"Condensed-Matter Physics Seminar: Exact solution for low energy quantum anharmonic vibrations in a long polymer chain"

Date: 
Thu, 03/12/201512:00-13:30
Location: 
Danciger B buildng, Seminar room
Lecturer: Prof. Alexander L. Burin Affiliation: Tulane University Abstract: We propose the algorithm for determining quantum stationary states of periodic linear chain of atoms coupled by harmonic and third order anharmonic interactions (Fermi- Ulam-Pasta α problem) in the long wavelength limit within the resonant approach. These states can be encoded by sequences of integer numbers determining their energies and wave functions. Using these states we described the exact time evolution of a single phonon state showing coherent oscillations. The applications of theory to vibrational energy transport and quantum informatics are discussed. ‏האירוע הזה כולל שיחת וידאו ב-Google Hangouts. הצטרף: https://hangouts.google.com/hangouts/_/mail.huji.ac.il/condensed?hceid=b...