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DTSTART:20200329T030000
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BEGIN:VEVENT
DTSTAMP:20260404T015748Z
UID:1587466800@ist.ac.at
DTSTART:20200421T130000
DTEND:20200421T150000
DESCRIPTION:Speaker: Sthitadhi Roy\nhosted by Maksym Serbyn \nAbstract: Man
 y-body localised phases of matter fall outside the paradigm the convention
 al statistical mechanics and thermodynamics. A natural question thus is wh
 at minimal and generic properties random many-body Hamiltonians must posse
 ss for a localised phase to be stable. In this talk\, I will discuss two c
 omplementary answers by treating the problem on the Fock space wherein it 
 is a disordered hopping problem on a complex correlated graph. The first o
 f them is strong correlations in the Fock-space on-site energies which ari
 se since the exponentially large in system size number of Fock-space site 
 energies are built out of polynomially large random numbers for local Hami
 ltonians. Secondly\, constrained dynamics on the Fock space can also lead 
 to localisation. The theory is rooted in analytic but approximate calculat
 ions of the propagators on the Fock space and supported by numerical resul
 ts of spectral and dynamical properties of microscopic Hamiltonians.
LOCATION:Webinar\, ISTA
ORGANIZER:
SUMMARY:Sthitadhi Roy: [Webinar] Many-body localisation: a tale of correlat
 ions and constraints on Fock space
URL:https://talks-calendar.ista.ac.at/events/2751
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