Self-organized criticality and marginality in Ising spin glasses by Auditya Sharma

Indian Statistical Physics Community Meeting 2018

DATE:16 February 2018 to 18 February 2018

VENUE:Ramanujan Lecture Hall, ICTS Bangalore

This is an annual discussion meeting of the Indian statistical physics community which is attended by scientists, postdoctoral fellows, and graduate students, from across the country, working in the broad area of statistical physics.

This meeting would be the 5th in this series of meetings

This meeting will cover all the 8 Topics covered at STATPHYS meetings, namely:

General and mathematical aspects
rigorous results, exact solutions, probability theory, stochastic field theory, phase transitions and critical phenomena at equilibrium, information theory, optimization, etc.

Out-of-equilibrium aspects
driven systems, transport theory, relaxation and response dynamics, random processes, anomalous diffusion, fluctuation theorems, large deviations, out-of-equilibrium phase transitions, etc.

Quantum fluids and condensed matter
strongly correlated electrons, cold atoms, graphene, mesoscopic quantum phenomena, fractional quantum Hall effect, low dimensional quantum field theory, quantum phase transition s, quantum information, entanglement, Lüttinger liquid, spin liquid, etc.

Disordered and glassy systems
percolation, spin glasses, structural glasses, metallic glasses, jamming, glass transition, algorithmic problems, etc.

Biological physics
molecular motors, single and multicellular dynamics, bacteria, swimmers, spatio-temporal organization, biological membranes, biopolymer folding, genomics, biological networks, evolution models, evolutionary game theory, etc.

Soft matter
simple and complex fluids, active matter, molecular and ionic fluids,wetting, self-assembly, polymers, gels, liquid crystals, microemulsions, foams, membranes, colloids, granular materials, etc.

Nonlinear physics
dynamical systems, chaos (classical and quantum), pattern formation, chemical reactions, hydrodynamic instabilities, turbulence (classical and quantum), etc.

Interdisciplinary and complex systems
networks and graphs, epidemics, econophysics, social phenomena, traffic flow, ecology, etc.

0:00:00 Start
0:00:06 Self-organized critical behavior and marginality in spin glasses
0:00:12 IISER Bhopal
0:00:51 Auditya Sharma', Joonhyun Yeo' and M A Moore
0:01:09 Main message: Threefold
0:02:52 Hamiltonian The Kotliar, Anderson and Stein (KAS) Hamiltonian is
0:03:51 SK IR LR
0:05:15 At zero temperature,
0:06:48 Distribution of overlaps
0:07:54 Overlap distribution
0:09:06 Marginality and the distribution of local fields p(h)
0:10:35 Finite-size scaling of the distribution of fields (SK)
0:11:05 Anderson agrument
0:12:19 Marginality in the o 0.5 regime
0:12:30 Lack of marginality for a 0.5
0:12:44 Lack of marginality for o 0.5: Alternate evidence
0:12:54 Self-organized criticality
0:13:15 Energy
0:13:50 Conclusions and Outlook
0:14:49 Thank You