Suggested reference texts

• 'Basic Notions of Condensed Matter Physics', by P. W. Anderson, Advanced Book Classics, reprinted by Westview Press (1997).
• 'Interacting Electrons and Quantum Magnetism', by A. Auerbach, Graduate Texts in Contemporary Physics, Springer, second reprint (1998).
• Negele and Orland's 'Quantum Many-particle Systems', by J. Negele and H. Orland, Advanced Book Classics, reprinted by Westview Press (1998).
• 'Quantum Phase Transitions', by S. Sachdev, Cambridge University Press, second edition (2011).