From Coherent Tunneling to Relaxation

From Coherent Tunneling to Relaxation

Author: Alois Würger

Publisher: Springer

Published: 2007-09-28

Total Pages: 219

ISBN-13: 3540685316

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From Coherent Tunneling to Relaxation is an impressive review of ten years of progress in our understanding of interacting tunneling systems. The dielectric and elastic response of (111) off-center impurities in alkalide halides is investigated in detail and the coherent motion of an impurity pair is discussed in view of recently observed rotary echoes. The low-temperature properties of defect crystals with an impurity concentration higher than 100 ppm are reviewed and the dipolar interaction is shown to drive the cross-over to relaxational dynamics. This comprehensive presentation of the theory is illustrated by experimental data for lithium, cyanide, and hydroxyl impurities in various host crystals. This monograph is an ideal reference book for scientists working with defect crystals and glasses


Ultrashort Processes in Condensed Matter

Ultrashort Processes in Condensed Matter

Author: Walter E. Bron

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 398

ISBN-13: 1461529549

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The Advanced Study Institute (AS!) considered a number offacets of the very rapidly advancing field of theoretical and experimental aspects of ultrashort processes in condensed matter. Common threads exist between a series of example cases. One major subgroup of topics involves the ultrashort dynamics of excitations of various "particles" produced through the interactions of condensed matter with ultrashort duration laser light. Examples ofthe excitations include electronic and hole carriers, electron-hole plasma, phonons, vibrons and rotons, two phonon states, and excitons. Experimentation on the dynamics of such excitations, are carried out in the bulk, at surfaces, in thin films, and in quantum wells. The dynamical steps which the excitations usually undergo include photo-excitation, local thermalization, particle-particle interaction, particle phonon interactions and eventual return to true thermal equilibrium. This ASI was organized to benefit particularly advanced graduate students, specifically, those near the end of their Ph.D. thesis projects, and also for postdoctoral scholars already active in the field. The overall organizational goal was centered around a set oftutorially based lectures intermingled with full scale discussion periods of equal time and importance as the lectures. The general discussion periods were designed to offer to the participants ample time to ask detailed questions and to make comments and contributions of their own. In order to complete the involvement of the participants a full length poster session was also held. A representative set of abstracts of these posters appear as an Appendix to the lectures.


Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures

Ultrafast Spectroscopy of Semiconductors and Semiconductor Nanostructures

Author: Jagdeep Shah

Publisher: Springer Science & Business Media

Published: 2013-11-21

Total Pages: 536

ISBN-13: 366203770X

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Ultrafast spectroscopy of semiconductors and semiconductor nanostructures is currently one of the most exciting areas of research in condensed-matter physics. Remarkable recent progress in the generation of tunable femtosecond pulses has allowed direct investigation of the most fundamental dynamical processes in semiconductors. This second edition presents the most striking recent advances in the techniques of ultrashort pulse generation and ultrafast spectroscopy; it discusses the physics of relaxation, tunneling and transport dynamics in semiconductors and semiconductor nanostructures following excitation by femtosecond laser pulses.


Tunneling Phenomena in Chemical Physics

Tunneling Phenomena in Chemical Physics

Author: V.I. Gol'danskii

Publisher: Routledge

Published: 2021-10-15

Total Pages: 345

ISBN-13: 1351406701

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Surveys the contemporary concepts and theoretical and experimental results of tunneling processes. Examines from a unified viewpoint not only chemical reactions but also other physical physicochemical and biological phenomena in which the tunneling effect is of great importance. Covers the general ideas of tunneling, the low temperature chemical reactions that manifest tunneling mechanisms, tunneling effects in amorphous materials, quantum diffusion and surface phenomena in quantum crystals, hopping diffusion and tunneling scavenging of electrons, and tunneling effects in biological systems.


