Spectral Analysis of N-Body Schrdinger Operators at Two-Cluster Thresholds (Hardcover)

Erik Skibsted

ISBN 10: 9819726239 / ISBN 13: 9789819726233

Editore: Springer Verlag, Singapore, 2024

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Hardcover. This book provides a systematic study of spectral and scattering theory for many-body Schroedinger operators at two-cluster thresholds. While the two-body problem (reduced after separation of the centre of mass motion to a one-body problem at zero energy) is a well-studied subject, the literature on many-body threshold problems is sparse. However, the authors analysis covers for example the system of three particles interacting by Coulomb potentials and restricted to a small energy region to the right of a fixed nonzero two-body eigenvalue. In general, the authors address the question: How do scattering quantities for the many-body atomic and molecular models behave within the limit when the total energy approaches a fixed two-cluster threshold? This includes mapping properties and singularities of the limiting scattering matrix, asymptotics of the total scattering cross section, and absence of transmission from one channel to another in the small inter-cluster kinetic energy region. The authors principal tools are the FeshbachGrushin dimension reduction method and spectral analysis based on a certain Mourre estimate. Additional topics of independent interest are the limiting absorption principle, micro-local resolvent estimates, Rellich- and Sommerfeld-type theorems and asymptotics of the limiting resolvents at thresholds. The mathematical physics field under study is very rich, and there are many open problems, several of them stated explicitly in the book for the interested reader. This book provides a systematic study of spectral and scattering theory for many-body Schroedinger operators at two-cluster thresholds. While the two-body problem (reduced after separation of the centre of mass motion to a one-body problem at zero energy) is a well-studied subject, the literature on many-body threshold problems is sparse. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. Codice articolo 9789819726233

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Titolo: Spectral Analysis of N-Body Schrdinger ...

Casa editrice: Springer Verlag, Singapore

Data di pubblicazione: 2024

Legatura: Hardcover

Condizione: new

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Riassunto:

This book provides a systematic study of spectral and scattering theory  for many-body Schrödinger operators at two-cluster thresholds. While the  two-body problem (reduced after separation of the centre of mass motion to a one-body problem at zero energy) is a well-studied subject, the  literature on  many-body threshold problems  is sparse. However, the authors’ analysis covers for example the system of three particles  interacting by Coulomb potentials and restricted to a small energy  region to the right of a fixed nonzero two-body eigenvalue. In general,  the authors address the question: How do scattering quantities for the  many-body atomic and molecular models behave within the limit when the  total energy approaches a fixed two-cluster threshold? This includes  mapping properties and singularities of the limiting scattering matrix,  asymptotics of the total scattering cross section, and absence of  transmission from one channel to another in the small inter-cluster  kinetic energy region. The authors’ principal tools are the  Feshbach–Grushin dimension reduction method and spectral analysis based  on a certain Mourre estimate. Additional topics of independent interest  are the limiting absorption principle, micro-local resolvent estimates,  Rellich- and Sommerfeld-type theorems and asymptotics of the limiting  resolvents at thresholds. The mathematical physics field under study is  very rich, and there are many open problems, several of them stated  explicitly in the book for the interested reader. 

Informazioni sull?autore:

Erik Skibsted is Associate Professor at Department of Mathematics of Aarhus University.

Xue Ping Wang is Professor at Université de Nantes.