1.

Record Nr.

UNISA996466678403316

Autore

Graham Noah

Titolo

Spectral Methods in Quantum Field Theory [[electronic resource] /] / by Noah Graham, Markus Quandt, Herbert Weigel

Pubbl/distr/stampa

Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2009

ISBN

3-642-00139-4

Edizione

[1st ed. 2009.]

Descrizione fisica

1 online resource (XI, 182 p. 30 illus.)

Collana

Lecture Notes in Physics, , 0075-8450 ; ; 777

Classificazione

UD 8220

UO 4000

Disciplina

530.143

Soggetti

Elementary particles (Physics)

Quantum field theory

Quantum physics

Physics

Elementary Particles, Quantum Field Theory

Quantum Physics

Numerical and Computational Physics, Simulation

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Bibliographic Level Mode of Issuance: Monograph

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Review of Scattering Theory -- Quantum Field Theory and the Spectral Method -- Applications in One Space Dimension -- Spectral Analysis of Charges -- Hedgehog Configurations in = 3+1 -- Boundary Conditions and Casimir Forces -- String-Type Configurations -- Quantum Corrections to -Balls.

Sommario/riassunto

This concise text introduces techniques from quantum mechanics, especially scattering theory, to compute the effects of an external background on a quantum field in general, and on the properties of the quantum vacuum in particular. This approach can be successfully used in an increasingly large number of situations, ranging from the study of solitons in field theory and cosmology to the determination of Casimir forces in nano-technology. The method introduced and applied in this book is shown to give an unambiguous connection to perturbation theory, implementing standard renormalization conditions even for non-perturbative backgrounds. It both gives new theoretical insights,



for example illuminating longstanding questions regarding Casimir stresses, and also provides an efficient analytic and numerical tool well suited to practical calculations. Last but not least, it elucidates in a concrete context many of the subtleties of quantum field theory, such as divergences, regularization and renormalization, by connecting them to more familiar results in quantum mechanics. While addressed primarily at young researchers entering the field and nonspecialist researchers with backgrounds in theoretical and mathematical physics, introductory chapters on the theoretical aspects of the method make the book self-contained and thus suitable for advanced graduate students.

2.

Record Nr.

UNINA9910966221903321

Autore

Ratha Dilip

Titolo

Migration and Remittances Factbook 2008 / / Ratha, Dilip

Pubbl/distr/stampa

Washington, D.C. : , : The World Bank, , 2008

ISBN

1-281-21774-3

9786611217747

0-8213-7414-1

Edizione

[1st ed.]

Descrizione fisica

1 online resource (240 pages)

Collana

Migration and remittances factbook ; ; 2008

Altri autori (Persone)

RathaDilip

XuZhimei

Disciplina

304.8

Soggetti

Emigrant remittances

Emigration and immigration

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di contenuto

Contents; Acknowledgments; Foreword; Data Notes; Migration and Remittances: Top 10 Countries; Regional Tables; Income-Group Tables; Country Tables (in alphabetical order); Glossary

Sommario/riassunto

This book contains statistical snapshots for 195 countries and 13 regional and income groups. The 200+ tables, each focused on one country, region, or income group, explore immigration, emigration and skilled emigration, and inward and outward remittance flows. Summary



reports on the top 10 countries in each category are also included.