Condensation And Coherence In Condensed Matter, Proceedings Of The Nobel Jubilee Symposium

Condensation And Coherence In Condensed Matter, Proceedings Of The Nobel Jubilee Symposium

Author: T Claeson

Publisher: World Scientific

Published: 2003-03-21

Total Pages: 187

ISBN-13: 9814486418

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In 2001, the Nobel Foundation celebrated the 100th anniversary of the first Nobel Prize, and all previous Nobel laureates were invited to attend the Nobel ceremonies in Stockholm. This gave an excellent opportunity for arranging jubilee symposia with topics that would attract several of the laureates. The chosen subject of “Condensation and Coherence in Condensed Systems” attracted sixteen Nobel laureates and another thirty-five leading scientists.The idea was to bring scientists together from several related subdisciplines: atomic physics, quantum optics, and condensed matter physics, for cross-breeding of ideas, concepts, and experience. Subjects like phase transitions in strongly coupled systems, Bose-Einstein condensation in weakly coupled systems, macroscopic quantum phenomena, coherence in mesoscopic structures, and quantum information were intensively discussed from different points of view. Coherence phenomena in condensed systems were emphasized. A special session was devoted to the emerging field of quantum computing, with experimental and theoretical results reported for different types of qu-bits. The 2001 Nobel Prize awarded to Eric Cornell, Wolfgang Ketterle, and Carl Wieman, “for the achievement of Bose-Einstein condensation in dilute gases of alkali atoms, and for early fundamental studies of the properties of the condensates,” gave an extra flavor to the theme of the Centennial Symposium.


Low-Temperature Physics

Low-Temperature Physics

Author: Hans-Christian Stahl

Publisher: Springer Science & Business Media

Published: 2005-04-05

Total Pages: 579

ISBN-13: 3540231641

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Presents experiment, theory and technology in a unified manner. Contains numerous illustrations, tables and references as well as carefully selected problems for students. Surveys the fascinating historical development of the field.


Compton Scattering

Compton Scattering

Author: Frank Wissmann

Publisher: Springer Science & Business Media

Published: 2003-12-03

Total Pages: 170

ISBN-13: 9783540407423

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A comprehensive summary of experiments on Compton scattering from the proton and neutron performed at the electron accelerator MAMI. The experiments cover a photon energy range from 30 MeV to 500 MeV. The reader is introduced to the theoretical concepts of Compton scattering, followed by a description of the experiments on the proton, their analysis and results.


Tunneling Systems in Amorphous and Crystalline Solids

Tunneling Systems in Amorphous and Crystalline Solids

Author: Pablo Esquinazi

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 616

ISBN-13: 3662036959

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This comprehensive book provides a full description of experimental and theoretical details and the latest theories. The expert contributions point out the direction research is currently taking, the expectations and implications, serving as useful introductory surveys.


Condensation and Coherence in Condensed Matter

Condensation and Coherence in Condensed Matter

Author: Tord Claeson

Publisher: World Scientific

Published: 2003

Total Pages: 590

ISBN-13: 9789812383532

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In 2001, the Nobel Foundation celebrated the 100th anniversary of the first Nobel Prize, and all previous Nobel laureates were invited to attend the Nobel ceremonies in Stockholm. This gave an excellent opportunity for arranging jubilee symposia with topics that would attract several of the laureates. The chosen subject of ?Condensation and Coherence in Condensed Systems? attracted sixteen Nobel laureates and another thirty-five leading scientists.The idea was to bring scientists together from several related subdisciplines: atomic physics, quantum optics, and condensed matter physics, for cross-breeding of ideas, concepts, and experience. Subjects like phase transitions in strongly coupled systems, Bose-Einstein condensation in weakly coupled systems, macroscopic quantum phenomena, coherence in mesoscopic structures, and quantum information were intensively discussed from different points of view. Coherence phenomena in condensed systems were emphasized. A special session was devoted to the emerging field of quantum computing, with experimental and theoretical results reported for different types of qu-bits. The 2001 Nobel Prize awarded to Eric Cornell, Wolfgang Ketterle, and Carl Wieman, ?for the achievement of Bose-Einstein condensation in dilute gases of alkali atoms, and for early fundamental studies of the properties of the condensates,? gave an extra flavor to the theme of the Centennial Symposium.