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Der Physik (der + physik)

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Physics and Astronomy90%
Chemistry6%

Selected Abstracts

Cover Picture: Fortschritte der Physik 10 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 10 2010
Article first published online: 7 SEP 2010
The cover page of 2010 shows an abstract picture of the so-called string landscape. It is known for some time that, although string theory seems to be unique in ten or eleven space-time dimensions, a vast number of solutions pops out upon compactification to lower dimensions, in particular to fours space-time dimensions. [source]

Contents: Fortschritte der Physik 10 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 10 2010
Article first published online: 7 SEP 2010
No abstract is available for this article. [source]

Cover Picture: Fortschritte der Physik 7,9 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 7-9 2010
Article first published online: 21 JUN 2010
The cover page of 2010 shows an abstract picture of the so-called string landscape. It is known for some time that, although string theory seems to be unique in ten or eleven space-time dimensions, a vast number of solutions pops out upon compactification to lower dimensions, in particular to fours space-time dimensions. [source]

Cover Picture: Fortschritte der Physik 6 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 6 2010
Article first published online: 6 MAY 2010
The cover page of 2010 shows an abstract picture of the so-called string landscape. It is known for some time that, although string theory seems to be unique in ten or eleven space-time dimensions, a vast number of solutions pops out upon compactification to lower dimensions, in particular to fours space-time dimensions. [source]

Contents: Fortschritte der Physik 6 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 6 2010
Article first published online: 6 MAY 2010
No abstract is available for this article. [source]

Cover Picture: Fortschritte der Physik 4,5 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 4-5 2010
Article first published online: 22 MAR 2010
The cover page of 2010 shows an abstract picture of the so-called string landscape. It is known for some time that, although string theory seems to be unique in ten or eleven space-time dimensions, a vast number of solutions pops out upon compactification to lower dimensions, in particular to fours space-time dimensions. [source]

Contents: Fortschritte der Physik 4,5 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 4-5 2010
Article first published online: 22 MAR 2010
No abstract is available for this article. [source]

Cover Picture: Fortschritte der Physik 2,3 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 2-3 2010
Article first published online: 18 JAN 2010
The cover page of 2010 shows an abstract picture of the so-called string landscape. It is known for some time that, although string theory seems to be unique in ten or eleven space-time dimensions, a vast number of solutions pops out upon compactification to lower dimensions, in particular to fours space-time dimensions. [source]

Contents: Fortschritte der Physik 2,3 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 2-3 2010
Article first published online: 18 JAN 2010
No abstract is available for this article. [source]

Cover Picture: Fortschritte der Physik 1 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 1 2010
Article first published online: 16 DEC 200
The cover page of 2010 shows an abstract picture of the so-called string landscape. It is known for some time that, although string theory seems to be unique in ten or eleven space-time dimensions, a vast number of solutions pops out upon compactification to lower dimensions, in particular to four space-time dimensions. [source]

Contents: Fortschritte der Physik 1 / 2010

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 1 2010
Article first published online: 16 DEC 200
No abstract is available for this article. [source]

Cover Picture: Fortschritte der Physik 11,12 / 2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 11-12 2009
Article first published online: 9 NOV 200
The cover page of 2009 shows high-resolution interference "quantum carpet" patterns for the momentum wave function of an interacting Bose-Einstein condensate (BEC). As time progresses (from back to front), the many-body mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a time-varying interference structure by inducing site-dependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed "quantum carpet". Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particle-particle interactions in the zero-temperature limit. [source]

Cover Picture: Fortschritte der Physik 10 / 2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 10 2009
Article first published online: 14 SEP 200
The cover page of 2009 shows high-resolution interference "quantum carpet" patterns for the momentum wave function of an interacting Bose-Einstein condensate (BEC). As time progresses (from back to front), the many-body mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a time-varying interference structure by inducing site-dependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed "quantum carpet". Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particle-particle interactions in the zero-temperature limit. [source]

Cover Picture: Fortschritte der Physik 9 / 2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 9 2009
Article first published online: 21 AUG 200
The cover page of 2009 shows high-resolution interference "quantum carpet" patterns for the momentum wave function of an interacting Bose-Einstein condensate (BEC). As time progresses (from back to front), the many-body mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a time-varying interference structure by inducing site-dependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed "quantum carpet". Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particle-particle interactions in the zero-temperature limit. [source]

Contents: Fortschritte der Physik 8 / 2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 8 2009
Article first published online: 3 JUL 200
No abstract is available for this article. [source]

