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Resummation of QED perturbation series by sequence transformations and the prediction of perturbative coefficients.

Physical review letters

Jentschura UD, Becher J, Weniger EJ, Soff G.
PMID: 10978078
Phys Rev Lett. 2000 Sep 18;85(12):2446-9. doi: 10.1103/PhysRevLett.85.2446.

We propose a method for the resummation of divergent perturbative expansions in quantum electrodynamics and related field theories. The method is based on a nonlinear sequence transformation and uses as input data only the numerical values of a finite...

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Jentschura UD, Becher J, Weniger EJ, et al. Resummation of QED perturbation series by sequence transformations and the prediction of perturbative coefficients. Phys Rev Lett. 2000;85(12):2446-9doi: 10.1103/PhysRevLett.85.2446.
Jentschura, U. D., Becher, J., Weniger, E. J., & Soff, G. (2000). Resummation of QED perturbation series by sequence transformations and the prediction of perturbative coefficients. Physical review letters, 85(12), 2446-9. https://doi.org/10.1103/PhysRevLett.85.2446
Jentschura, et al. "Resummation of QED perturbation series by sequence transformations and the prediction of perturbative coefficients." Physical review letters vol. 85,12 (2000): 2446-9. doi: https://doi.org/10.1103/PhysRevLett.85.2446
Jentschura UD, Becher J, Weniger EJ, Soff G. Resummation of QED perturbation series by sequence transformations and the prediction of perturbative coefficients. Phys Rev Lett. 2000 Sep 18;85(12):2446-9. doi: 10.1103/PhysRevLett.85.2446. PMID: 10978078.
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Comment on "A convergent series for the QED effective action".

Physical review letters

Lamm DR, Valluri SR, Jentschura UD, Weniger EJ.
PMID: 11863980
Phys Rev Lett. 2002 Feb 25;88(8):089101. doi: 10.1103/PhysRevLett.88.089101. Epub 2002 Feb 11.

No abstract available.

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Lamm DR, Valluri SR, Jentschura UD, et al. Comment on "A convergent series for the QED effective action". Phys Rev Lett. 2002;88(8):089101doi: 10.1103/PhysRevLett.88.089101.
Lamm, D. R., Valluri, S. R., Jentschura, U. D., & Weniger, E. J. (2002). Comment on "A convergent series for the QED effective action". Physical review letters, 88(8), 089101. https://doi.org/10.1103/PhysRevLett.88.089101
Lamm, D R, et al. "Comment on "A convergent series for the QED effective action"." Physical review letters vol. 88,8 (2002): 089101. doi: https://doi.org/10.1103/PhysRevLett.88.089101
Lamm DR, Valluri SR, Jentschura UD, Weniger EJ. Comment on "A convergent series for the QED effective action". Phys Rev Lett. 2002 Feb 25;88(8):089101. doi: 10.1103/PhysRevLett.88.089101. Epub 2002 Feb 11. PMID: 11863980.
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Two-loop Bethe-logarithm correction in hydrogenlike atoms.

Physical review letters

Pachucki K, Jentschura UD.
PMID: 14525422
Phys Rev Lett. 2003 Sep 12;91(11):113005. doi: 10.1103/PhysRevLett.91.113005. Epub 2003 Sep 11.

We calculate the two-loop Bethe logarithm correction to atomic energy levels in hydrogenlike systems. The two-loop Bethe logarithm is a low-energy quantum electrodynamic (QED) effect involving multiple summations over virtual excited atomic states. Although much smaller in absolute magnitude...

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Pachucki K, Jentschura UD. Two-loop Bethe-logarithm correction in hydrogenlike atoms. Phys Rev Lett. 2003;91(11):113005doi: 10.1103/PhysRevLett.91.113005.
Pachucki, K., & Jentschura, U. D. (2003). Two-loop Bethe-logarithm correction in hydrogenlike atoms. Physical review letters, 91(11), 113005. https://doi.org/10.1103/PhysRevLett.91.113005
Pachucki, Krzysztof, and Jentschura, Ulrich D. "Two-loop Bethe-logarithm correction in hydrogenlike atoms." Physical review letters vol. 91,11 (2003): 113005. doi: https://doi.org/10.1103/PhysRevLett.91.113005
Pachucki K, Jentschura UD. Two-loop Bethe-logarithm correction in hydrogenlike atoms. Phys Rev Lett. 2003 Sep 12;91(11):113005. doi: 10.1103/PhysRevLett.91.113005. Epub 2003 Sep 11. PMID: 14525422.
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New limits on the drift of fundamental constants from laboratory measurements.

