpke G.
PMID: 28709212
Phys Rev E. 2017 Jun;95(6):063208. doi: 10.1103/PhysRevE.95.063208. Epub 2017 Jun 29.

We present an approach which allows the consistent treatment of bound states in the context of dc conductivity in dense partially ionized noble gas plasmas. Besides electron-ion and electron-electron collisions, further collision mechanisms owing to neutral constituents are taken...

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Rosmej S, Reinholz H, Röpke G. Contribution of electron-atom collisions to the plasma conductivity of noble gases. Phys Rev E. 2017;95(6):063208doi: 10.1103/PhysRevE.95.063208.
Rosmej, S., Reinholz, H., & Röpke, G. (2017). Contribution of electron-atom collisions to the plasma conductivity of noble gases. Physical review. E, 95(6), 063208. https://doi.org/10.1103/PhysRevE.95.063208
Rosmej, S, et al. "Contribution of electron-atom collisions to the plasma conductivity of noble gases." Physical review. E vol. 95,6 (2017): 063208. doi: https://doi.org/10.1103/PhysRevE.95.063208
Rosmej S, Reinholz H, Röpke G. Contribution of electron-atom collisions to the plasma conductivity of noble gases. Phys Rev E. 2017 Jun;95(6):063208. doi: 10.1103/PhysRevE.95.063208. Epub 2017 Jun 29. PMID: 28709212.
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Disorders of spermatogenesis: Perspectives for novel genetic diagnostics after 20 years of unchanged routine.

Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V

Tüttelmann F, Ruckert C, Röpke A.
PMID: 29527098
Med Genet. 2018;30(1):12-20. doi: 10.1007/s11825-018-0181-7. Epub 2018 Feb 26.

Infertility is a common condition estimated to affect 10-15% of couples. The clinical causes are attributed in equal parts to the male and female partners. Diagnosing male infertility mostly relies on semen (and hormone) analysis, which results in classification...

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Tüttelmann F, Ruckert C, Röpke A. Disorders of spermatogenesis: Perspectives for novel genetic diagnostics after 20 years of unchanged routine. Med Genet. 2018;30(1):12-20doi: 10.1007/s11825-018-0181-7.
Tüttelmann, F., Ruckert, C., & Röpke, A. (2018). Disorders of spermatogenesis: Perspectives for novel genetic diagnostics after 20 years of unchanged routine. Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V, 30(1), 12-20. https://doi.org/10.1007/s11825-018-0181-7
Tüttelmann, Frank, et al. "Disorders of spermatogenesis: Perspectives for novel genetic diagnostics after 20 years of unchanged routine." Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V vol. 30,1 (2018): 12-20. doi: https://doi.org/10.1007/s11825-018-0181-7
Tüttelmann F, Ruckert C, Röpke A. Disorders of spermatogenesis: Perspectives for novel genetic diagnostics after 20 years of unchanged routine. Med Genet. 2018;30(1):12-20. doi: 10.1007/s11825-018-0181-7. Epub 2018 Feb 26. PMID: 29527098; PMCID: PMC5838132.
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Ionization potential depression and Pauli blocking in degenerate plasmas at extreme densities.

Physical review. E

Röpke G, Blaschke D, Döppner T, Lin C, Kraeft WD, Redmer R, Reinholz H.
PMID: 30999524
Phys Rev E. 2019 Mar;99(3):033201. doi: 10.1103/PhysRevE.99.033201.

New facilities explore warm dense matter (WDM) at conditions with extreme densities (exceeding ten times condensed matter densities) so that electrons are degenerate even at temperatures of 10-100 eV. Whereas in the nondegenerate region correlation effects such as Debye...

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Röpke G, Blaschke D, Döppner T, et al. Ionization potential depression and Pauli blocking in degenerate plasmas at extreme densities. Phys Rev E. 2019;99(3):033201doi: 10.1103/PhysRevE.99.033201.
Röpke, G., Blaschke, D., Döppner, T., Lin, C., Kraeft, W. D., Redmer, R., & Reinholz, H. (2019). Ionization potential depression and Pauli blocking in degenerate plasmas at extreme densities. Physical review. E, 99(3), 033201. https://doi.org/10.1103/PhysRevE.99.033201
Röpke, Gerd, et al. "Ionization potential depression and Pauli blocking in degenerate plasmas at extreme densities." Physical review. E vol. 99,3 (2019): 033201. doi: https://doi.org/10.1103/PhysRevE.99.033201
Röpke G, Blaschke D, Döppner T, Lin C, Kraeft WD, Redmer R, Reinholz H. Ionization potential depression and Pauli blocking in degenerate plasmas at extreme densities. Phys Rev E. 2019 Mar;99(3):033201. doi: 10.1103/PhysRevE.99.033201. PMID: 30999524.
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Showing 1 to 12 of 84 entries