This thesis provides a detailed introduction to quantum oscillation measurement and analysis and offers a connection between Fermi surface properties and superconductivity in high-temperature superconductors. It also discusses the field of iron-based superconductors and tests the models for the appearance of nodes in the superconducting gap of a 111-type pnictide using quantum oscillation measurements combined with band structure calculation.
The same measurements were carried out to determine the quasiparticle mass in BaFe2(As1-xPx)2, which is strongly enhanced at the expected quantum critical point. While the lower superconducting critical field shows evidence of quantum criticality, the upper superconducting critical field is not influenced by the quantum critical point. These findings contradict conventional theories, demonstrating the need for a theoretical treatment of quantum critical superconductors, which has not been addressed to date.
The quest to discover similar evidence in the cuprates calls for the application of extreme conditions. As such, quantum oscillation measurements were performed under high pressure in a high magnetic field, revealing a negative correlation between quasiparticle mass and superconducting critical temperature.
Автор: Dieter Bauer Название: Computational Strong-Field Quantum Dynamics: Intense Light-Matter Interactions ISBN: 3110417251 ISBN-13(EAN): 9783110417258 Издательство: Walter de Gruyter Рейтинг: Цена: 105310.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This graduate textbook introduces the com-putational techniques to study ultra-fast quantum dynamics of matter exposed to strong laser fields. Coverage includes methods to propagate wavefunctions according to the time dependent Schrodinger, Klein-Gordon or Dirac equation, the calculation of typical observables, time-dependent density functional theory, multi configurational time-dependent Hartree-Fock, time-dependent configuration interaction singles, the strong-field approximation, and the microscopic particle-in-cell approach. Contents How to propagate a wavefunction? Calculation of typical strong-field observables Time-dependent relativistic wave equations: Numerics of the Dirac and the Klein-Gordon equation Time-dependent density functional theory The multiconfiguration time-dependent Hartree-Fock method Time-dependent configuration interaction singles Strong-field approximation and quantum orbits Microscopic particle-in-cell approach
Автор: Andrei D. Zaikin, Dmitry Golubev Название: Dissipative Quantum Mechanics of Nanostructures: Electron Transport, Fluctuations, and Interactions ISBN: 9814774502 ISBN-13(EAN): 9789814774505 Издательство: Taylor&Francis Рейтинг: Цена: 141890.00 T Наличие на складе: Невозможна поставка. Описание: This book provides a systematic and comprehensive coverage of the physical ideas, theoretical methods, and key results of the rapidly developing field of quantum transport and the macroscopic quantum phenomena that take place in the wealth of the available nanoscale structures.
Автор: Shashikant Mulay; John J. Quinn; Mark Shattuck Название: Strong Fermion Interactions in Fractional Quantum Hall States ISBN: 3030131181 ISBN-13(EAN): 9783030131180 Издательство: Springer Рейтинг: Цена: 93160.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание:
This monograph presents an intuitive theory of trial wave functions for strongly interacting fermions in fractional quantum Hall states. The correlation functions for the proposed fermion interactions follow a novel algebraic approach that harnesses the classical theory of invariants and semi-invariants of binary forms. This approach can be viewed as a fitting and far-reaching generalization of Laughlin’s approach to trial wave functions. Aesthetically viewed, it illustrates an attractive symbiosis between the theory of invariants and the theory of correlations. Early research into numerical diagonalization computations for small numbers of electrons shows strong agreement with the constructed trial wave functions.
The monograph offers researchers and students of condensed matter physics an accessible discussion of this interesting area of research.
Автор: Ryuji Okazaki Название: Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2 ISBN: 4431545913 ISBN-13(EAN): 9784431545910 Издательство: Springer Рейтинг: Цена: 121110.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: In this book, the author investigates hidden-order phase transition at T0 = 17.5 K in the heavy-fermion URu2Si2. The author also studies the superconducting state of URu2Si2 below Tc = 1.4 K, which coexists with the hidden-order phase.
Автор: Miron Ya. Amusia; Konstantin G. Popov; Vasily R. S Название: Theory of Heavy-Fermion Compounds ISBN: 3319343424 ISBN-13(EAN): 9783319343426 Издательство: Springer Рейтинг: Цена: 104480.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Upon reading the book, the reader finds that HF compounds with quite different microscopic nature exhibit the same non-Fermi liquid behavior, while the data collected on very different HF systems have a universal scaling behavior, and these compounds are unexpectedly uniform despite their diversity.
Автор: Joachim Alexander Maruhn; Paul-Gerhard Reinhard; E Название: Simple Models of Many-Fermion Systems ISBN: 3642038387 ISBN-13(EAN): 9783642038389 Издательство: Springer Рейтинг: Цена: 111790.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: In this user-friendly guide to the physics of many-particle systems, the material is developed along simple and generic models which illuminate the basic mechanisms behind each approach and which apply to a variety of systems in physics and chemistry.
Автор: Miron Ya. Amusia; Konstantin G. Popov; Vasily R. S Название: Theory of Heavy-Fermion Compounds ISBN: 3319108247 ISBN-13(EAN): 9783319108247 Издательство: Springer Рейтинг: Цена: 121890.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: Upon reading the book, the reader finds that HF compounds with quite different microscopic nature exhibit the same non-Fermi liquid behavior, while the data collected on very different HF systems have a universal scaling behavior, and these compounds are unexpectedly uniform despite their diversity.
Автор: Felix Finster, Niky Kamran Название: Spinors on Singular Spaces and the Topology of Causal Fermion Systems ISBN: 1470436213 ISBN-13(EAN): 9781470436216 Издательство: Mare Nostrum (Eurospan) Рейтинг: Цена: 83160.00 T Наличие на складе: Нет в наличии. Описание: Causal fermion systems and Riemannian fermion systems are proposed as a framework for describing non-smooth geometries. In particular, this framework provides a setting for spinors on singular spaces. The underlying topological structures are introduced and analysed. The connection to the spin condition in differential topology is worked out.
Автор: Joachim Alexander Maruhn; Paul-Gerhard Reinhard; E Название: Simple Models of Many-Fermion Systems ISBN: 3642435300 ISBN-13(EAN): 9783642435300 Издательство: Springer Рейтинг: Цена: 111790.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: In this user-friendly guide to the physics of many-particle systems, the material is developed along simple and generic models which illuminate the basic mechanisms behind each approach and which apply to a variety of systems in physics and chemistry.
Автор: Ryuji Okazaki Название: Hidden Order and Exotic Superconductivity in the Heavy-Fermion Compound URu2Si2 ISBN: 4431563598 ISBN-13(EAN): 9784431563594 Издательство: Springer Рейтинг: Цена: 87060.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: In this book, the author investigates hidden-order phase transition at T0 = 17.5 K in the heavy-fermion URu2Si2. The author also studies the superconducting state of URu2Si2 below Tc = 1.4 K, which coexists with the hidden-order phase.
Автор: Stephan Baer; Klaus Ensslin Название: Transport Spectroscopy of Confined Fractional Quantum Hall Systems ISBN: 3319373552 ISBN-13(EAN): 9783319373553 Издательство: Springer Рейтинг: Цена: 95770.00 T Наличие на складе: Есть у поставщика Поставка под заказ. Описание: This book provides an overview of recent developments in experiments probing the fractional quantum Hall (FQH) states of the second Landau level, especially the \nu=5/2 state. The experimental part of this book gives practical advice for solving the experimental challenges which researchers studying highly fragile FQH states are faced with.
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