Physical review letters

Fischer M, Kolachevsky N, Zimmermann M, Holzwarth R, Udem T, Hänsch TW, Abgrall M, Grünert J, Maksimovic I, Bize S, Marion H, Pereira Dos Santos F, Lemonde P, Santarelli G, Laurent P, Clairon A, Salomon C, Haas M, Jentschura UD, Keitel CH.
PMID: 15245149
Phys Rev Lett. 2004 Jun 11;92(23):230802. doi: 10.1103/PhysRevLett.92.230802. Epub 2004 Jun 10.

We have remeasured the absolute 1S-2S transition frequency nu(H) in atomic hydrogen. A comparison with the result of the previous measurement performed in 1999 sets a limit of (-29+/-57) Hz for the drift of nu(H) with respect to the...

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Fischer M, Kolachevsky N, Zimmermann M, et al. New limits on the drift of fundamental constants from laboratory measurements. Phys Rev Lett. 2004;92(23):230802doi: 10.1103/PhysRevLett.92.230802.
Fischer, M., Kolachevsky, N., Zimmermann, M., Holzwarth, R., Udem, T., Hänsch, T. W., Abgrall, M., Grünert, J., Maksimovic, I., Bize, S., Marion, H., Pereira Dos Santos, F., Lemonde, P., Santarelli, G., Laurent, P., Clairon, A., Salomon, C., Haas, M., Jentschura, U. D., & Keitel, C. H. (2004). New limits on the drift of fundamental constants from laboratory measurements. Physical review letters, 92(23), 230802. https://doi.org/10.1103/PhysRevLett.92.230802
Fischer, M, et al. "New limits on the drift of fundamental constants from laboratory measurements." Physical review letters vol. 92,23 (2004): 230802. doi: https://doi.org/10.1103/PhysRevLett.92.230802
Fischer M, Kolachevsky N, Zimmermann M, Holzwarth R, Udem T, Hänsch TW, Abgrall M, Grünert J, Maksimovic I, Bize S, Marion H, Pereira Dos Santos F, Lemonde P, Santarelli G, Laurent P, Clairon A, Salomon C, Haas M, Jentschura UD, Keitel CH. New limits on the drift of fundamental constants from laboratory measurements. Phys Rev Lett. 2004 Jun 11;92(23):230802. doi: 10.1103/PhysRevLett.92.230802. Epub 2004 Jun 10. PMID: 15245149.
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Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis.

Physical review letters

Jentschura UD, Kotochigova S, Le Bigot EO, Mohr PJ, Taylor BN.
PMID: 16241793
Phys Rev Lett. 2005 Oct 14;95(16):163003. doi: 10.1103/PhysRevLett.95.163003. Epub 2005 Oct 11.

We combine a limited number of accurately measured transition frequencies in hydrogen and deuterium, recent quantum electrodynamics (QED) calculations, and, as an essential additional ingredient, a generalized least-squares analysis, to obtain precise and optimal predictions for hydrogen and deuterium...

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Jentschura UD, Kotochigova S, Le Bigot EO, et al. Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis. Phys Rev Lett. 2005;95(16):163003doi: 10.1103/PhysRevLett.95.163003.
Jentschura, U. D., Kotochigova, S., Le Bigot, E. O., Mohr, P. J., & Taylor, B. N. (2005). Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis. Physical review letters, 95(16), 163003. https://doi.org/10.1103/PhysRevLett.95.163003
Jentschura, Ulrich D, et al. "Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis." Physical review letters vol. 95,16 (2005): 163003. doi: https://doi.org/10.1103/PhysRevLett.95.163003
Jentschura UD, Kotochigova S, Le Bigot EO, Mohr PJ, Taylor BN. Precise calculation of transition frequencies of hydrogen and deuterium based on a least-squares analysis. Phys Rev Lett. 2005 Oct 14;95(16):163003. doi: 10.1103/PhysRevLett.95.163003. Epub 2005 Oct 11. PMID: 16241793.
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Calculation of the one- and two-loop lamb shift for arbitrary excited hydrogenic states.

