Collective Excitations And Order Parameter Dynamics In Quantum Materials
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Author | : Min-Jae Kim |
Publisher | : |
Total Pages | : 0 |
Release | : 2022 |
Genre | : |
ISBN | : |
Download Collective Excitations and Order Parameter Dynamics in Quantum Materials Book in PDF, Epub and Kindle
Author | : Edoardo Baldini |
Publisher | : Springer |
Total Pages | : 360 |
Release | : 2018-03-28 |
Genre | : Technology & Engineering |
ISBN | : 3319774980 |
Download Nonequilibrium Dynamics of Collective Excitations in Quantum Materials Book in PDF, Epub and Kindle
This book studies the dynamics of fundamental collective excitations in quantum materials, focusing on the use of state-of-the-art ultrafast broadband optical spectroscopy. Collective behaviour in solids lies at the origin of several cooperative phenomena that can lead to profound transformations, instabilities and phase transitions. Revealing the dynamics of collective excitations is a topic of pivotal importance in contemporary condensed matter physics, as it provides information on the strength and spatial distribution of interactions and correlation. The experimental framework explored in this book relies on setting a material out-of-equilibrium by an ultrashort laser pulse and monitoring the photo-induced changes in its optical properties over a broad spectral region in the visible or deep-ultraviolet. Collective excitations (e.g. plasmons, excitons, phonons...) emerge either in the frequency domain as spectral features across the probed range, or in the time domain as coherent modes triggered by the pump pulse. Mapping the temporal evolution of these collective excitations provides access to the hierarchy of low-energy phenomena occurring in the solid during its path towards thermodynamic equilibrium. This methodology is used to investigate a number of strongly interacting and correlated materials with an increasing degree of internal complexity beyond conventional band theory.
Author | : Raymond F Bishop |
Publisher | : World Scientific |
Total Pages | : 520 |
Release | : 2002-12-16 |
Genre | : Science |
ISBN | : 9814489190 |
Download Recent Progress In Many-body Theories - Proceedings Of The 11th International Conference Book in PDF, Epub and Kindle
Quantum many-body theory as a discipline in its own right dates largely from the 1950's. It has developed since then to its current position as one of the cornerstones of modern theoretical physics. The field remains vibrant and active, vigorous and exciting. Its most powerful techniques are truly universal. They are constantly expanding to find new fields of application, while advances continue to be made in the more traditional areas. To commemorate the impending 80th birthdays of its two co-inventors, Firtz Coester and Hermann Kümmel, one such technique, namely the coupled cluster method, was especially highlighted at this meeting, the eleventh in the series of International Conferences on Recent Progress in Many-Body Theories. The history of the coupled cluster method as told here mirrors in many ways both the development of the entire discipline of microscopic quantum many-body theory and the history of the series of conferences. The series itself is universally recognised as being the premier series of meetings in this subject area. Its proceedings have always summarised the current state of the art through the lectures of its leading practitioners. The present volume is no exception. No serious researcher in quantum many-body theory or in any field which uses it can afford to be without this volume.
Author | : Uwe Santiago Pracht |
Publisher | : Springer |
Total Pages | : 194 |
Release | : 2017-12-14 |
Genre | : Technology & Engineering |
ISBN | : 3319728024 |
Download Electrodynamics of Quantum-Critical Conductors and Superconductors Book in PDF, Epub and Kindle
This thesis presents and discusses recent optical low-temperature experiments on disordered NbN, granular Al thin-films, and the heavy-fermion compound CeCoIn5, offering a unified picture of quantum-critical superconductivity. It provides a concise introduction to the respective theoretical models employed to interpret the experimental results, and guides readers through in-depth calculations supplemented with supportive figures in order to both retrace the interpretations and span the bridge between experiment and state-of-the art theory.
Author | : Alexei M. Tsvelik |
Publisher | : Cambridge University Press |
Total Pages | : 361 |
Release | : 2007-01-18 |
Genre | : Science |
ISBN | : 9780521529808 |
Download Quantum Field Theory in Condensed Matter Physics Book in PDF, Epub and Kindle
A new edition of a successful advanced text in condensed matter physics.
