Quantum phase transition

Continued part 1, part 2 of ebook "Complex nonlinearity: Chaos, phase transitions, topology change and path integrals" provides readers with contents including: Chapter 4 - Nonlinear dynamics of path integrals; Chapter 5 - Complex nonlinearity: combining it all together;...

419p dongmelo 20-05-2024 2 1   Download

Ebook "Non-linear dynamics and fundamental interactions (NATO science series)" contains the papers presented at the NATO Advanced Research Institute on "Non-Linear Dynamics and Fundamental Interactions" held in Tashkent, Uzbekistan, from Oct.10-16,2004. The main objective of the Workshop was to bring together people working in areas of Fundamental physics relating to Quantum Field Theory, Finite Temperature Field theory and their applications to problems in particle physics, phase transitions and overlap regions with the areas of Quantum Chaos.

345p manmanthanhla0201 26-02-2024 6 1   Download

Part 2 book "An introduction to statistical mechanics and thermodynamics" includes content: Ensembles in classical statistical mechanics; classical ensembles - grand and otherwise; irreversibility; quantum ensembles; quantum canonical ensemble; black body radiation; the harmonic solid; ideal quantum gases; bose–einstein statistics; fermi–dirac statistics; insulators and semiconductors; phase transitions and the ising model;.... and other contents.

203p muasambanhan06 01-02-2024 2 1   Download

Part 2 book "Thermodynamics and an introduction to thermostatistics" includes content: Stability of thermodynamic systems, first order phase transitions, critical phenomena, the nernst postulate, summary of principles for general systems, properties of materials, statistical mechanics in the entropy representation - the microanonical formalism, quantum fluids, variational properties, perturbation expansions, and mean field theory,... and other contents.

293p muasambanhan06 03-02-2024 2 1   Download

Ebook "Gregory S. Ezra: A festschrift from theoretical chemistry accounts" selected researchers in theoretical chemistry present research highlights on major developments in the field. Originally published in the journal Theoretical Chemistry Accounts, these outstanding contributions are now available in a hardcover print format, as well as a special electronic edition.

179p nhanphanguyet 28-01-2024 5 2   Download

The orderedisorder phase transition in thin films at finite temperature and zero temperature (quantum phase transition) is discussed within the transverse Ising model using molecular field approximation.

5p viberbers 09-08-2023 7 3   Download

This paper is devoted to investigating the scenarios and the order of quantum phase transition of homogeneous boson systems to find out new phenomena by using the Cornwall–Jackiw–Tomboulis (CJT) effective potential approach.

3p vicaptainmarvel 21-04-2023 10 4   Download

The single-orbital Anderson impurity model using graphene as the host material is considered for the case where the impurity is placed on top of a carbon atom of the graphene lattice. This is an excellent setup for the r = 1 pseudogap impurity model, where there exists a quantum phase transition from the free local moment phase to the Kondo screening phase.

12p vimelindagates 18-07-2022 6 2   Download

A variety of experimental realizations of binary atomic Bose-Fermi mixtures have brought opportunities for studying composite quantum systems with different spin-statistics. The binary atomic mixtures can exhibit a structural transition from a mixture into phase separation as the boson-fermion interaction increases.

18p vioregon2711 19-02-2021 8 1   Download

Numerical results show that there exist quantum condensations of any component at appropriate regions of coupling constants corresponding to its positive effective chemistry potential, i.e. to its dynamic stability. In addition, the phase quantum transitions of both first and second order appear when the coupling constant changes.

6p tamynhan9 02-12-2020 8 1   Download

Quantum phase transition and dynamical stability in Bose-Einstein condensates (BECs) are studied within the framework of the Cornwall-Jackiw-Tomboulis (CJT) effective action approach. The effective potential is found in the double-bubble diagram approximation. Numerical results show that in this approximation stability is strongly influenced by the chemical potential and the quantum phase transition is of second order.

8p tamynhan9 02-12-2020 19 4   Download

A renormalization prescription is developed for CJT effective action in the double bubble approximation. It is shown that the triviality-related feature of the model does not show up. The phase transitions patterns are considered in detail for a specified set of model parameters.

11p tamynhan9 02-12-2020 8 2   Download

The thermal and quantum phase transitions are studied basing on the Cornwall-Jackiw-Tomboulis (CJT) effective action approach for the relativistic linear sigma model of the two-component mixing system. After obtaining the expression of the thermodynamic potential in Hartree-Fock (HF) approximation, which preserves the Goldstone theorem, the numerical results show that there may be two phase transition scenarios in the system.

8p viedison2711 03-09-2019 11 1   Download

One of the major advances of science in the 20th century was the discovery of a mathematical formulation of quantum mechanics by Heisenberg in 1925 [94].1 From a mathematical point of view, this transition from classical mechanics to quantum mechanics amounts to, among other things, passing from the commutative algebra of classical observables to the noncommutative algebra of quantum mechanical observables. To understand this better we recall that in classical mechanics an observable of a system (e.g. energy, position, momentum, etc.

239p thienbinh1311 13-12-2012 48 4   Download