Physical review letters

Czarnecki A, Jentschura UD, Pachucki K.
PMID: 16383880
Phys Rev Lett. 2005 Oct 28;95(18):180404. doi: 10.1103/PhysRevLett.95.180404. Epub 2005 Oct 27.

General expressions for quantum electrodynamic corrections to the one-loop self-energy [of order alpha(Zalpha)6] and for the two-loop Lamb shift [of order alpha2(Zalpha)6] are derived. The latter includes all diagrams with closed fermion loops. The general results are valid for...

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Czarnecki A, Jentschura UD, Pachucki K. Calculation of the one- and two-loop lamb shift for arbitrary excited hydrogenic states. Phys Rev Lett. 2005;95(18):180404doi: 10.1103/PhysRevLett.95.180404.
Czarnecki, A., Jentschura, U. D., & Pachucki, K. (2005). Calculation of the one- and two-loop lamb shift for arbitrary excited hydrogenic states. Physical review letters, 95(18), 180404. https://doi.org/10.1103/PhysRevLett.95.180404
Czarnecki, Andrzej, et al. "Calculation of the one- and two-loop lamb shift for arbitrary excited hydrogenic states." Physical review letters vol. 95,18 (2005): 180404. doi: https://doi.org/10.1103/PhysRevLett.95.180404
Czarnecki A, Jentschura UD, Pachucki K. Calculation of the one- and two-loop lamb shift for arbitrary excited hydrogenic states. Phys Rev Lett. 2005 Oct 28;95(18):180404. doi: 10.1103/PhysRevLett.95.180404. Epub 2005 Oct 27. PMID: 16383880.
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Precision measurement of the hydrogen-deuterium 1S-2S isotope shift.

Physical review letters

Parthey CG, Matveev A, Alnis J, Pohl R, Udem T, Jentschura UD, Kolachevsky N, Hänsch TW.
PMID: 20867231
Phys Rev Lett. 2010 Jun 11;104(23):233001. doi: 10.1103/PhysRevLett.104.233001. Epub 2010 Jun 07.

Measuring the hydrogen-deuterium isotope shift via two-photon spectroscopy of the 1S-2S transition, we obtain 670,994,334,606(15) Hz. This is a 10-times improvement over the previous best measurement [A. Huber, Phys. Rev. Lett. 80, 468 (1998)] confirming its frequency value. A...

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Parthey CG, Matveev A, Alnis J, et al. Precision measurement of the hydrogen-deuterium 1S-2S isotope shift. Phys Rev Lett. 2010;104(23):233001doi: 10.1103/PhysRevLett.104.233001.
Parthey, C. G., Matveev, A., Alnis, J., Pohl, R., Udem, T., Jentschura, U. D., Kolachevsky, N., & Hänsch, T. W. (2010). Precision measurement of the hydrogen-deuterium 1S-2S isotope shift. Physical review letters, 104(23), 233001. https://doi.org/10.1103/PhysRevLett.104.233001
Parthey, Christian G, et al. "Precision measurement of the hydrogen-deuterium 1S-2S isotope shift." Physical review letters vol. 104,23 (2010): 233001. doi: https://doi.org/10.1103/PhysRevLett.104.233001
Parthey CG, Matveev A, Alnis J, Pohl R, Udem T, Jentschura UD, Kolachevsky N, Hänsch TW. Precision measurement of the hydrogen-deuterium 1S-2S isotope shift. Phys Rev Lett. 2010 Jun 11;104(23):233001. doi: 10.1103/PhysRevLett.104.233001. Epub 2010 Jun 07. PMID: 20867231.
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Generation of high-energy photons with large orbital angular momentum by compton backscattering.

