Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session A61: Understanding Amorphous Matter Through Modeling and Simulation
8:00 AM–10:48 AM,
Monday, March 6, 2023
Room: Room 418
Sponsoring
Unit:
DCOMP
Chair: Robert Riggleman, University of Pennsylvania
Abstract: A61.00007 : Low energy excitations in Mean Field Spin Glasses at zero temperature
9:36 AM–9:48 AM
Presenter:
Flavio Nicoletti
(University of Rome La Sapienza)
Authors:
Flavio Nicoletti
(University of Rome La Sapienza)
Federico Ricci-Tersenghi
(University of Rome La Sapienza)
Silvio Franz
(Universite Paris-Saclay)
Giorgio Parisi
(Sapienza Universita di Roma)
Cosimo Lupo
(University of Rome 'La Sapienza')
In this talk, we analyse the problem in vector spin glass models: each spin is a vector with unitary modulus. We present results related to two Mean Field models: a long-range spin glass defined on a fully connected graph and a spin glass defined on a random regular graph. In both cases, the VDOS of the system at zero-temperature is computed, both analytically (when possible) and numerically, and the localisation properties of the eigenvectors are analysed. The system is studied varying the strength of an external random magnetic field.
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