Cover Picture: Fortschritte der Physik 5,7 / 2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 5-7 2009
Article first published online: 27 MAY 200
The cover page of 2009 shows high-resolution interference "quantum carpet" patterns for the momentum wave function of an interacting Bose-Einstein condensate (BEC). As time progresses (from back to front), the many-body mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a time-varying interference structure by inducing site-dependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed "quantum carpet". Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particle-particle interactions in the zero-temperature limit. [source]

Cover Picture: Fortschritte der Physik 3,4 /2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 3-4 2009
Article first published online: 23 MAR 200
The cover page of 2009 shows high-resolution interference "quantum carpet" patterns for the momentum wave function of an interacting Bose-Einstein condensate (BEC). As time progresses (from back to front), the many-body mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a time-varying interference structure by inducing site-dependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed "quantum carpet". Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particle-particle interactions in the zero-temperature limit. [source]

Cover Picture: Fortschritte der Physik 1,2 /2009

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 1-2 2009
Article first published online: 9 FEB 200
The cover page of 2009 shows high-resolution interference "quantum carpet" patterns for the momentum wave function of an interacting Bose-Einstein condensate (BEC). As time progresses (from back to front), the many-body mean field interaction of the BEC first leads to a broadening of the wave function, but then also to a time-varying interference structure by inducing site-dependent nonlinear phase shifts when the BEC is confined in a spatially periodic potential. Imaging the wave function in momentum space for different times leads to a pattern that one reminds of a carefully woven carpet and is hence termed "quantum carpet". Quantum carpets beautifully demonstrate the surprisingly high matter wave coherence of particle-particle interactions in the zero-temperature limit. [source]

Contents: Fortschritte der Physik 11,12 /2008

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 11-12 2008
Article first published online: 27 OCT 200
No abstract is available for this article. [source]

Contents: Fortschritte der Physik 10 /2008

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 10 2008
Article first published online: 12 SEP 200
No abstract is available for this article. [source]

Preface: Fortschritte der Physik 4-5/2008

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 4-5 2008
Maja Buric
No abstract is available for this article. [source]

Editorial: Fortschritte der Physik 1/2008

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 1 2008
D. Lüst
No abstract is available for this article. [source]

Fortschritte der Physik in theWorld Year of Physics

FORTSCHRITTE DER PHYSIK/PROGRESS OF PHYSICS, Issue 1 2005
D. Lüst
No abstract is available for this article. [source]

E10: Eine fundamentale Symmetrie der Physik?

PHYSIK IN UNSERER ZEIT (PHIUZ), Issue 3 2010
Neuer Zugang zur Quantengravitation
Abstract Symmetrien spielen in den grundlegenden Theorien der Physik eine zentrale Rolle. Sie könnten helfen, eine Quantengravitation zu entwickeln, die erfolgreich Allgemeine Relativitätstheorie und Quantentheorie zusammenbringt. Gibt es ein Symmetrieprinzip, das diese Zusammenführung bewirkt? Die einzigartige mathematische E10-Struktur eröffnet tatsächlich einen neuen Zugang zur Quantengravitation. Mit ihr ließe sich eine neue Beschreibung von urknallartigen Singularitäten und Schwarzen Löchern finden. Das vollständige Verständnis des E10-Modells mit seinen Auswirkungen auf die Struktur der Raumzeit könnte tiefe Einblicke in grundlegende Symmetrien und Prinzipien der Welt eröffnen. Noch allerdings steht die theoretische Physik hier am Anfang. [source]

Dornröschen und Mauerblümchen: Nachzügler und vergessene Arbeiten in der Physik

PHYSIK IN UNSERER ZEIT (PHIUZ), Issue 1 2007
Werner Marx Dr.
Abstract Wissenschaftliche Publikationen werden von Fachkollegen im Durchschnitt in den ersten drei Jahren am häufigsten zitiert, danach fällt die Rate rasch ab. Es gibt jedoch Arbeiten, die erst nach vielen Jahren oder Jahrzehnten ihre volle Wirkung entfalten. Berühmte Beispiele für solche "Dörnröschen" sind Walter Kohns und Lu Shams Pionierarbeiten über die Dichtefunktionaltheorie oder die EPR-Arbeit von Albert Einstein, Boris Podolsky und Nathan Rosen. Manche Pionierarbeiten waren jedoch ihrer Zeit zu weit voraus und gerieten wie ihre Verfasser in Vergessenheit. Ein Beispiel für ein solches "Mauerblümchen" ist die Arbeit von Ralph Alpher und Robert Herman von 1949 mit der ersten theoretischen Vorhersage der kosmischen Hintergrundstrahlung. [source]