Physical review letters

Jentschura UD, Serbo VG.
PMID: 21231735
Phys Rev Lett. 2011 Jan 07;106(1):013001. doi: 10.1103/PhysRevLett.106.013001. Epub 2011 Jan 05.

Usually, photons are described by plane waves with a definite 4-momentum. In addition to plane-wave photons, "twisted photons" have recently entered the field of modern laser optics; these are coherent superpositions of plane waves with a defined projection hm...

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Jentschura UD, Serbo VG. Generation of high-energy photons with large orbital angular momentum by compton backscattering. Phys Rev Lett. 2011;106(1):013001doi: 10.1103/PhysRevLett.106.013001.
Jentschura, U. D., & Serbo, V. G. (2011). Generation of high-energy photons with large orbital angular momentum by compton backscattering. Physical review letters, 106(1), 013001. https://doi.org/10.1103/PhysRevLett.106.013001
Jentschura, U D, and Serbo, V G. "Generation of high-energy photons with large orbital angular momentum by compton backscattering." Physical review letters vol. 106,1 (2011): 013001. doi: https://doi.org/10.1103/PhysRevLett.106.013001
Jentschura UD, Serbo VG. Generation of high-energy photons with large orbital angular momentum by compton backscattering. Phys Rev Lett. 2011 Jan 07;106(1):013001. doi: 10.1103/PhysRevLett.106.013001. Epub 2011 Jan 05. PMID: 21231735.
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Enhancement of blackbody friction due to the finite lifetime of atomic levels.

Physical review letters

Łach G, DeKieviet M, Jentschura UD.
PMID: 22400837
Phys Rev Lett. 2012 Jan 27;108(4):043005. doi: 10.1103/PhysRevLett.108.043005. Epub 2012 Jan 24.

The thermal friction force acting on an atom moving relative to a thermal photon bath is known to be proportional to an integral over the imaginary part of the frequency-dependent atomic (dipole) polarizability. Using a numerical approach, we find...

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Łach G, DeKieviet M, Jentschura UD. Enhancement of blackbody friction due to the finite lifetime of atomic levels. Phys Rev Lett. 2012;108(4):043005doi: 10.1103/PhysRevLett.108.043005.
Łach, G., DeKieviet, M., & Jentschura, U. D. (2012). Enhancement of blackbody friction due to the finite lifetime of atomic levels. Physical review letters, 108(4), 043005. https://doi.org/10.1103/PhysRevLett.108.043005
Łach, G, et al. "Enhancement of blackbody friction due to the finite lifetime of atomic levels." Physical review letters vol. 108,4 (2012): 043005. doi: https://doi.org/10.1103/PhysRevLett.108.043005
Łach G, DeKieviet M, Jentschura UD. Enhancement of blackbody friction due to the finite lifetime of atomic levels. Phys Rev Lett. 2012 Jan 27;108(4):043005. doi: 10.1103/PhysRevLett.108.043005. Epub 2012 Jan 24. PMID: 22400837.
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[Becoming a surgeon--at the university clinic].

Langenbecks Archiv fur Chirurgie. Supplement II, Verhandlungen der Deutschen Gesellschaft fur Chirurgie. Deutsche Gesellschaft fur Chirurgie. Kongress

Trede M, Jentschura D.
PMID: 1983528
Langenbecks Arch Chir Suppl II Verh Dtsch Ges Chir. 1990;1275-80.

The "surgeon's road" in an university department is marked by the demands of research, clinical work and teaching. The demands made by all 3 can hardly be met in the prescribed 6 years of training when adhering to the...

