Instabilities in Field Theory: A Primer with Applications in Modified Gravity

by Adrià Delhom, Alejandro Jiménez Cano, Francisco José Maldonado Torralba

This book presents the most common types of instabilities arising in classical field theories, namely tachyonic, Laplacian, ghost-like or strong coupling instabilities, also commenting on their quantum implications. The authors provide a detailed account on the Ostrogradski theorem and its implications for higher-order time-derivative field theories. After presenting the general concepts and formalism, they dive into its applications to particular...

• Format: Paperback
• Language: English
• ISBN: 3031404327
• ISBN13: 9783031404320
• Release Date: September 2023
• Publisher: Springer
• Length: 71 Pages
• Weight: 0.29 lbs.
• Dimensions: 0.2" x 6.1" x 9.2"