Elementary processes with two quantum transitions

ANNALEN DER PHYSIK, Issue 7-8 2009
M. Göppert-Mayer
Göttinger Dissertation. Reprint of "Über Elementarakte mit zwei Quantensprüngen", Annalen der Physik 9 [401], 273,294 (1931). Translation by Daniel C. Koepke, Montana State University, Department of Physics, Bozeman, MT 59717-3840, USA; e-mail: dkoepke@physics.montana.edu [source]

Elementary processes with two quantum transitions

ANNALEN DER PHYSIK, Issue 7-8 2009
M. Göppert-Mayer
Göttinger Dissertation. Reprint of "Über Elementarakte mit zwei Quantensprüngen", Annalen der Physik 9 [401], 273,294 (1931). Translation by Daniel C. Koepke, Montana State University, Department of Physics, Bozeman, MT 59717-3840, USA; e-mail: dkoepke@physics.montana.edu [source]

Disziplinbildung und Vorlesungsalltag, Funktionen von Lehrbüchern der Physik um 1800 mit einem Fokus auf die Universität Jena,

BERICHTE ZUR WISSENSCHAFTSGESCHICHTE, Issue 1 2004
Jan Frercks Dr.
Abstract Physics textbooks from ca 1800 are on the one hand self reflective texts that consider the then emerging discipline ,physics', and serve on the other hand as the bread and butter for the day to day work of teachers and students of physics. The two parts of this paper explore this twofold nature. First, those textbooks written and used by professors in Jena, Halle and Göttingen are used in order to identify a typical textbook. This relies on a close examination of the respective introductory chapter and the one on electricity. The result is used in the second part to provide the background for the reconstruction of the use of physics textbooks in Jena. It is shown when and, as far as possible, why each particular textbook was chosen, withdrawn, neglected, changed or written in the course of physics teaching from 1780 to 1820. Some conclusions are drawn with regard to Jena's position in physics at that time. [source]

Adding Velocities without Exceeding the Velocity of Light: Wilhelm Wien's Algorithm (1904) and Albert Einstein's Light Postulate (1905)

CENTAURUS, Issue 2 2006
Giora Hon
Abstract We propose a likely path to Einstein's postulate of the constancy of the velocity of light as part of his theory of relativity in 1905. Our principal claim is that the issue of adding velocities played a crucial role in pointing the way to positing a second postulate, for Einstein realized that the principle of relativity is not sufficient to provide the basis for the new theory. We suggest that Wilhelm Wien's novel algorithm for adding velocities, published in 1904 in Annalen der Physik, stimulated Einstein's thinking, which led to the light postulate. [source]

2003 , das Jahr der Chemie: im Rückblick mit Einblick zum Ausblick

CHEMKON - CHEMIE KONKRET, FORUM FUER UNTERRICHT UND DIDAKTIK, Issue 4 2003
Christiane S. Reiners Prof. Dr.
Abstract DIE CHEMIEORGANISATIONEN in Deutschland begehen gemeinsam mit dem Bundesministerium für Bildung und Forschung (BMBF) das Jahr 2003 als Jahr der Chemie, in dem sich der Geburtstag des deutschen Chemikers, Justus von Liebig, zum 200sten Mal jährt. Mit dem Jahr der Chemie wird die Tradition der vorangegangenen themenbezogenen Jahre (2000: Jahr der Physik, 2001 Jahr der Lebenswissenschaften, 2002: Jahr der Geowissenschaften) fortgesetzt. Ziel der Veranstaltungen ist es, den Dialog zwischen Wissenschaften und interessierter Öffentlichkeit zu fördern. In einem geschichtlichen Rückblick auf die Naturwissenschaft Chemie soll zunächst ergründet werden, warum ausgerechnet die Geburtsdaten des Justus von Liebig Anlass gaben, das Jahr 2003 zum Jahr der Chemie zu krönen. Auf der Grundlage eines didaktisch aufbereiteten Einblicks in das Leben und Werk des Wissenschaftlers von Liebig soll die Entscheidung kritisch reflektiert werden. Und schließlich möchte der Artikel einen Ausblick auf die Ziele der Aktivitäten geben, die von den mit der Chemie verbundenen Instituten der Universität zu Köln zum Jahr der Chemie geplant wurden. [source]