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Trede M, Jentschura D. Der Weg zum Chirurgen--an der Universitätsklinik. [Becoming a surgeon--at the university clinic]. Langenbecks Arch Chir Suppl II Verh Dtsch Ges Chir. 1990;1275-80
Trede, M., & Jentschura, D. (1990). Der Weg zum Chirurgen--an der Universitätsklinik. [Becoming a surgeon--at the university clinic]. Langenbecks Archiv fur Chirurgie. Supplement II, Verhandlungen der Deutschen Gesellschaft fur Chirurgie. Deutsche Gesellschaft fur Chirurgie. Kongress, 1275-80.
Trede, M, and Jentschura, D. "Der Weg zum Chirurgen--an der Universitätsklinik." [Becoming a surgeon--at the university clinic]. Langenbecks Archiv fur Chirurgie. Supplement II, Verhandlungen der Deutschen Gesellschaft fur Chirurgie. Deutsche Gesellschaft fur Chirurgie. Kongress vol. (1990): 1275-80.
Trede M, Jentschura D. Der Weg zum Chirurgen--an der Universitätsklinik. [Becoming a surgeon--at the university clinic]. Langenbecks Arch Chir Suppl II Verh Dtsch Ges Chir. 1990;1275-80. German. PMID: 1983528.
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Nonperturbative treatment of double compton backscattering in intense laser fields.

Physical review letters

Lötstedt E, Jentschura UD.
PMID: 19792355
Phys Rev Lett. 2009 Sep 11;103(11):110404. doi: 10.1103/PhysRevLett.103.110404. Epub 2009 Sep 09.

The emission of a pair of entangled photons by an electron in an intense laser field can be described by two-photon transitions of laser-dressed, relativistic Dirac-Volkov states. In the limit of a small laser field intensity, the two-photon transition...

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Lötstedt E, Jentschura UD. Nonperturbative treatment of double compton backscattering in intense laser fields. Phys Rev Lett. 2009;103(11):110404doi: 10.1103/PhysRevLett.103.110404.
Lötstedt, E., & Jentschura, U. D. (2009). Nonperturbative treatment of double compton backscattering in intense laser fields. Physical review letters, 103(11), 110404. https://doi.org/10.1103/PhysRevLett.103.110404
Lötstedt, Erik, and Jentschura, Ulrich D. "Nonperturbative treatment of double compton backscattering in intense laser fields." Physical review letters vol. 103,11 (2009): 110404. doi: https://doi.org/10.1103/PhysRevLett.103.110404
Lötstedt E, Jentschura UD. Nonperturbative treatment of double compton backscattering in intense laser fields. Phys Rev Lett. 2009 Sep 11;103(11):110404. doi: 10.1103/PhysRevLett.103.110404. Epub 2009 Sep 09. PMID: 19792355.
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Bremsstrahlung in alpha decay reexamined.

Physical review letters

Boie H, Scheit H, Jentschura UD, Köck F, Lauer M, Milstein AI, Terekhov IS, Schwalm D.
PMID: 17678219
Phys Rev Lett. 2007 Jul 13;99(2):022505. doi: 10.1103/PhysRevLett.99.022505. Epub 2007 Jul 13.

A high-statistics measurement of bremsstrahlung emitted in the alpha decay of (210)Po has been performed, which allows us to follow the photon spectra up to energies of approximately 500 keV. The measured differential emission probability is in good agreement...

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Boie H, Scheit H, Jentschura UD, et al. Bremsstrahlung in alpha decay reexamined. Phys Rev Lett. 2007;99(2):022505doi: 10.1103/PhysRevLett.99.022505.
Boie, H., Scheit, H., Jentschura, U. D., Köck, F., Lauer, M., Milstein, A. I., Terekhov, I. S., & Schwalm, D. (2007). Bremsstrahlung in alpha decay reexamined. Physical review letters, 99(2), 022505. https://doi.org/10.1103/PhysRevLett.99.022505
Boie, H, et al. "Bremsstrahlung in alpha decay reexamined." Physical review letters vol. 99,2 (2007): 022505. doi: https://doi.org/10.1103/PhysRevLett.99.022505
Boie H, Scheit H, Jentschura UD, Köck F, Lauer M, Milstein AI, Terekhov IS, Schwalm D. Bremsstrahlung in alpha decay reexamined. Phys Rev Lett. 2007 Jul 13;99(2):022505. doi: 10.1103/PhysRevLett.99.022505. Epub 2007 Jul 13. PMID: 17678219.
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Showing 1 to 12 of 28 entries