Author | : Edoardo Baldini |
Publisher | : |
Total Pages | : |
Release | : 2017 |
Genre | : |
ISBN | : |
Download Nonequilibrium Dynamics of Collective Excitations in Strongly Interacting and Correlated Quantum Systems Book in PDF, Epub and Kindle
Mots-clés de l'auteur: Ultrafast Optical Spectroscopy ; Many-Body Physics ; Collective Excitations ; Strongly Correlated Electron Systems.
Author | : Alfred Zong |
Publisher | : Springer Nature |
Total Pages | : 234 |
Release | : 2021-09-17 |
Genre | : Science |
ISBN | : 3030817512 |
Download Emergent States in Photoinduced Charge-Density-Wave Transitions Book in PDF, Epub and Kindle
This book advances understanding of light-induced phase transitions and nonequilibrium orders that occur in a broken-symmetry system. Upon excitation with an intense laser pulse, materials can undergo a nonthermal transition through pathways different from those in equilibrium. The mechanism underlying these photoinduced phase transitions has long been researched, but many details in this ultrafast, non-adiabatic regime still remain to be clarified. The work in this book reveals new insights into this phenomena via investigation of photoinduced melting and recovery of charge density waves (CDWs). Using several time-resolved diffraction and spectroscopic techniques, the author shows that the light-induced melting of a CDW is characterized by dynamical slowing-down, while the restoration of the symmetry-breaking order features two distinct timescales: A fast recovery of the CDW amplitude is followed by a slower re-establishment of phase coherence, the latter of which is dictated by the presence of topological defects in the CDW. Furthermore, after the suppression of the original CDW by photoexcitation, a different, competing CDW transiently emerges, illustrating how a hidden order in equilibrium can be unleashed by a laser pulse. These insights into CDW systems may be carried over to other broken-symmetry states, such as superconductivity and magnetic ordering, bringing us one step closer towards manipulating phases of matter using a laser pulse.
Author | : Raymond F. Bishop |
Publisher | : World Scientific |
Total Pages | : 520 |
Release | : 2002-12-01 |
Genre | : Science |
ISBN | : 9810248881 |
Download Recent Progress in Many-Body Theories Book in PDF, Epub and Kindle
Quantum many-body theory as a discipline in its own right dates largely from the 1950's. It has developed since then to its current position as one of the cornerstones of modern theoretical physics. The field remains vibrant and active, vigorous and exciting. Its most powerful techniques are truly universal. They are constantly expanding to find new fields of application, while advances continue to be made in the more traditional areas.
Author | : George Gruner |
Publisher | : CRC Press |
Total Pages | : 288 |
Release | : 2018-03-08 |
Genre | : Science |
ISBN | : 0429969562 |
Download Density Waves In Solids Book in PDF, Epub and Kindle
?Density Waves in Solids is written for graduate students and scientists interested in solid-state sciences. It discusses the theoretical and experimental state of affairs of two novel types of broken symmetry ground states of metals, charge, and spin density waves. These states arise as the consequence of electron-phonon and electron-electron interactions in low-dimensional metals.Some fundamental aspects of the one-dimensional electron gas, and of the materials with anisotropic properties, are discussed first. This is followed by the mean field theory of the phases transitions?discussed using second quantized formalism?together with the various experimental observations on the transition and on the ground states. Fluctuation effects and the collective excitations are reviewed next, using the Ginzburg-Landau formalism, followed by the review of the interaction of these states with the underlying lattice and with impurities. The final chapters are devoted to the response of the ground states to external perturbations.
Author | : Alexander Altland |
Publisher | : Cambridge University Press |
Total Pages | : 785 |
Release | : 2010-03-11 |
Genre | : Science |
ISBN | : 0521769752 |
Download Condensed Matter Field Theory Book in PDF, Epub and Kindle
This primer is aimed at elevating graduate students of condensed matter theory to a level where they can engage in independent research. Topics covered include second quantisation, path and functional field integration, mean-field theory and collective phenomena.