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An Introduction to Lieb's Simplified Approach to the Bose Gas

An Introduction to Lieb's Simplified Approach to the Bose Gas

Paperback

Series: Springerbriefs in Physics

General MathematicsPhysics

ISBN10: 3031813928
ISBN13: 9783031813924
Publisher: Springer
Published: Jan 31 2025
Pages: 104
Weight: 0.39
Height: 0.25 Width: 6.14 Depth: 9.21
Language: English

This book explores Lieb's Simplified approach to the ground state of systems of interacting bosons. While extensive research has delved into the behavior of interacting bosons, persistent challenges, such as proving Bose-Einstein condensation, remain. Introduced by Lieb in 1963, the Simplified approach has been the object of renewed attention in recent years, revealing surprising and promising results. Notably, this approach provides ground state energy predictions that agree with many-body systems asymptotically at both low and high densities. It further predicts a condensate fraction and correlation function that agree with Bogolyubov theory at low densities, and numerical predictions match quantum Monte Carlo simulations across all densities. This suggests that Lieb's Simplified approach could serve as a potent tool for reimagining the study of interacting bosons.

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